Coenzyme Q-binding protein COQ10p and similar proteins; Coenzyme Q-binding protein COQ10p and similar proteins. COQ10p is a hydrophobic protein located in the inner membrane of mitochondria that binds coenzyme Q (CoQ), also called ubiquinone, which is an essential electron carrier of the respiratory chain. Deletion of the gene encoding COQ10p (COQ10 or YOL008W) in Saccharomyces cerevisiae results in respiratory defect because of the inability to oxidize NADH and succinate. COQ10p may function in the delivery of CoQ (Q6 in budding yeast) to its proper location for electron transport. The human homolog, called Q-binding protein COQ10 homolog A (COQ10A), is able to fully complement for the absence of COQ10p in fission yeast. Human COQ10A also has a splice variant COQ10B. COQ10p belongs to the SRPBCC (START/RHO_alpha_C/PITP/Bet_v1/CoxG/CalC) domain superfamily of proteins that bind hydrophobic ligands. SRPBCC domains have a deep hydrophobic ligand-binding pocket and they bind diverse ligands.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 564357777  89 YSERRIMGYSMQEMFEVVSNVQEYREFVPWCKKSLVVSSRKGHLKAQLEVGFPPVLERYTSAVSMVKPHMVKAVCTDGkL 168
Cdd:cd07813    1 YSKSRLVPYSAEQMFDLVADVERYPEFLPWCTASRVLERDEDELEAELTVGFGGIRESFTSRVTLVPPESIEAELVDG-P 79

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 564357777 169 FNHLETIWRFSPGIpayPRTCTVDFSISFEFRSLLHSQLATMFFDEVVKQNVAAFERRA 227
Cdd:cd07813   80 FKHLEGEWRFKPLG---ENACKVEFDLEFEFKSRLLEALAGLVFDEVAKKMVDAFEKRA 135

Coenzyme Q-binding protein COQ10p and similar proteins; Coenzyme Q-binding protein COQ10p and similar proteins. COQ10p is a hydrophobic protein located in the inner membrane of mitochondria that binds coenzyme Q (CoQ), also called ubiquinone, which is an essential electron carrier of the respiratory chain. Deletion of the gene encoding COQ10p (COQ10 or YOL008W) in Saccharomyces cerevisiae results in respiratory defect because of the inability to oxidize NADH and succinate. COQ10p may function in the delivery of CoQ (Q6 in budding yeast) to its proper location for electron transport. The human homolog, called Q-binding protein COQ10 homolog A (COQ10A), is able to fully complement for the absence of COQ10p in fission yeast. Human COQ10A also has a splice variant COQ10B. COQ10p belongs to the SRPBCC (START/RHO_alpha_C/PITP/Bet_v1/CoxG/CalC) domain superfamily of proteins that bind hydrophobic ligands. SRPBCC domains have a deep hydrophobic ligand-binding pocket and they bind diverse ligands.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 564357777  89 YSERRIMGYSMQEMFEVVSNVQEYREFVPWCKKSLVVSSRKGHLKAQLEVGFPPVLERYTSAVSMVKPHMVKAVCTDGkL 168
Cdd:cd07813    1 YSKSRLVPYSAEQMFDLVADVERYPEFLPWCTASRVLERDEDELEAELTVGFGGIRESFTSRVTLVPPESIEAELVDG-P 79

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 564357777 169 FNHLETIWRFSPGIpayPRTCTVDFSISFEFRSLLHSQLATMFFDEVVKQNVAAFERRA 227
Cdd:cd07813   80 FKHLEGEWRFKPLG---ENACKVEFDLEFEFKSRLLEALAGLVFDEVAKKMVDAFEKRA 135

Polyketide cyclase / dehydrase and lipid transport; This family contains polyketide cylcases/dehydrases which are enzymes involved in polyketide synthesis. The family also includes proteins which are involved in the binding/transport of lipids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 564357777   95 MGYSMQEMFEVVSNVQEYREFVPWCKKSLVVSSRKGHlkAQLEVGFPPVLERYTSAVSMVKPHMVKAVCTDGkLFNHLET 174
Cdd:pfam03364   1 VPAPAEQVWALVTDVERYPEFLPWCKSVEVLERDGSL--ADWRVAFGGLRRSFTARVTLQPPERIEMVLVDG-DFKRLEG 77

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|
gi 564357777  175 IWRFSPGIPAypRTCTVDFSISFEFRSLLHSQLATMFFDEVVKQNVAAFE 224
Cdd:pfam03364  78 SWRFEPGGPG--TRVKVTLELDFEFASPLPGALLGFVFRRVLRTLLEAFR 125

Coenzyme Q-binding protein COQ10p and similar proteins; Coenzyme Q-binding protein COQ10p and similar proteins. COQ10p is a hydrophobic protein located in the inner membrane of mitochondria that binds coenzyme Q (CoQ), also called ubiquinone, which is an essential electron carrier of the respiratory chain. Deletion of the gene encoding COQ10p (COQ10 or YOL008W) in Saccharomyces cerevisiae results in respiratory defect because of the inability to oxidize NADH and succinate. COQ10p may function in the delivery of CoQ (Q6 in budding yeast) to its proper location for electron transport. The human homolog, called Q-binding protein COQ10 homolog A (COQ10A), is able to fully complement for the absence of COQ10p in fission yeast. Human COQ10A also has a splice variant COQ10B. COQ10p belongs to the SRPBCC (START/RHO_alpha_C/PITP/Bet_v1/CoxG/CalC) domain superfamily of proteins that bind hydrophobic ligands. SRPBCC domains have a deep hydrophobic ligand-binding pocket and they bind diverse ligands.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 564357777  89 YSERRIMGYSMQEMFEVVSNVQEYREFVPWCKKSLVVSSRKGHLKAQLEVGFPPVLERYTSAVSMVKPHMVKAVCTDGkL 168
Cdd:cd07813    1 YSKSRLVPYSAEQMFDLVADVERYPEFLPWCTASRVLERDEDELEAELTVGFGGIRESFTSRVTLVPPESIEAELVDG-P 79

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 564357777 169 FNHLETIWRFSPGIpayPRTCTVDFSISFEFRSLLHSQLATMFFDEVVKQNVAAFERRA 227
Cdd:cd07813   80 FKHLEGEWRFKPLG---ENACKVEFDLEFEFKSRLLEALAGLVFDEVAKKMVDAFEKRA 135

Polyketide cyclase / dehydrase and lipid transport; This family contains polyketide cylcases/dehydrases which are enzymes involved in polyketide synthesis. The family also includes proteins which are involved in the binding/transport of lipids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 564357777   95 MGYSMQEMFEVVSNVQEYREFVPWCKKSLVVSSRKGHlkAQLEVGFPPVLERYTSAVSMVKPHMVKAVCTDGkLFNHLET 174
Cdd:pfam03364   1 VPAPAEQVWALVTDVERYPEFLPWCKSVEVLERDGSL--ADWRVAFGGLRRSFTARVTLQPPERIEMVLVDG-DFKRLEG 77

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|
gi 564357777  175 IWRFSPGIPAypRTCTVDFSISFEFRSLLHSQLATMFFDEVVKQNVAAFE 224
Cdd:pfam03364  78 SWRFEPGGPG--TRVKVTLELDFEFASPLPGALLGFVFRRVLRTLLEAFR 125

START/RHO_alpha_C/PITP/Bet_v1/CoxG/CalC (SRPBCC) ligand-binding domain superfamily; SRPBCC domains have a deep hydrophobic ligand-binding pocket; they bind diverse ligands. Included in this superfamily are the steroidogenic acute regulatory protein (StAR)-related lipid transfer (START) domains of mammalian STARD1-STARD15, and the C-terminal catalytic domains of the alpha oxygenase subunit of Rieske-type non-heme iron aromatic ring-hydroxylating oxygenases (RHOs_alpha_C), as well as the SRPBCC domains of phosphatidylinositol transfer proteins (PITPs), Bet v 1 (the major pollen allergen of white birch, Betula verrucosa), CoxG, CalC, and related proteins. Other members of this superfamily include PYR/PYL/RCAR plant proteins, the aromatase/cyclase (ARO/CYC) domains of proteins such as Streptomyces glaucescens tetracenomycin, and the SRPBCC domains of Streptococcus mutans Smu.440 and related proteins.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 564357777  98 SMQEMFEVVSNVQEYREFVPWCKKSLVVSSRKGHLKAQLEVGFPPVLERYTSA--VSMVKPHMVKAVCTDGKLFNHLETI 175
Cdd:cd07812   10 PPEAVWDLLSDPERWPEWSPGLERVEVLGGGEGGVGARFVGGRKGGRRLTLTSevTEVDPPRPGRFRVTGGGGGVDGTGE 89

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*.
gi 564357777 176 WRFSPgIPayPRTCTVDFSISFEFRSLLhSQLATMFFDEVVKQNVAAFERRAATKF 231
Cdd:cd07812   90 WRLEP-EG--DGGTRVTYTVEYDPPGPL-LKVFALLLAGALKRELAALLRALKARL 141