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Protein

Nitrite reductase

Gene

nirS

Organism
Paracoccus pantotrophus (Thiosphaera pantotropha)
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the ‘protein existence’ evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

<p>This subsection of the ‘Function’ section provides information relevant to cofactors. A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.<p><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

hemeNote: Binds 2 heme groups per subunit.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Function’ section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the ‘Description’ field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi46Iron (heme axial ligand)1
<p>This subsection of the ‘Function’ section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei94Heme (covalent)1
Binding sitei97Heme (covalent)1
Metal bindingi98Iron (heme axial ligand)1
Metal bindingi229Iron (heme D1 proximal ligand)1

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionOxidoreductase
Biological processElectron transport, Transport
LigandHeme, Iron, Metal-binding

Enzyme and pathway databases

BRENDA Comprehensive Enzyme Information System

More...
BRENDAi
1.7.2.1 4531

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Nitrite reductase (EC:1.7.2.1)
Alternative name(s):
Cytochrome cd1
Cytochrome oxidase
Hydroxylamine reductase (EC:1.7.99.1)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: ‘Name’, ‘Synonyms’, ‘Ordered locus names’ and ‘ORF names’.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:nirS
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiParacoccus pantotrophus (Thiosphaera pantotropha)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the ‘taxonomic identifier’ or ‘taxid’.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri82367 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhodobacteralesRhodobacteraceaeParacoccus

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

GO - Cellular componenti

Keywords - Cellular componenti

Periplasm

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Chemistry databases

Drug and drug target database

More...
DrugBanki
DB03317 Heme C
DB03469 Heme D
DB03309 N-Cyclohexyltaurine

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 29Add BLAST29
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_000000657530 – 596Nitrite reductaseAdd BLAST567

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homodimer.

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

1596
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

Protein Model Portal of the PSI-Nature Structural Biology Knowledgebase

More...
ProteinModelPortali
P72181

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
P72181

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
P72181

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family_and_domains_section">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini77 – 162Cytochrome cPROSITE-ProRule annotationAdd BLAST86

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni30 – 76N-terminal tailAdd BLAST47
Regioni163 – 596D1-heme domainAdd BLAST434

Keywords - Domaini

Signal

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.760.10, 1 hit
2.140.10.20, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR009056 Cyt_c-like_dom
IPR036909 Cyt_c-like_dom_sf
IPR003143 Cyt_cd1_C_sf
IPR011048 Haem_d1_sf

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF13442 Cytochrome_CBB3, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF46626 SSF46626, 1 hit
SSF51004 SSF51004, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS51007 CYTC, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>.<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

P72181-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MRQRTPFARP GLLASAALAL VLGPLAASAQ EQVAPPKDPA AALEDHKTRT
60 70 80 90 100
DNRYEPSLDN LAQQDVAAPG APEGVSALSD AQYNEANKIY FERCAGCHGV
110 120 130 140 150
LRKGATGKAL TPDLTRDLGF DYLQSFITYG SPAGMPNWGT SGELSAEQVD
160 170 180 190 200
LMANYLLLDP AAPPEFGMKE MRESWKVHVA PEDRPTQQEN DWDLENLFSV
210 220 230 240 250
TLRDAGQIAL IDGATYEIKS VLDTGYAVHI SRLSASGRYL FVIGRDGKVN
260 270 280 290 300
MIDLWMKEPT TVAEIKIGSE ARSIETSKME GWEDKYAIAG AYWPPQYVIM
310 320 330 340 350
DGETLEPKKI QSTRGMTYDE QEYHPEPRVA AILASHYRPE FIVNVKETGK
360 370 380 390 400
ILLVDYTDLD NLKTTEISAE RFLHDGGLDG SHRYFITAAN ARNKLVVIDT
410 420 430 440 450
KEGKLVAIED TGGQTPHPGR GANFVHPTFG PVWATSHMGD DSVALIGTDP
460 470 480 490 500
EGHPDNAWKI LDSFPALGGG SLFIKTHPNS QYLYVDATLN PEAEISGSVA
510 520 530 540 550
VFDIKAMTGD GSDPEFKTLP IAEWAGITEG QPRVVQGEFN KDGTEVWFSV
560 570 580 590
WNGKDQESAL VVVDDKTLEL KHVIKDERLV TPTGKFNVYN TMTDTY
Length:596
Mass (Da):65,383
Last modified:November 8, 2002 - v2
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:iABAD0C871E8FB7F1
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Sequence’ section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti28S → A in AAB17878 (PubMed:10708389).Curated1
Sequence conflicti76S → T in AAB17878 (PubMed:10708389).Curated1
Sequence conflicti130G → A in AAB17878 (PubMed:10708389).Curated1
Sequence conflicti214A → T in AAB17878 (PubMed:10708389).Curated1

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
U75413 Genomic DNA Translation: AAB17878.1
AJ401462 Genomic DNA Translation: CAC03621.1

NCBI Reference Sequences

More...
RefSeqi
WP_024843009.1, NZ_QOZU01000023.1

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U75413 Genomic DNA Translation: AAB17878.1
AJ401462 Genomic DNA Translation: CAC03621.1
RefSeqiWP_024843009.1, NZ_QOZU01000023.1

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1AOFX-ray2.00A/B30-596[»]
1AOMX-ray1.80A/B30-596[»]
1AOQX-ray1.80A/B30-596[»]
1DY7X-ray1.60A/B30-596[»]
1E2RX-ray1.59A/B30-596[»]
1GQ1X-ray1.40A/B30-596[»]
1H9XX-ray2.10A/B30-596[»]
1H9YX-ray2.40A/B30-596[»]
1HCMX-ray2.50A/B30-596[»]
1HJ3X-ray1.60A/B30-596[»]
1HJ4X-ray1.60A/B30-596[»]
1HJ5X-ray1.46A/B30-596[»]
1QKSX-ray1.28A/B30-596[»]
ProteinModelPortaliP72181
SMRiP72181
ModBaseiSearch...
MobiDBiSearch...

Chemistry databases

DrugBankiDB03317 Heme C
DB03469 Heme D
DB03309 N-Cyclohexyltaurine

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Enzyme and pathway databases

BRENDAi1.7.2.1 4531

Miscellaneous databases

EvolutionaryTraceiP72181

Family and domain databases

Gene3Di1.10.760.10, 1 hit
2.140.10.20, 1 hit
InterProiView protein in InterPro
IPR009056 Cyt_c-like_dom
IPR036909 Cyt_c-like_dom_sf
IPR003143 Cyt_cd1_C_sf
IPR011048 Haem_d1_sf
PfamiView protein in Pfam
PF13442 Cytochrome_CBB3, 1 hit
SUPFAMiSSF46626 SSF46626, 1 hit
SSF51004 SSF51004, 1 hit
PROSITEiView protein in PROSITE
PS51007 CYTC, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the ‘Entry information’ section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiNIRS_PARPN
<p>This subsection of the ‘Entry information’ section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called ‘Primary (citable) accession number’.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P72181
Secondary accession number(s): Q9FCQ0
<p>This subsection of the ‘Entry information’ section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification (‘Last modified’). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 1, 1997
Last sequence update: November 8, 2002
Last modified: December 5, 2018
This is version 115 of the entry and version 2 of the sequence. See complete history.
<p>This subsection of the ‘Entry information’ section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

<p>This section contains any relevant information that doesn’t fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
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