hypothetical protein [Halobiforma lacisalsi]
beta-propeller fold lactonase family protein( domain architecture ID 1009710)
beta-propeller fold lactonase family protein similar to hydrazine synthase beta subunit from Candidatus Kuenenia stuttgartiensis, a component of the hydrazine synthase complex that catalyzes the condensation of nitric oxide (NO) with ammonium to form hydrazine
List of domain hits
Name | Accession | Description | Interval | E-value | |||||
PQQ_ABC_repeats super family | cl37339 | PQQ-dependent catabolism-associated beta-propeller protein; Members of this protein family ... |
45-290 | 2.92e-31 | |||||
PQQ-dependent catabolism-associated beta-propeller protein; Members of this protein family consist of seven repeats each of the YVTN family beta-propeller repeat (see TIGR02276). Members occur invariably as part of a transport operon that is associated with PQQ-dependent catabolism of alcohols such as phenylethanol. The actual alignment was detected with superfamily member TIGR03866: Pssm-ID: 274824 [Multi-domain] Cd Length: 310 Bit Score: 118.60 E-value: 2.92e-31
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Name | Accession | Description | Interval | E-value | ||||||
PQQ_ABC_repeats | TIGR03866 | PQQ-dependent catabolism-associated beta-propeller protein; Members of this protein family ... |
45-290 | 2.92e-31 | ||||||
PQQ-dependent catabolism-associated beta-propeller protein; Members of this protein family consist of seven repeats each of the YVTN family beta-propeller repeat (see TIGR02276). Members occur invariably as part of a transport operon that is associated with PQQ-dependent catabolism of alcohols such as phenylethanol. Pssm-ID: 274824 [Multi-domain] Cd Length: 310 Bit Score: 118.60 E-value: 2.92e-31
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YncE | COG3391 | DNA-binding beta-propeller fold protein YncE [General function prediction only]; |
42-233 | 5.83e-28 | ||||||
DNA-binding beta-propeller fold protein YncE [General function prediction only]; Pssm-ID: 442618 [Multi-domain] Cd Length: 237 Bit Score: 108.24 E-value: 5.83e-28
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Lactonase | pfam10282 | Lactonase, 7-bladed beta-propeller; This entry contains bacterial 6-phosphogluconolactonases ... |
5-283 | 9.19e-10 | ||||||
Lactonase, 7-bladed beta-propeller; This entry contains bacterial 6-phosphogluconolactonases (6PGL)YbhE-type (EC:3.1.1.31) which hydrolyse 6-phosphogluconolactone to 6-phosphogluconate. The entry also contains the fungal muconate lactonising enzyme carboxy-cis,cis-muconate cyclase (EC:5.5.1.5) and muconate cycloisomerase (EC:5.5.1.1), which convert cis,cis-muconates to muconolactones and vice versa as part of the microbial beta-ketoadipate pathway. Structures of proteins in this family have revealed a 7-bladed beta-propeller fold. Pssm-ID: 431196 [Multi-domain] Cd Length: 340 Bit Score: 58.77 E-value: 9.19e-10
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8prop_heme_binding_protein | cd20718 | eight-bladed beta-propeller heme-binding domain in cytochrome cd1 and similar proteins; ... |
98-304 | 1.76e-08 | ||||||
eight-bladed beta-propeller heme-binding domain in cytochrome cd1 and similar proteins; Members here contain an 8-bladed beta-propeller heme-binding domain in cytochrome cd1 (nitrite reductase) and similar proteins including NirN and NirF. During denitrification, nitrate (Nar), nitrite (Nir), nitric oxide (Nor), and nitrous oxide (Nos) reductases catalyze the reaction cascade of NO(3-)-> NO(2-)-> NO -> N2O -> N2. The integral membrane proteins NorC, NorB, and NosR form the core assembly platform that binds the nitrate reductase NarGHI and the periplasmic nitrite reductase NirS via its maturation factor NirF. NirN and NirF form a stable complex with the nitrite reductase NirS during enzyme maturation. NirF is involved in heme d1 insertion. Pssm-ID: 467720 [Multi-domain] Cd Length: 380 Bit Score: 55.04 E-value: 1.76e-08
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Name | Accession | Description | Interval | E-value | ||||||
PQQ_ABC_repeats | TIGR03866 | PQQ-dependent catabolism-associated beta-propeller protein; Members of this protein family ... |
45-290 | 2.92e-31 | ||||||
PQQ-dependent catabolism-associated beta-propeller protein; Members of this protein family consist of seven repeats each of the YVTN family beta-propeller repeat (see TIGR02276). Members occur invariably as part of a transport operon that is associated with PQQ-dependent catabolism of alcohols such as phenylethanol. Pssm-ID: 274824 [Multi-domain] Cd Length: 310 Bit Score: 118.60 E-value: 2.92e-31
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YncE | COG3391 | DNA-binding beta-propeller fold protein YncE [General function prediction only]; |
42-233 | 5.83e-28 | ||||||
DNA-binding beta-propeller fold protein YncE [General function prediction only]; Pssm-ID: 442618 [Multi-domain] Cd Length: 237 Bit Score: 108.24 E-value: 5.83e-28
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YncE | COG3391 | DNA-binding beta-propeller fold protein YncE [General function prediction only]; |
129-284 | 1.60e-27 | ||||||
DNA-binding beta-propeller fold protein YncE [General function prediction only]; Pssm-ID: 442618 [Multi-domain] Cd Length: 237 Bit Score: 107.09 E-value: 1.60e-27
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YncE | COG3391 | DNA-binding beta-propeller fold protein YncE [General function prediction only]; |
3-148 | 1.74e-24 | ||||||
DNA-binding beta-propeller fold protein YncE [General function prediction only]; Pssm-ID: 442618 [Multi-domain] Cd Length: 237 Bit Score: 99.00 E-value: 1.74e-24
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YncE | COG3391 | DNA-binding beta-propeller fold protein YncE [General function prediction only]; |
175-301 | 3.47e-24 | ||||||
DNA-binding beta-propeller fold protein YncE [General function prediction only]; Pssm-ID: 442618 [Multi-domain] Cd Length: 237 Bit Score: 98.23 E-value: 3.47e-24
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Vgb | COG4257 | Streptogramin lyase [Defense mechanisms]; |
25-283 | 2.96e-17 | ||||||
Streptogramin lyase [Defense mechanisms]; Pssm-ID: 443399 [Multi-domain] Cd Length: 270 Bit Score: 79.68 E-value: 2.96e-17
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Pgl | COG2706 | 6-phosphogluconolactonase, cycloisomerase 2 family [Carbohydrate transport and metabolism]; |
9-283 | 9.73e-16 | ||||||
6-phosphogluconolactonase, cycloisomerase 2 family [Carbohydrate transport and metabolism]; Pssm-ID: 442025 [Multi-domain] Cd Length: 352 Bit Score: 76.48 E-value: 9.73e-16
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Vgb | COG4257 | Streptogramin lyase [Defense mechanisms]; |
3-233 | 1.68e-15 | ||||||
Streptogramin lyase [Defense mechanisms]; Pssm-ID: 443399 [Multi-domain] Cd Length: 270 Bit Score: 74.67 E-value: 1.68e-15
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YncE | COG3391 | DNA-binding beta-propeller fold protein YncE [General function prediction only]; |
197-301 | 4.18e-14 | ||||||
DNA-binding beta-propeller fold protein YncE [General function prediction only]; Pssm-ID: 442618 [Multi-domain] Cd Length: 237 Bit Score: 70.49 E-value: 4.18e-14
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Vgb | COG4257 | Streptogramin lyase [Defense mechanisms]; |
18-192 | 4.63e-13 | ||||||
Streptogramin lyase [Defense mechanisms]; Pssm-ID: 443399 [Multi-domain] Cd Length: 270 Bit Score: 67.74 E-value: 4.63e-13
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PQQ_ABC_repeats | TIGR03866 | PQQ-dependent catabolism-associated beta-propeller protein; Members of this protein family ... |
35-171 | 2.10e-10 | ||||||
PQQ-dependent catabolism-associated beta-propeller protein; Members of this protein family consist of seven repeats each of the YVTN family beta-propeller repeat (see TIGR02276). Members occur invariably as part of a transport operon that is associated with PQQ-dependent catabolism of alcohols such as phenylethanol. Pssm-ID: 274824 [Multi-domain] Cd Length: 310 Bit Score: 60.44 E-value: 2.10e-10
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YvrE | COG3386 | Sugar lactone lactonase YvrE [Carbohydrate transport and metabolism]; Sugar lactone lactonase ... |
3-219 | 3.98e-10 | ||||||
Sugar lactone lactonase YvrE [Carbohydrate transport and metabolism]; Sugar lactone lactonase YvrE is part of the Pathway/BioSystem: Non-phosphorylated Entner-Doudoroff pathway Pssm-ID: 442613 [Multi-domain] Cd Length: 266 Bit Score: 59.14 E-value: 3.98e-10
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Lactonase | pfam10282 | Lactonase, 7-bladed beta-propeller; This entry contains bacterial 6-phosphogluconolactonases ... |
5-283 | 9.19e-10 | ||||||
Lactonase, 7-bladed beta-propeller; This entry contains bacterial 6-phosphogluconolactonases (6PGL)YbhE-type (EC:3.1.1.31) which hydrolyse 6-phosphogluconolactone to 6-phosphogluconate. The entry also contains the fungal muconate lactonising enzyme carboxy-cis,cis-muconate cyclase (EC:5.5.1.5) and muconate cycloisomerase (EC:5.5.1.1), which convert cis,cis-muconates to muconolactones and vice versa as part of the microbial beta-ketoadipate pathway. Structures of proteins in this family have revealed a 7-bladed beta-propeller fold. Pssm-ID: 431196 [Multi-domain] Cd Length: 340 Bit Score: 58.77 E-value: 9.19e-10
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8prop_heme_binding_protein | cd20718 | eight-bladed beta-propeller heme-binding domain in cytochrome cd1 and similar proteins; ... |
98-304 | 1.76e-08 | ||||||
eight-bladed beta-propeller heme-binding domain in cytochrome cd1 and similar proteins; Members here contain an 8-bladed beta-propeller heme-binding domain in cytochrome cd1 (nitrite reductase) and similar proteins including NirN and NirF. During denitrification, nitrate (Nar), nitrite (Nir), nitric oxide (Nor), and nitrous oxide (Nos) reductases catalyze the reaction cascade of NO(3-)-> NO(2-)-> NO -> N2O -> N2. The integral membrane proteins NorC, NorB, and NosR form the core assembly platform that binds the nitrate reductase NarGHI and the periplasmic nitrite reductase NirS via its maturation factor NirF. NirN and NirF form a stable complex with the nitrite reductase NirS during enzyme maturation. NirF is involved in heme d1 insertion. Pssm-ID: 467720 [Multi-domain] Cd Length: 380 Bit Score: 55.04 E-value: 1.76e-08
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8prop_hemeD1_NirF | cd20778 | eight-bladed heme d1-binding beta-propeller domain in cytochrome cd1 nitrate reductase NirF; ... |
185-304 | 3.27e-08 | ||||||
eight-bladed heme d1-binding beta-propeller domain in cytochrome cd1 nitrate reductase NirF; Denitrification is a process that enables biofilm formation of the opportunistic human pathogen Pseudomonas aeruginosa, making it more resilient to antibiotics and highly adaptable to different habitats. During denitrification, nitrate (Nar), nitrite (Nir), nitric oxide (Nor), and nitrous oxide (Nos) reductases catalyze the reaction cascade of NO3- -> NO2- -> NO -> N2O -> N2. The integral membrane proteins NorC, NorB, and NosR form the core assembly platform that binds the nitrate reductase NarGHI and the periplasmic cytochrome cd1 (nitrite reductase) NirS via its maturation factor NirF. The nirFDLGHJE genes encode proteins required for heme d1 biosynthesis. NirS, NirF, and NirN, the monomeric dihydro-heme d1 dehydrogenase form a stable complex during nitrite reductase maturation. The nitrite reductase NirS is bound to the denitrification supercomplex via NorB, while the electron donor system NirM and the enzyme maturation machinery NirN-NirF-NirQ, interacting with NirS, are bound via NorC. Pssm-ID: 467722 [Multi-domain] Cd Length: 381 Bit Score: 54.21 E-value: 3.27e-08
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8prop_heme_binding_protein | cd20718 | eight-bladed beta-propeller heme-binding domain in cytochrome cd1 and similar proteins; ... |
57-296 | 3.51e-08 | ||||||
eight-bladed beta-propeller heme-binding domain in cytochrome cd1 and similar proteins; Members here contain an 8-bladed beta-propeller heme-binding domain in cytochrome cd1 (nitrite reductase) and similar proteins including NirN and NirF. During denitrification, nitrate (Nar), nitrite (Nir), nitric oxide (Nor), and nitrous oxide (Nos) reductases catalyze the reaction cascade of NO(3-)-> NO(2-)-> NO -> N2O -> N2. The integral membrane proteins NorC, NorB, and NosR form the core assembly platform that binds the nitrate reductase NarGHI and the periplasmic nitrite reductase NirS via its maturation factor NirF. NirN and NirF form a stable complex with the nitrite reductase NirS during enzyme maturation. NirF is involved in heme d1 insertion. Pssm-ID: 467720 [Multi-domain] Cd Length: 380 Bit Score: 54.27 E-value: 3.51e-08
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Cytochrom_D1 | pfam02239 | Cytochrome D1 heme domain; Cytochrome cd1 (nitrite reductase) catalyzes the conversion of ... |
101-283 | 1.58e-06 | ||||||
Cytochrome D1 heme domain; Cytochrome cd1 (nitrite reductase) catalyzes the conversion of nitrite to nitric oxide in the nitrogen cycle. This family represents the d1 heme binding domain of cytochrome cd1, in which His/Tyr side chains ligate the d1 heme iron of the active site in the oxidized state. Pssm-ID: 366994 [Multi-domain] Cd Length: 368 Bit Score: 49.00 E-value: 1.58e-06
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NHL_like_5 | cd14963 | Uncharacterized NHL-repeat domain in bacterial proteins; The NHL (NCL-1, HT2A and LIN-41) ... |
3-104 | 3.68e-06 | ||||||
Uncharacterized NHL-repeat domain in bacterial proteins; The NHL (NCL-1, HT2A and LIN-41) repeat is found in multiple tandem copies, typically as 6 instances. It is about 40 residues long and resembles the WD repeat and other beta-propeller structures. Pssm-ID: 271333 [Multi-domain] Cd Length: 268 Bit Score: 47.29 E-value: 3.68e-06
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beta_rpt_yvtn | TIGR02276 | 40-residue YVTN family beta-propeller repeat; This repeat of about 40 amino acids is found in ... |
212-259 | 4.64e-06 | ||||||
40-residue YVTN family beta-propeller repeat; This repeat of about 40 amino acids is found in up to 14 copies per protein. Archaea Methanosarcina mazei and Methanosarcina acetivorans each have over 10 genes that encode tandem copies of this repeat, which is also found in other species. PSIPRED predicts with high confidence that each 40-residue repeats contains four beta strands. This model overlaps somewhat with the NHL repeat (pfam01436) and also shows sequence similarity to the WD domain, G-beta repeat (pfam00400). Pssm-ID: 213697 [Multi-domain] Cd Length: 42 Bit Score: 42.67 E-value: 4.64e-06
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beta_rpt_yvtn | TIGR02276 | 40-residue YVTN family beta-propeller repeat; This repeat of about 40 amino acids is found in ... |
261-301 | 8.79e-06 | ||||||
40-residue YVTN family beta-propeller repeat; This repeat of about 40 amino acids is found in up to 14 copies per protein. Archaea Methanosarcina mazei and Methanosarcina acetivorans each have over 10 genes that encode tandem copies of this repeat, which is also found in other species. PSIPRED predicts with high confidence that each 40-residue repeats contains four beta strands. This model overlaps somewhat with the NHL repeat (pfam01436) and also shows sequence similarity to the WD domain, G-beta repeat (pfam00400). Pssm-ID: 213697 [Multi-domain] Cd Length: 42 Bit Score: 41.90 E-value: 8.79e-06
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Vgb | COG4257 | Streptogramin lyase [Defense mechanisms]; |
18-117 | 1.84e-05 | ||||||
Streptogramin lyase [Defense mechanisms]; Pssm-ID: 443399 [Multi-domain] Cd Length: 270 Bit Score: 45.40 E-value: 1.84e-05
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8prop_heme_binding_protein | cd20718 | eight-bladed beta-propeller heme-binding domain in cytochrome cd1 and similar proteins; ... |
3-256 | 5.87e-05 | ||||||
eight-bladed beta-propeller heme-binding domain in cytochrome cd1 and similar proteins; Members here contain an 8-bladed beta-propeller heme-binding domain in cytochrome cd1 (nitrite reductase) and similar proteins including NirN and NirF. During denitrification, nitrate (Nar), nitrite (Nir), nitric oxide (Nor), and nitrous oxide (Nos) reductases catalyze the reaction cascade of NO(3-)-> NO(2-)-> NO -> N2O -> N2. The integral membrane proteins NorC, NorB, and NosR form the core assembly platform that binds the nitrate reductase NarGHI and the periplasmic nitrite reductase NirS via its maturation factor NirF. NirN and NirF form a stable complex with the nitrite reductase NirS during enzyme maturation. NirF is involved in heme d1 insertion. Pssm-ID: 467720 [Multi-domain] Cd Length: 380 Bit Score: 44.25 E-value: 5.87e-05
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WD40 | COG2319 | WD40 repeat [General function prediction only]; |
2-271 | 1.16e-04 | ||||||
WD40 repeat [General function prediction only]; Pssm-ID: 441893 [Multi-domain] Cd Length: 403 Bit Score: 43.36 E-value: 1.16e-04
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8prop_hemeD1_NirF | cd20778 | eight-bladed heme d1-binding beta-propeller domain in cytochrome cd1 nitrate reductase NirF; ... |
10-91 | 1.75e-04 | ||||||
eight-bladed heme d1-binding beta-propeller domain in cytochrome cd1 nitrate reductase NirF; Denitrification is a process that enables biofilm formation of the opportunistic human pathogen Pseudomonas aeruginosa, making it more resilient to antibiotics and highly adaptable to different habitats. During denitrification, nitrate (Nar), nitrite (Nir), nitric oxide (Nor), and nitrous oxide (Nos) reductases catalyze the reaction cascade of NO3- -> NO2- -> NO -> N2O -> N2. The integral membrane proteins NorC, NorB, and NosR form the core assembly platform that binds the nitrate reductase NarGHI and the periplasmic cytochrome cd1 (nitrite reductase) NirS via its maturation factor NirF. The nirFDLGHJE genes encode proteins required for heme d1 biosynthesis. NirS, NirF, and NirN, the monomeric dihydro-heme d1 dehydrogenase form a stable complex during nitrite reductase maturation. The nitrite reductase NirS is bound to the denitrification supercomplex via NorB, while the electron donor system NirM and the enzyme maturation machinery NirN-NirF-NirQ, interacting with NirS, are bound via NorC. Pssm-ID: 467722 [Multi-domain] Cd Length: 381 Bit Score: 42.66 E-value: 1.75e-04
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NHL_like_5 | cd14963 | Uncharacterized NHL-repeat domain in bacterial proteins; The NHL (NCL-1, HT2A and LIN-41) ... |
2-113 | 2.94e-04 | ||||||
Uncharacterized NHL-repeat domain in bacterial proteins; The NHL (NCL-1, HT2A and LIN-41) repeat is found in multiple tandem copies, typically as 6 instances. It is about 40 residues long and resembles the WD repeat and other beta-propeller structures. Pssm-ID: 271333 [Multi-domain] Cd Length: 268 Bit Score: 41.51 E-value: 2.94e-04
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8prop_hemeD1_cyt_cd1-like | cd20782 | cytochrome cd1 nitrate reductase eight-bladed heme d1-binding beta-propeller domain and ... |
57-264 | 3.09e-04 | ||||||
cytochrome cd1 nitrate reductase eight-bladed heme d1-binding beta-propeller domain and similar proteins; Cytochrome cd1 (cyt cd1) nitrite reductase catalyzes in vitro the reduction of molecular oxygen to water and the reduction of nitrite to nitric oxide). It is a dimer of two identical subunits of 60 kDa, each containing one c and one d1 heme group. The c heme is the electron accepting pole of the molecule and is reduced in vitro by either azurin or cytochrome c551. The d1 heme is the site where nitrite, and oxygen reduction occur. NiR is a key denitrification enzyme, which controls the rate of the production of toxic nitric oxide (NO) and ultimately regulates the release of NO into the atmosphere. The two types of heme are located in separate domains whose arrangement suggests a mechanism requiring domain movement during catalysis. Pssm-ID: 467726 [Multi-domain] Cd Length: 415 Bit Score: 42.08 E-value: 3.09e-04
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8prop_hemeD1_cyt_cd1-like | cd20782 | cytochrome cd1 nitrate reductase eight-bladed heme d1-binding beta-propeller domain and ... |
18-90 | 2.43e-03 | ||||||
cytochrome cd1 nitrate reductase eight-bladed heme d1-binding beta-propeller domain and similar proteins; Cytochrome cd1 (cyt cd1) nitrite reductase catalyzes in vitro the reduction of molecular oxygen to water and the reduction of nitrite to nitric oxide). It is a dimer of two identical subunits of 60 kDa, each containing one c and one d1 heme group. The c heme is the electron accepting pole of the molecule and is reduced in vitro by either azurin or cytochrome c551. The d1 heme is the site where nitrite, and oxygen reduction occur. NiR is a key denitrification enzyme, which controls the rate of the production of toxic nitric oxide (NO) and ultimately regulates the release of NO into the atmosphere. The two types of heme are located in separate domains whose arrangement suggests a mechanism requiring domain movement during catalysis. Pssm-ID: 467726 [Multi-domain] Cd Length: 415 Bit Score: 39.39 E-value: 2.43e-03
|
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Vgb | COG4257 | Streptogramin lyase [Defense mechanisms]; |
158-301 | 2.54e-03 | ||||||
Streptogramin lyase [Defense mechanisms]; Pssm-ID: 443399 [Multi-domain] Cd Length: 270 Bit Score: 38.85 E-value: 2.54e-03
|
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8prop_heme_binding_protein | cd20718 | eight-bladed beta-propeller heme-binding domain in cytochrome cd1 and similar proteins; ... |
38-283 | 2.84e-03 | ||||||
eight-bladed beta-propeller heme-binding domain in cytochrome cd1 and similar proteins; Members here contain an 8-bladed beta-propeller heme-binding domain in cytochrome cd1 (nitrite reductase) and similar proteins including NirN and NirF. During denitrification, nitrate (Nar), nitrite (Nir), nitric oxide (Nor), and nitrous oxide (Nos) reductases catalyze the reaction cascade of NO(3-)-> NO(2-)-> NO -> N2O -> N2. The integral membrane proteins NorC, NorB, and NosR form the core assembly platform that binds the nitrate reductase NarGHI and the periplasmic nitrite reductase NirS via its maturation factor NirF. NirN and NirF form a stable complex with the nitrite reductase NirS during enzyme maturation. NirF is involved in heme d1 insertion. Pssm-ID: 467720 [Multi-domain] Cd Length: 380 Bit Score: 38.86 E-value: 2.84e-03
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NHL_like_3 | cd14956 | Uncharacterized NHL-repeat domain in bacterial proteins; The NHL (NCL-1, HT2A and LIN-41) ... |
32-146 | 3.17e-03 | ||||||
Uncharacterized NHL-repeat domain in bacterial proteins; The NHL (NCL-1, HT2A and LIN-41) repeat is found in multiple tandem copies, typically as 6 instances. It is about 40 residues long and resembles the WD repeat and other beta-propeller structures. Pssm-ID: 271326 [Multi-domain] Cd Length: 274 Bit Score: 38.42 E-value: 3.17e-03
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beta_rpt_yvtn | TIGR02276 | 40-residue YVTN family beta-propeller repeat; This repeat of about 40 amino acids is found in ... |
129-169 | 3.88e-03 | ||||||
40-residue YVTN family beta-propeller repeat; This repeat of about 40 amino acids is found in up to 14 copies per protein. Archaea Methanosarcina mazei and Methanosarcina acetivorans each have over 10 genes that encode tandem copies of this repeat, which is also found in other species. PSIPRED predicts with high confidence that each 40-residue repeats contains four beta strands. This model overlaps somewhat with the NHL repeat (pfam01436) and also shows sequence similarity to the WD domain, G-beta repeat (pfam00400). Pssm-ID: 213697 [Multi-domain] Cd Length: 42 Bit Score: 34.58 E-value: 3.88e-03
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8prop_hemeD1_cyt_cd1-like | cd20785 | eight-bladed heme d1-binding beta-propeller domain in cytochrome cd1 nitrate reductase and ... |
29-164 | 4.19e-03 | ||||||
eight-bladed heme d1-binding beta-propeller domain in cytochrome cd1 nitrate reductase and similar proteins; Cytochrome cd1 (cyt cd1) nitrite reductase catalyzes in vitro the reduction of molecular oxygen to water and the reduction of nitrite to nitric oxide). It is a dimer of two identical subunits of 60 kDa, each containing one c and one d1 heme group. The c heme is the electron accepting pole of the molecule and is reduced in vitro by either azurin or cytochrome c551. The d1 heme is the site where nitrite, and oxygen reduction occur. NiR is a key denitrification enzyme, which controls the rate of the production of toxic nitric oxide (NO) and ultimately regulates the release of NO into the atmosphere. The two types of heme are located in separate domains whose arrangement suggests a mechanism requiring domain movement during catalysis. Pssm-ID: 467729 [Multi-domain] Cd Length: 412 Bit Score: 38.43 E-value: 4.19e-03
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Blast search parameters | ||||
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