|
Name |
Accession |
Description |
Interval |
E-value |
| COX1 |
MTH00183 |
cytochrome c oxidase subunit I; Provisional |
1-218 |
4.71e-143 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177234 Cd Length: 516 Bit Score: 409.31 E-value: 4.71e-143
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:MTH00183 18 LYLVFGAWAGMVGTALSLLIRAELSQPGALLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLIPLMIGAPDMAFPRM 97
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:MTH00183 98 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 177
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:MTH00183 178 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 235
|
|
| Cyt_c_Oxidase_I |
cd01663 |
Cytochrome C oxidase subunit I. Cytochrome c oxidase (CcO), the terminal oxidase in the ... |
1-218 |
3.59e-129 |
|
Cytochrome C oxidase subunit I. Cytochrome c oxidase (CcO), the terminal oxidase in the respiratory chains of eukaryotes and most bacteria, is a multi-chain transmembrane protein located in the inner membrane of mitochondria and the cell membrane of prokaryotes. It catalyzes the reduction of O2 and simultaneously pumps protons across the membrane. The number of subunits varies from three to five in bacteria and up to 13 in mammalian mitochondria. Only subunits I and II are essential for function, but subunit III, which is also conserved, may play a role in assembly or oxygen delivery to the active site. Subunits I, II, and III of mammalian CcO are encoded within the mitochondrial genome and the remaining 10 subunits are encoded within the nuclear genome. Subunit I contains a heme-copper binuclear center (the active site where O2 is reduced to water) formed by a high-spin heme (heme a3) and a copper ion (CuB). It also contains a low-spin heme (heme a), believed to participate in the transfer of electrons to the binuclear center. For every reduction of an O2 molecule, eight protons are taken from the inside aqueous compartment and four electrons are taken from cytochrome c on the opposite side of the membrane. The four electrons and four of the protons are used in the reduction of O2; the four remaining protons are pumped across the membrane. This charge separation of four charges contributes to the electrochemical gradient used for ATP synthesis. Two proton channels, the D-pathway and K-pathway, leading to the binuclear center have been identified in subunit I. A well-defined pathway for the transfer of pumped protons beyond the binuclear center has not been identified. Electrons are transferred from cytochrome c (the electron donor) to heme a via the CuA binuclear site in subunit II, and directly from heme a to the binuclear center.
Pssm-ID: 238833 Cd Length: 488 Bit Score: 372.59 E-value: 3.59e-129
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:cd01663 9 LYLIFGLWSGLVGTSLSLLIRLELSQPGSQLGNDQLYNVIVTAHALIMIFFMVMPALIGGFGNWLVPLMIGAPDMAFPRL 88
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:cd01663 89 NNLSFWLLPPSLLLLLLSALVEGGAGTGWTVYPPLSSILAHSGPSVDLAIFSLHLAGISSILGAINFITTIFNMRAPGMT 168
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:cd01663 169 LEKMPLFVWSVLITAFLLLLSLPVLAGAITMLLTDRNFNTSFFDPAGGGDPILYQHLF 226
|
|
| CyoB |
COG0843 |
Heme/copper-type cytochrome/quinol oxidase, subunit 1 [Energy production and conversion]; |
1-218 |
7.29e-70 |
|
Heme/copper-type cytochrome/quinol oxidase, subunit 1 [Energy production and conversion];
Pssm-ID: 440605 Cd Length: 535 Bit Score: 222.31 E-value: 7.29e-70
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPiMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:COG0843 21 MYLVTAFVFLLIGGLLALLMRLQLAGPGLGLLSPETYNQLFTMHGTIMIFFFATP-FLAGFGNYLVPLQIGARDMAFPRL 99
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:COG0843 100 NALSFWLYLFGGLLLLISLFVGGAADVGWTFYPPLSGLEASPGVGVDLWLLGLALFGVGSILGGVNFIVTILKMRAPGMT 179
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:COG0843 180 LMRMPLFTWAALVTSILILLAFPVLAAALLLLLLDRSLGTHFFDPAGGGDPLLWQHLF 237
|
|
| COX1 |
pfam00115 |
Cytochrome C and Quinol oxidase polypeptide I; Cytochrome c oxidase (E.C:7.1.1.9) is a key ... |
1-218 |
1.90e-44 |
|
Cytochrome C and Quinol oxidase polypeptide I; Cytochrome c oxidase (E.C:7.1.1.9) is a key enzyme in aerobic metabolism. Proton pumping haem-copper oxidases represent the terminal, energy-transfer enzymes of respiratory chains in prokaryotes and eukaryotes. The CuB-haem a3 (or haem o) binuclear centre, associated with the largest subunit I of cytochrome c and ubiquinol oxidases (E.C:1.10.3.11), is directly involved in the coupling between dioxygen reduction and proton pumping. Some terminal oxidases generate a transmembrane proton gradient across the plasma membrane (prokaryotes) or the mitochondrial inner membrane (eukaryotes). The enzyme complex consists of 3-4 subunits (prokaryotes) up to 13 polypeptides (mammals) of which only the catalytic subunit (equivalent to mammalian subunit I (COXI) is found in all haem-copper respiratory oxidases. The presence of a bimetallic centre (formed by a high-spin haem and copper B) as well as a low-spin haem, both ligated to six conserved histidine residues near the outer side of four transmembrane spans within CO I is common to all family members.
Pssm-ID: 459678 Cd Length: 432 Bit Score: 153.50 E-value: 1.90e-44
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPiMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:pfam00115 5 LYLVTALVWFLVGGLLGLLIRLQLAFPGLNFLSPLTYNQLRTLHGNLMIFWFATP-FLFGFGNYLVPLMIGARDMAFPRL 83
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGveaGAGTGWTVYPPLAGnlahagasVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:pfam00115 84 NALSFWLVVLGAVLLLASFG---GATTGWTEYPPLVG--------VDLWYIGLLLAGVSSLLGAINFIVTILKRRAPGMT 152
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QyQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNttffdpAGGGDPILYQHLF 218
Cdd:pfam00115 153 L-RMPLFVWAILATAILILLAFPVLAAALLLLLLDRSLG------AGGGDPLLDQHLF 203
|
|
| QoxB |
TIGR02882 |
cytochrome aa3 quinol oxidase, subunit I; This family (QoxB) encodes subunit I of the aa3-type ... |
13-218 |
2.02e-35 |
|
cytochrome aa3 quinol oxidase, subunit I; This family (QoxB) encodes subunit I of the aa3-type quinone oxidase, one of several bacterial terminal oxidases. This complex couples oxidation of reduced quinones with the reduction of molecular oxygen to water and the pumping of protons to form a proton gradient utilized for ATP production. aa3-type oxidases contain two heme a cofactors as well as copper atoms in the active site. [Energy metabolism, Electron transport]
Pssm-ID: 131928 Cd Length: 643 Bit Score: 131.90 E-value: 2.02e-35
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 13 GTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGgFGNWLVPLMIGAPDMAFPRMNNMSFWLLPPSF 92
Cdd:TIGR02882 68 GGIDALLMRAQLTVPDNKFLDAQHYNEIFTTHGVIMIIFMAMPFIIG-LMNIVVPLQIGARDVAFPVLNALSFWLFFAGA 146
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 93 LLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAISQYQTPLFVWAVL 172
Cdd:TIGR02882 147 MLFNISFVIGGSPDAGWTNYAPLAGPEFSPGVGVNYYLIALQISGIGTLMTGINFFVTILKMRAPGMKLMQMPMFTWTTL 226
|
170 180 190 200
....*....|....*....|....*....|....*....|....*.
gi 1779818174 173 ITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:TIGR02882 227 ITTLIIIFAFPVLTVALALMTTDRIFDTAFFTVAHGGMPMLWANLF 272
|
|
|
|
Name |
Accession |
Description |
Interval |
E-value |
| COX1 |
MTH00183 |
cytochrome c oxidase subunit I; Provisional |
1-218 |
4.71e-143 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177234 Cd Length: 516 Bit Score: 409.31 E-value: 4.71e-143
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:MTH00183 18 LYLVFGAWAGMVGTALSLLIRAELSQPGALLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLIPLMIGAPDMAFPRM 97
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:MTH00183 98 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 177
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:MTH00183 178 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 235
|
|
| COX1 |
MTH00077 |
cytochrome c oxidase subunit I; Provisional |
1-218 |
3.47e-142 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 214419 Cd Length: 514 Bit Score: 407.02 E-value: 3.47e-142
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:MTH00077 18 LYLVFGAWAGMVGTALSLLIRAELSQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 97
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:MTH00077 98 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTSINMKPPSMS 177
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:MTH00077 178 QYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPVLYQHLF 235
|
|
| COX1 |
MTH00103 |
cytochrome c oxidase subunit I; Validated |
1-218 |
4.90e-142 |
|
cytochrome c oxidase subunit I; Validated
Pssm-ID: 177165 Cd Length: 513 Bit Score: 406.58 E-value: 4.90e-142
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:MTH00103 18 LYLLFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 97
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:MTH00103 98 NNMSFWLLPPSFLLLLASSMVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAMS 177
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:MTH00103 178 QYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 235
|
|
| COX1 |
MTH00153 |
cytochrome c oxidase subunit I; Provisional |
1-218 |
3.13e-139 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177210 Cd Length: 511 Bit Score: 399.24 E-value: 3.13e-139
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:MTH00153 16 LYFIFGAWSGMVGTSLSLLIRAELGQPGSLIGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMLGAPDMAFPRM 95
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:MTH00153 96 NNMSFWLLPPSLTLLLSSSMVESGAGTGWTVYPPLSSNIAHSGASVDLAIFSLHLAGISSILGAINFITTIINMRSKGMT 175
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:MTH00153 176 LDRMPLFVWSVLITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLF 233
|
|
| COX1 |
MTH00116 |
cytochrome c oxidase subunit I; Provisional |
1-218 |
1.55e-135 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177177 Cd Length: 515 Bit Score: 389.84 E-value: 1.55e-135
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:MTH00116 18 LYLIFGAWAGMVGTALSLLIRAELGQPGTLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 97
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:MTH00116 98 NNMSFWLLPPSFLLLLASSTVEAGAGTGWTVYPPLAGNLAHAGASVDLAIFSLHLAGVSSILGAINFITTCINMKPPAMS 177
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:MTH00116 178 QYQTPLFVWSVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 235
|
|
| COX1 |
MTH00167 |
cytochrome c oxidase subunit I; Provisional |
1-218 |
1.21e-131 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177222 Cd Length: 512 Bit Score: 379.79 E-value: 1.21e-131
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:MTH00167 18 LYFIFGAWAGMVGTALSLLIRAELSQPGSLLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 97
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:MTH00167 98 NNMSFWLLPPSLLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLAIFSLHLAGVSSILGSINFITTIINMKPPGIT 177
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:MTH00167 178 QYQTPLFVWSILVTTILLLLSLPVLAAAITMLLTDRNLNTTFFDPAGGGDPILYQHLF 235
|
|
| Cyt_c_Oxidase_I |
cd01663 |
Cytochrome C oxidase subunit I. Cytochrome c oxidase (CcO), the terminal oxidase in the ... |
1-218 |
3.59e-129 |
|
Cytochrome C oxidase subunit I. Cytochrome c oxidase (CcO), the terminal oxidase in the respiratory chains of eukaryotes and most bacteria, is a multi-chain transmembrane protein located in the inner membrane of mitochondria and the cell membrane of prokaryotes. It catalyzes the reduction of O2 and simultaneously pumps protons across the membrane. The number of subunits varies from three to five in bacteria and up to 13 in mammalian mitochondria. Only subunits I and II are essential for function, but subunit III, which is also conserved, may play a role in assembly or oxygen delivery to the active site. Subunits I, II, and III of mammalian CcO are encoded within the mitochondrial genome and the remaining 10 subunits are encoded within the nuclear genome. Subunit I contains a heme-copper binuclear center (the active site where O2 is reduced to water) formed by a high-spin heme (heme a3) and a copper ion (CuB). It also contains a low-spin heme (heme a), believed to participate in the transfer of electrons to the binuclear center. For every reduction of an O2 molecule, eight protons are taken from the inside aqueous compartment and four electrons are taken from cytochrome c on the opposite side of the membrane. The four electrons and four of the protons are used in the reduction of O2; the four remaining protons are pumped across the membrane. This charge separation of four charges contributes to the electrochemical gradient used for ATP synthesis. Two proton channels, the D-pathway and K-pathway, leading to the binuclear center have been identified in subunit I. A well-defined pathway for the transfer of pumped protons beyond the binuclear center has not been identified. Electrons are transferred from cytochrome c (the electron donor) to heme a via the CuA binuclear site in subunit II, and directly from heme a to the binuclear center.
Pssm-ID: 238833 Cd Length: 488 Bit Score: 372.59 E-value: 3.59e-129
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:cd01663 9 LYLIFGLWSGLVGTSLSLLIRLELSQPGSQLGNDQLYNVIVTAHALIMIFFMVMPALIGGFGNWLVPLMIGAPDMAFPRL 88
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:cd01663 89 NNLSFWLLPPSLLLLLLSALVEGGAGTGWTVYPPLSSILAHSGPSVDLAIFSLHLAGISSILGAINFITTIFNMRAPGMT 168
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:cd01663 169 LEKMPLFVWSVLITAFLLLLSLPVLAGAITMLLTDRNFNTSFFDPAGGGDPILYQHLF 226
|
|
| COX1 |
MTH00142 |
cytochrome c oxidase subunit I; Provisional |
1-218 |
1.62e-120 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 214431 Cd Length: 511 Bit Score: 351.72 E-value: 1.62e-120
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:MTH00142 16 LYFLFGAWAGMVGTGLSLLIRAELGQPGSLLGDDQLYNVIVTAHAFVMIFFMVMPVMIGGFGNWLVPLMLGAPDMAFPRM 95
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:MTH00142 96 NNMSFWLLPPALLLLLSSAAVESGAGTGWTVYPPLSSNLAHSGGSVDLAIFSLHLAGVSSILGAINFITTVINMRAGGMK 175
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:MTH00142 176 FERVPLFVWSVKITAILLLLSLPVLAGAITMLLTDRNFNTSFFDPAGGGDPILYQHLF 233
|
|
| COX1 |
MTH00223 |
cytochrome c oxidase subunit I; Provisional |
1-218 |
1.15e-119 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177260 Cd Length: 512 Bit Score: 349.28 E-value: 1.15e-119
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:MTH00223 15 LYLIFGMWSGLVGTSLSLLIRAELGQPGALLGDDQLYNVIVTAHAFVMIFFLVMPMMIGGFGNWLVPLMLGAPDMAFPRL 94
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:MTH00223 95 NNMSFWLLPPSLYLLLSSSAVESGVGTGWTVYPPLSSNLAHAGPSVDLAIFSLHLAGVSSILGAINFITTIINMRSPGMQ 174
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:MTH00223 175 LERLPLFVWSVKVTAFLLLLSLPVLAGAITMLLTDRNFNTSFFDPAGGGDPILYQHLF 232
|
|
| COX1 |
MTH00037 |
cytochrome c oxidase subunit I; Provisional |
1-218 |
4.41e-110 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177112 Cd Length: 517 Bit Score: 325.25 E-value: 4.41e-110
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:MTH00037 18 LYLIFGAWAGMVGTAMSVIIRTELAQPGSLLQDDQIYNVIVTAHALVMIFFMVMPIMIGGFGNWLIPLMIGAPDMAFPRM 97
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:MTH00037 98 NNMSFWLIPPSFLLLLASAGVESGAGTGWTIYPPLSSNIAHAGGSVDLAIFSLHLAGASSILASINFITTIINMRTPGMT 177
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:MTH00037 178 FDRLPLFVWSVFITAFLLLLSLPVLAGAITMLLTDRNINTTFFDPAGGGDPILFQHLF 235
|
|
| COX1 |
MTH00007 |
cytochrome c oxidase subunit I; Validated |
1-218 |
2.29e-104 |
|
cytochrome c oxidase subunit I; Validated
Pssm-ID: 133649 Cd Length: 511 Bit Score: 310.30 E-value: 2.29e-104
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:MTH00007 15 LYFILGVWGGLLGTSMSLLIRIELGQPGAFLGSDQLYNTIVTAHAFLMIFFLVMPVFIGGFGNWLVPLMLGAPDMAFPRL 94
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:MTH00007 95 NNMSFWLLPPALILLVSSAAVEKGVGTGWTVYPPLASNLAHAGPSVDLAIFSLHLAGVSSILGAINFITTVINMRWKGLR 174
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:MTH00007 175 LERIPLFVWAVVITVVLLLLSLPVLAGAITMLLTDRNLNTSFFDPAGGGDPILYQHLF 232
|
|
| COX1 |
MTH00182 |
cytochrome c oxidase subunit I; Provisional |
1-218 |
1.33e-100 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 214451 Cd Length: 525 Bit Score: 300.97 E-value: 1.33e-100
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:MTH00182 20 LYLVFGAGAGMIGTAFSMLIRLELSAPGAMLGDDHLYNVIVTAHAFIMIFFLVMPVMIGGFGNWLVPLYIGAPDMAFPRL 99
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:MTH00182 100 NNISFWLLPPALILLLGSAFVEQGAGTGWTVYPPLSSIQAHSGGAVDMAIFSLHLAGVSSILGAINFITTIFNMRAPGVT 179
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:MTH00182 180 FNRLPLFVWSILITAFLLLLSLPVLAGAITMLLTDRNFNTTFFDPAGGGDPILFQHLF 237
|
|
| COX1 |
MTH00184 |
cytochrome c oxidase subunit I; Provisional |
1-218 |
2.11e-99 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177235 Cd Length: 519 Bit Score: 297.89 E-value: 2.11e-99
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:MTH00184 20 LYLLFGAFAGMIGTAFSMLIRLELSAPGSMLGDDHLYNVIVTAHAFVMIFFLVMPVMIGGFGNWFVPLYIGAPDMAFPRL 99
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:MTH00184 100 NNISFWLLPPALTLLLGSAFVEQGAGTGWTVYPPLSSIQAHSGGSVDMAIFSLHLAGISSILGAMNFITTIFNMRAPGIT 179
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:MTH00184 180 MDRMPLFVWSILVTTFLLLLSLPVLAGAITMLLTDRNFNTTFFDPAGGGDPILYQHLF 237
|
|
| COX1 |
MTH00079 |
cytochrome c oxidase subunit I; Provisional |
1-218 |
6.17e-94 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177148 Cd Length: 508 Bit Score: 283.50 E-value: 6.17e-94
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:MTH00079 19 LYFLFGLWSGMVGTSLSLIIRLELSKPGLLLGNGQLYNSVITAHAILMIFFMVMPSMIGGFGNWMLPLMLGAPDMSFPRL 98
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAgNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:MTH00079 99 NNLSFWLLPTSLFLILDSCFVDMGPGTSWTVYPPLS-TLGHPGSSVDLAIFSLHCAGISSILGGINFMVTTKNLRSSSIS 177
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:MTH00079 178 LEHMSLFVWTVFVTVFLLVLSLPVLAGAITMLLTDRNLNTSFFDPSTGGNPLLYQHLF 235
|
|
| COX1 |
MTH00026 |
cytochrome c oxidase subunit I; Provisional |
1-218 |
1.02e-89 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 164599 Cd Length: 534 Bit Score: 273.43 E-value: 1.02e-89
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:MTH00026 19 LYLVFGALSGAIGTAFSMLIRLELSSPGSMLGDDHLYNVIVTAHAFVMIFFLVMPTMIGGFGNWFVPLMIGAPDMAFPRL 98
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:MTH00026 99 NNISFWLLPPALFLLLGSSLVEQGAGTGWTVYPPLASIQAHSGGSVDMAIFSLHLAGLSSILGAMNFITTVMNMRTPGMT 178
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:MTH00026 179 MSRIPLFVWSVFITAILLLLSLPVLAGAITMLLTDRNFNTTFFDPAGGGDPILYQHLF 236
|
|
| Heme_Cu_Oxidase_I |
cd00919 |
Heme-copper oxidase subunit I. Heme-copper oxidases are transmembrane protein complexes in ... |
1-218 |
1.07e-79 |
|
Heme-copper oxidase subunit I. Heme-copper oxidases are transmembrane protein complexes in the respiratory chains of prokaryotes and mitochondria which catalyze the reduction of O2 and simultaneously pump protons across the membrane. The superfamily is diverse in terms of electron donors, subunit composition, and heme types. The number of subunits varies from three to five in bacteria and up to 13 in mammalian mitochondria. It has been proposed that Archaea acquired heme-copper oxidases through gene transfer from Gram-positive bacteria. Membership in the superfamily is defined by subunit I, which contains a heme-copper binuclear center (the active site where O2 is reduced to water) formed by a high-spin heme and a copper ion. It also contains a low-spin heme, believed to participate in the transfer of electrons to the binuclear center. Only subunit I is common to the entire superfamily. For every reduction of an O2 molecule, eight protons are taken from the inside aqueous compartment and four electrons are taken from the electron donor on the opposite side of the membrane. The four electrons and four of the protons are used in the reduction of O2; the four remaining protons are pumped across the membrane. This charge separation of four charges contributes to the electrochemical gradient used for ATP synthesis. Two proton channels, the D-pathway and K-pathway, leading to the binuclear center have been identified in subunit I of cytochrome c oxidase (CcO) and ubiquinol oxidase. A well-defined pathway for the transfer of pumped protons beyond the binuclear center has not been identified. Electron transfer occurs in two segments: from the electron donor to the low-spin heme, and from the low-spin heme to the binuclear center. The first segment can be a multi-step process and varies among the different families, while the second segment, a direct transfer, is consistent throughout the superfamily.
Pssm-ID: 238461 Cd Length: 463 Bit Score: 245.52 E-value: 1.07e-79
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPlMIGAPDMAFPRM 80
Cdd:cd00919 7 LYLIFAFVALLLGGLLALLIRLELATPGSLFLDPQLYNQLVTAHGVIMIFFFVMPAIFGGFGNLLPP-LIGARDLAFPRL 85
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:cd00919 86 NNLSFWLFPPGLLLLLSSVLVGGGAGTGWTFYPPLSTLSYSSGVGVDLAILGLHLAGVSSILGAINFITTILNMRAPGMT 165
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:cd00919 166 LDKMPLFVWSVLVTAILLLLALPVLAAALVMLLLDRNFGTSFFDPAGGGDPVLYQHLF 223
|
|
| CyoB |
COG0843 |
Heme/copper-type cytochrome/quinol oxidase, subunit 1 [Energy production and conversion]; |
1-218 |
7.29e-70 |
|
Heme/copper-type cytochrome/quinol oxidase, subunit 1 [Energy production and conversion];
Pssm-ID: 440605 Cd Length: 535 Bit Score: 222.31 E-value: 7.29e-70
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPiMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:COG0843 21 MYLVTAFVFLLIGGLLALLMRLQLAGPGLGLLSPETYNQLFTMHGTIMIFFFATP-FLAGFGNYLVPLQIGARDMAFPRL 99
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:COG0843 100 NALSFWLYLFGGLLLLISLFVGGAADVGWTFYPPLSGLEASPGVGVDLWLLGLALFGVGSILGGVNFIVTILKMRAPGMT 179
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:COG0843 180 LMRMPLFTWAALVTSILILLAFPVLAAALLLLLLDRSLGTHFFDPAGGGDPLLWQHLF 237
|
|
| COX1 |
MTH00048 |
cytochrome c oxidase subunit I; Provisional |
1-218 |
1.27e-63 |
|
cytochrome c oxidase subunit I; Provisional
Pssm-ID: 177123 Cd Length: 511 Bit Score: 205.30 E-value: 1.27e-63
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:MTH00048 19 IYTLLGVWSGFVGLSLSLLIRLNFLDPYYNVISLDVYNFLITNHGIIMIFFFLMPVLIGGFGNYLLPLLLGLSDLNLPRL 98
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASsgVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:MTH00048 99 NALSAWLLVPSIVFLLLS--MCLGAGVGWTFYPPLSSSLFSSSWGVDFLMFSLHLAGVSSLFGSINFICTIYSAFMTNVF 176
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 qYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:MTH00048 177 -SRTSIILWSYLFTSILLLLSLPVLAAAITMLLFDRNFGSAFFDPLGGGDPVLFQHMF 233
|
|
| Ubiquinol_Oxidase_I |
cd01662 |
Ubiquinol oxidase subunit I. Ubiquinol oxidase, the terminal oxidase in the respiratory ... |
1-218 |
6.05e-58 |
|
Ubiquinol oxidase subunit I. Ubiquinol oxidase, the terminal oxidase in the respiratory chains of aerobic bacteria, is a multi-chain transmembrane protein located in the cell membrane. It catalyzes the reduction of O2 and simultaneously pumps protons across the membrane. The number of subunits in ubiquinol oxidase varies from two to five. Subunit I contains a heme-copper binuclear center (the active site where O2 is reduced to water) formed by a high-spin heme and a copper ion. It also contains a low-spin heme, believed to participate in the transfer of electrons from ubiquinol to the binuclear center. For every reduction of an O2 molecule, eight protons are taken from the inside aqueous compartment and four electrons are taken from ubiquinol on the opposite side of the membrane. The four electrons and four of the protons are used in the reduction of O2; the four remaining protons are pumped across the membrane. This charge separation of four charges contributes to the electrochemical gradient used for ATP synthesis. Two proton channels, the D-pathway and K-pathway, leading to the binuclear center have been identified in subunit I. It is generally believed that the channels contain water molecules that act as 'proton wires' to transfer the protons. A well-defined pathway for the transfer of pumped protons beyond the binuclear center has not been identified. Electrons are believed to be transferred directly from ubiquinol (the electron donor) to the low-spin heme, and directly from the low-spin heme to the binuclear center.
Pssm-ID: 238832 Cd Length: 501 Bit Score: 190.48 E-value: 6.05e-58
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGgFGNWLVPLMIGAPDMAFPRM 80
Cdd:cd01662 13 MYIITAFVFFLRGGVDALLMRTQLALPGNDFLSPEHYNQIFTMHGTIMIFLFAMPLVFG-LMNYLVPLQIGARDVAFPRL 91
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:cd01662 92 NALSFWLFLFGGLLLNASLLIGGFPDAGWFAYPPLSGLEYSPGVGVDYWILGLQFSGIGTLLGAINFIVTILKMRAPGMT 171
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:cd01662 172 LMRMPIFTWTTLVTSILILFAFPVLTAALALLELDRYFGTHFFTNALGGNPMLWQHLF 229
|
|
| COX1 |
pfam00115 |
Cytochrome C and Quinol oxidase polypeptide I; Cytochrome c oxidase (E.C:7.1.1.9) is a key ... |
1-218 |
1.90e-44 |
|
Cytochrome C and Quinol oxidase polypeptide I; Cytochrome c oxidase (E.C:7.1.1.9) is a key enzyme in aerobic metabolism. Proton pumping haem-copper oxidases represent the terminal, energy-transfer enzymes of respiratory chains in prokaryotes and eukaryotes. The CuB-haem a3 (or haem o) binuclear centre, associated with the largest subunit I of cytochrome c and ubiquinol oxidases (E.C:1.10.3.11), is directly involved in the coupling between dioxygen reduction and proton pumping. Some terminal oxidases generate a transmembrane proton gradient across the plasma membrane (prokaryotes) or the mitochondrial inner membrane (eukaryotes). The enzyme complex consists of 3-4 subunits (prokaryotes) up to 13 polypeptides (mammals) of which only the catalytic subunit (equivalent to mammalian subunit I (COXI) is found in all haem-copper respiratory oxidases. The presence of a bimetallic centre (formed by a high-spin haem and copper B) as well as a low-spin haem, both ligated to six conserved histidine residues near the outer side of four transmembrane spans within CO I is common to all family members.
Pssm-ID: 459678 Cd Length: 432 Bit Score: 153.50 E-value: 1.90e-44
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 1 LYLVFGAWAGMVGTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPiMIGGFGNWLVPLMIGAPDMAFPRM 80
Cdd:pfam00115 5 LYLVTALVWFLVGGLLGLLIRLQLAFPGLNFLSPLTYNQLRTLHGNLMIFWFATP-FLFGFGNYLVPLMIGARDMAFPRL 83
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 81 NNMSFWLLPPSFLLLLASSGveaGAGTGWTVYPPLAGnlahagasVDLTIFSLHLAGVSSILGAINFITTIINMKPPAIS 160
Cdd:pfam00115 84 NALSFWLVVLGAVLLLASFG---GATTGWTEYPPLVG--------VDLWYIGLLLAGVSSLLGAINFIVTILKRRAPGMT 152
|
170 180 190 200 210
....*....|....*....|....*....|....*....|....*....|....*...
gi 1779818174 161 QyQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNttffdpAGGGDPILYQHLF 218
Cdd:pfam00115 153 L-RMPLFVWAILATAILILLAFPVLAAALLLLLLDRSLG------AGGGDPLLDQHLF 203
|
|
| PRK15017 |
PRK15017 |
cytochrome o ubiquinol oxidase subunit I; Provisional |
37-217 |
1.46e-35 |
|
cytochrome o ubiquinol oxidase subunit I; Provisional
Pssm-ID: 184978 Cd Length: 663 Bit Score: 132.37 E-value: 1.46e-35
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 37 YNVIVTAHAFIMIFFMVMPIMIGgFGNWLVPLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLA 116
Cdd:PRK15017 99 YDQIFTAHGVIMIFFVAMPFVIG-LMNLVVPLQIGARDVAFPFLNNLSFWFTVVGVILVNVSLGVGEFAQTGWLAYPPLS 177
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 117 GNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAISQYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDR 196
Cdd:PRK15017 178 GIEYSPGVGVDYWIWSLQLSGIGTTLTGINFFVTILKMRAPGMTMFKMPVFTWASLCANVLIIASFPILTVTVALLTLDR 257
|
170 180
....*....|....*....|.
gi 1779818174 197 NLNTTFFDPAGGGDPILYQHL 217
Cdd:PRK15017 258 YLGTHFFTNDMGGNMMMYINL 278
|
|
| QoxB |
TIGR02882 |
cytochrome aa3 quinol oxidase, subunit I; This family (QoxB) encodes subunit I of the aa3-type ... |
13-218 |
2.02e-35 |
|
cytochrome aa3 quinol oxidase, subunit I; This family (QoxB) encodes subunit I of the aa3-type quinone oxidase, one of several bacterial terminal oxidases. This complex couples oxidation of reduced quinones with the reduction of molecular oxygen to water and the pumping of protons to form a proton gradient utilized for ATP production. aa3-type oxidases contain two heme a cofactors as well as copper atoms in the active site. [Energy metabolism, Electron transport]
Pssm-ID: 131928 Cd Length: 643 Bit Score: 131.90 E-value: 2.02e-35
10 20 30 40 50 60 70 80
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 13 GTALSLLIRAELAQPGALLGDDQIYNVIVTAHAFIMIFFMVMPIMIGgFGNWLVPLMIGAPDMAFPRMNNMSFWLLPPSF 92
Cdd:TIGR02882 68 GGIDALLMRAQLTVPDNKFLDAQHYNEIFTTHGVIMIIFMAMPFIIG-LMNIVVPLQIGARDVAFPVLNALSFWLFFAGA 146
|
90 100 110 120 130 140 150 160
....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1779818174 93 LLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGVSSILGAINFITTIINMKPPAISQYQTPLFVWAVL 172
Cdd:TIGR02882 147 MLFNISFVIGGSPDAGWTNYAPLAGPEFSPGVGVNYYLIALQISGIGTLMTGINFFVTILKMRAPGMKLMQMPMFTWTTL 226
|
170 180 190 200
....*....|....*....|....*....|....*....|....*.
gi 1779818174 173 ITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLF 218
Cdd:TIGR02882 227 ITTLIIIFAFPVLTVALALMTTDRIFDTAFFTVAHGGMPMLWANLF 272
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