cytochrome c nitrite reductase and similar proteins; This family contains cytochrome c nitrite ...
686-1023
3.04e-129
cytochrome c nitrite reductase and similar proteins; This family contains cytochrome c nitrite reductase (also known as cytochrome c552, or NrfA) and similar proteins. The pentaheme enzyme NrfA catalyzes the electron reduction of nitrite to ammonia in the nitrogen cycle. This enzyme can also transform nitrogen monoxide and hydroxylamine, two potential bound reaction intermediates, into ammonia. It is a homodimer, with each monomer containing four classical CXXCH type heme-binding sites along with an alternative CXXCK heme-binding motif, which is important for catalysis. This family also includes octaheme nitrite reductase (TvNiR) from the haloalkaliphilic bacterium Thioalkalivibrio paradoxus which catalyzes the reduction of nitrite and hydroxylamine to ammonia as well as the reduction of sulfite to sulfide.
:
Pssm-ID: 349426 Cd Length: 370 Bit Score: 399.25 E-value: 3.04e-129
FMN-binding domain; This conserved region includes the FMN-binding site of the NqrC protein as ...
283-358
4.77e-11
FMN-binding domain; This conserved region includes the FMN-binding site of the NqrC protein as well as the NosR and NirI regulatory proteins. This domain is post-translationally flavinylated that may facilitate electron transfer, and thus, resembles multiheme cytochromes.
:
Pssm-ID: 461226 [Multi-domain] Cd Length: 71 Bit Score: 59.55 E-value: 4.77e-11
cytochrome c nitrite reductase and similar proteins; This family contains cytochrome c nitrite ...
686-1023
3.04e-129
cytochrome c nitrite reductase and similar proteins; This family contains cytochrome c nitrite reductase (also known as cytochrome c552, or NrfA) and similar proteins. The pentaheme enzyme NrfA catalyzes the electron reduction of nitrite to ammonia in the nitrogen cycle. This enzyme can also transform nitrogen monoxide and hydroxylamine, two potential bound reaction intermediates, into ammonia. It is a homodimer, with each monomer containing four classical CXXCH type heme-binding sites along with an alternative CXXCK heme-binding motif, which is important for catalysis. This family also includes octaheme nitrite reductase (TvNiR) from the haloalkaliphilic bacterium Thioalkalivibrio paradoxus which catalyzes the reduction of nitrite and hydroxylamine to ammonia as well as the reduction of sulfite to sulfide.
Pssm-ID: 349426 Cd Length: 370 Bit Score: 399.25 E-value: 3.04e-129
Cytochrome c552; Cytochrome c552 (cytochrome c nitrite reductase) is a crucial enzyme in the ...
679-1035
8.55e-86
Cytochrome c552; Cytochrome c552 (cytochrome c nitrite reductase) is a crucial enzyme in the nitrogen cycle catalysing the reduction of nitrite to ammonia. The crystal structure of cytochrome c552 reveals it to be a dimer, with with 10 close-packed type c haem groups.
Pssm-ID: 426726 [Multi-domain] Cd Length: 435 Bit Score: 285.02 E-value: 8.55e-86
FMN-binding domain; This conserved region includes the FMN-binding site of the NqrC protein as ...
283-358
4.77e-11
FMN-binding domain; This conserved region includes the FMN-binding site of the NqrC protein as well as the NosR and NirI regulatory proteins. This domain is post-translationally flavinylated that may facilitate electron transfer, and thus, resembles multiheme cytochromes.
Pssm-ID: 461226 [Multi-domain] Cd Length: 71 Bit Score: 59.55 E-value: 4.77e-11
FMN-binding domain; This conserved region includes the FMN-binding site of the NqrC protein as ...
170-245
4.51e-10
FMN-binding domain; This conserved region includes the FMN-binding site of the NqrC protein as well as the NosR and NirI regulatory proteins. This domain is post-translationally flavinylated that may facilitate electron transfer, and thus, resembles multiheme cytochromes.
Pssm-ID: 461226 [Multi-domain] Cd Length: 71 Bit Score: 56.85 E-value: 4.51e-10
FMN-binding domain; This conserved region includes the FMN-binding site of the NqrC protein as ...
58-136
2.32e-08
FMN-binding domain; This conserved region includes the FMN-binding site of the NqrC protein as well as the NosR and NirI regulatory proteins. This domain is post-translationally flavinylated that may facilitate electron transfer, and thus, resembles multiheme cytochromes.
Pssm-ID: 461226 [Multi-domain] Cd Length: 71 Bit Score: 51.84 E-value: 2.32e-08
electron transport complex, RnfABCDGE type, G subunit; The six subunit complex RnfABCDGE in ...
163-248
2.80e-05
electron transport complex, RnfABCDGE type, G subunit; The six subunit complex RnfABCDGE in Rhodobacter capsulatus encodes an apparent NADH oxidoreductase responsible for electron transport to nitrogenase, necessary for nitrogen fixation. A closely related complex in E. coli, RsxABCDGE (Reducer of SoxR), reduces the 2Fe-2S-containing superoxide sensor SoxR, active as a transcription factor when oxidized. This family of putative NADH oxidoreductase complexes exists in many of the same species as the related NQR, a Na(+)-translocating NADH-quinone reductase, but is distinct. This model describes the A subunit. [Energy metabolism, Electron transport]
Pssm-ID: 273889 [Multi-domain] Cd Length: 186 Bit Score: 46.19 E-value: 2.80e-05
electron transport complex, RnfABCDGE type, G subunit; The six subunit complex RnfABCDGE in ...
281-361
1.01e-04
electron transport complex, RnfABCDGE type, G subunit; The six subunit complex RnfABCDGE in Rhodobacter capsulatus encodes an apparent NADH oxidoreductase responsible for electron transport to nitrogenase, necessary for nitrogen fixation. A closely related complex in E. coli, RsxABCDGE (Reducer of SoxR), reduces the 2Fe-2S-containing superoxide sensor SoxR, active as a transcription factor when oxidized. This family of putative NADH oxidoreductase complexes exists in many of the same species as the related NQR, a Na(+)-translocating NADH-quinone reductase, but is distinct. This model describes the A subunit. [Energy metabolism, Electron transport]
Pssm-ID: 273889 [Multi-domain] Cd Length: 186 Bit Score: 44.27 E-value: 1.01e-04
cytochrome c nitrite reductase and similar proteins; This family contains cytochrome c nitrite ...
686-1023
3.04e-129
cytochrome c nitrite reductase and similar proteins; This family contains cytochrome c nitrite reductase (also known as cytochrome c552, or NrfA) and similar proteins. The pentaheme enzyme NrfA catalyzes the electron reduction of nitrite to ammonia in the nitrogen cycle. This enzyme can also transform nitrogen monoxide and hydroxylamine, two potential bound reaction intermediates, into ammonia. It is a homodimer, with each monomer containing four classical CXXCH type heme-binding sites along with an alternative CXXCK heme-binding motif, which is important for catalysis. This family also includes octaheme nitrite reductase (TvNiR) from the haloalkaliphilic bacterium Thioalkalivibrio paradoxus which catalyzes the reduction of nitrite and hydroxylamine to ammonia as well as the reduction of sulfite to sulfide.
Pssm-ID: 349426 Cd Length: 370 Bit Score: 399.25 E-value: 3.04e-129
Cytochrome c552; Cytochrome c552 (cytochrome c nitrite reductase) is a crucial enzyme in the ...
679-1035
8.55e-86
Cytochrome c552; Cytochrome c552 (cytochrome c nitrite reductase) is a crucial enzyme in the nitrogen cycle catalysing the reduction of nitrite to ammonia. The crystal structure of cytochrome c552 reveals it to be a dimer, with with 10 close-packed type c haem groups.
Pssm-ID: 426726 [Multi-domain] Cd Length: 435 Bit Score: 285.02 E-value: 8.55e-86
Na+-translocating ferredoxin:NAD+ oxidoreductase RNF, RnfG subunit [Energy production and ...
163-248
3.49e-11
Na+-translocating ferredoxin:NAD+ oxidoreductase RNF, RnfG subunit [Energy production and conversion]; Na+-translocating ferredoxin:NAD+ oxidoreductase RNF, RnfG subunit is part of the Pathway/BioSystem: Na+-translocating Fd:NADH oxidoreductase
Pssm-ID: 443697 [Multi-domain] Cd Length: 192 Bit Score: 63.69 E-value: 3.49e-11
FMN-binding domain; This conserved region includes the FMN-binding site of the NqrC protein as ...
283-358
4.77e-11
FMN-binding domain; This conserved region includes the FMN-binding site of the NqrC protein as well as the NosR and NirI regulatory proteins. This domain is post-translationally flavinylated that may facilitate electron transfer, and thus, resembles multiheme cytochromes.
Pssm-ID: 461226 [Multi-domain] Cd Length: 71 Bit Score: 59.55 E-value: 4.77e-11
Na+-translocating ferredoxin:NAD+ oxidoreductase RNF, RnfG subunit [Energy production and ...
282-361
2.25e-10
Na+-translocating ferredoxin:NAD+ oxidoreductase RNF, RnfG subunit [Energy production and conversion]; Na+-translocating ferredoxin:NAD+ oxidoreductase RNF, RnfG subunit is part of the Pathway/BioSystem: Na+-translocating Fd:NADH oxidoreductase
Pssm-ID: 443697 [Multi-domain] Cd Length: 192 Bit Score: 61.00 E-value: 2.25e-10
FMN-binding domain; This conserved region includes the FMN-binding site of the NqrC protein as ...
170-245
4.51e-10
FMN-binding domain; This conserved region includes the FMN-binding site of the NqrC protein as well as the NosR and NirI regulatory proteins. This domain is post-translationally flavinylated that may facilitate electron transfer, and thus, resembles multiheme cytochromes.
Pssm-ID: 461226 [Multi-domain] Cd Length: 71 Bit Score: 56.85 E-value: 4.51e-10
FMN-binding domain; This conserved region includes the FMN-binding site of the NqrC protein as ...
58-136
2.32e-08
FMN-binding domain; This conserved region includes the FMN-binding site of the NqrC protein as well as the NosR and NirI regulatory proteins. This domain is post-translationally flavinylated that may facilitate electron transfer, and thus, resembles multiheme cytochromes.
Pssm-ID: 461226 [Multi-domain] Cd Length: 71 Bit Score: 51.84 E-value: 2.32e-08
Na+-transporting NADH:ubiquinone oxidoreductase, subunit NqrC [Energy production and ...
71-125
1.50e-06
Na+-transporting NADH:ubiquinone oxidoreductase, subunit NqrC [Energy production and conversion]; Na+-transporting NADH:ubiquinone oxidoreductase, subunit NqrC is part of the Pathway/BioSystem: Na+-translocating NADH dehydrogenase
Pssm-ID: 442116 Cd Length: 257 Bit Score: 50.97 E-value: 1.50e-06
Na+-transporting NADH:ubiquinone oxidoreductase, subunit NqrC [Energy production and ...
295-351
2.12e-05
Na+-transporting NADH:ubiquinone oxidoreductase, subunit NqrC [Energy production and conversion]; Na+-transporting NADH:ubiquinone oxidoreductase, subunit NqrC is part of the Pathway/BioSystem: Na+-translocating NADH dehydrogenase
Pssm-ID: 442116 Cd Length: 257 Bit Score: 47.51 E-value: 2.12e-05
Na+-translocating ferredoxin:NAD+ oxidoreductase RNF, RnfG subunit [Energy production and ...
83-136
2.31e-05
Na+-translocating ferredoxin:NAD+ oxidoreductase RNF, RnfG subunit [Energy production and conversion]; Na+-translocating ferredoxin:NAD+ oxidoreductase RNF, RnfG subunit is part of the Pathway/BioSystem: Na+-translocating Fd:NADH oxidoreductase
Pssm-ID: 443697 [Multi-domain] Cd Length: 192 Bit Score: 46.36 E-value: 2.31e-05
electron transport complex, RnfABCDGE type, G subunit; The six subunit complex RnfABCDGE in ...
163-248
2.80e-05
electron transport complex, RnfABCDGE type, G subunit; The six subunit complex RnfABCDGE in Rhodobacter capsulatus encodes an apparent NADH oxidoreductase responsible for electron transport to nitrogenase, necessary for nitrogen fixation. A closely related complex in E. coli, RsxABCDGE (Reducer of SoxR), reduces the 2Fe-2S-containing superoxide sensor SoxR, active as a transcription factor when oxidized. This family of putative NADH oxidoreductase complexes exists in many of the same species as the related NQR, a Na(+)-translocating NADH-quinone reductase, but is distinct. This model describes the A subunit. [Energy metabolism, Electron transport]
Pssm-ID: 273889 [Multi-domain] Cd Length: 186 Bit Score: 46.19 E-value: 2.80e-05
electron transport complex, RnfABCDGE type, G subunit; The six subunit complex RnfABCDGE in ...
281-361
1.01e-04
electron transport complex, RnfABCDGE type, G subunit; The six subunit complex RnfABCDGE in Rhodobacter capsulatus encodes an apparent NADH oxidoreductase responsible for electron transport to nitrogenase, necessary for nitrogen fixation. A closely related complex in E. coli, RsxABCDGE (Reducer of SoxR), reduces the 2Fe-2S-containing superoxide sensor SoxR, active as a transcription factor when oxidized. This family of putative NADH oxidoreductase complexes exists in many of the same species as the related NQR, a Na(+)-translocating NADH-quinone reductase, but is distinct. This model describes the A subunit. [Energy metabolism, Electron transport]
Pssm-ID: 273889 [Multi-domain] Cd Length: 186 Bit Score: 44.27 E-value: 1.01e-04
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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of your query sequence and the protein sequences used to curate the domain model,
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The thumbnail image, if present, provides an approximate view of the feature's location in 3 dimensions.
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Functional characterization of the conserved domain architecture found on the query.
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This image shows a graphical summary of conserved domains identified on the query sequence.
The Show Concise/Full Display button at the top of the page can be used to select the desired level of detail: only top scoring hits
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Domains are color coded according to superfamilies
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if a domain or superfamily has been annotated with functional sites (conserved features),
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click on the bars or triangles to view your query sequence embedded in a multiple sequence alignment of the proteins used to develop the corresponding domain model.
The table lists conserved domains identified on the query sequence. Click on the plus sign (+) on the left to display full descriptions, alignments, and scores.
Click on the domain model's accession number to view the multiple sequence alignment of the proteins used to develop the corresponding domain model.
To view your query sequence embedded in that multiple sequence alignment, click on the colored bars in the Graphical Summary portion of the search results page,
or click on the triangles, if present, that represent functional sites (conserved features)
mapped to the query sequence.
Concise Display shows only the best scoring domain model, in each hit category listed below except non-specific hits, for each region on the query sequence.
(labeled illustration) Standard Display shows only the best scoring domain model from each source, in each hit category listed below for each region on the query sequence.
(labeled illustration) Full Display shows all domain models, in each hit category below, that meet or exceed the RPS-BLAST threshold for statistical significance.
(labeled illustration) Four types of hits can be shown, as available,
for each region on the query sequence:
specific hits meet or exceed a domain-specific e-value threshold
(illustrated example)
and represent a very high confidence that the query sequence belongs to the same protein family as the sequences use to create the domain model
non-specific hits
meet or exceed the RPS-BLAST threshold for statistical significance (default E-value cutoff of 0.01, or an E-value selected by user via the
advanced search options)
the domain superfamily to which the specific and non-specific hits belong
multi-domain models that were computationally detected and are likely to contain multiple single domains
Retrieve proteins that contain one or more of the domains present in the query sequence, using the Conserved Domain Architecture Retrieval Tool
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