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Entry version 133 (17 Jun 2020)
Sequence version 1 (01 Jun 2003)
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Protein

Nitric oxide synthase

Gene

nos1

Organism
Danio rerio (Zebrafish) (Brachydanio rerio)
Status
Unreviewed-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 transcript 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

Produces nitric oxide (NO).UniRule annotation

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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

Protein has several cofactor binding sites:

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> 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 bindingi417Iron (heme axial ligand)UniRule annotation1

<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

GO - Biological processi

<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 functionCalmodulin-bindingUniRule annotation, OxidoreductaseUniRule annotation
LigandFADUniRule annotation, Flavoprotein, FMNUniRule annotation, HemeUniRule annotationSAAS annotation, Iron, Metal-binding, NADPUniRule annotation

<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%5Fand%5Ftaxonomy%5Fsection">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:
Nitric oxide synthaseUniRule annotation (EC:1.14.13.39UniRule annotation)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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:nos1Imported
Synonyms:nnosImported
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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>OrganismiDanio rerio (Zebrafish) (Brachydanio rerio)Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 identifieri7955 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiActinopterygiiNeopterygiiTeleosteiOstariophysiCypriniformesCyprinidaeDanio

Organism-specific databases

Zebrafish Information Network genome database

More...
ZFINi
ZDB-GENE-001101-1 nos1

<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

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

<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

GO - Molecular functioni

<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%5Fand%5Fdomains%5Fsection">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>Domaini17 – 99PDZInterPro annotationAdd BLAST83
Domaini757 – 937Flavodoxin-likeInterPro annotationAdd BLAST181
Domaini992 – 1239FAD-binding FR-typeInterPro annotationAdd BLAST248

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the NOS family.UniRule annotation

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1158 Eukaryota
COG0369 LUCA
COG4362 LUCA

KEGG Orthology (KO)

More...
KOi
K13240

Database of Orthologous Groups

More...
OrthoDBi
90349at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q800V0

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.20.990.10, 1 hit
2.30.42.10, 1 hit
3.40.50.360, 1 hit
3.40.50.80, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR003097 CysJ-like_FAD-binding
IPR017927 FAD-bd_FR_type
IPR001094 Flavdoxin-like
IPR008254 Flavodoxin/NO_synth
IPR001709 Flavoprot_Pyr_Nucl_cyt_Rdtase
IPR029039 Flavoprotein-like_sf
IPR039261 FNR_nucleotide-bd
IPR023173 NADPH_Cyt_P450_Rdtase_alpha
IPR012144 NOS_euk
IPR004030 NOS_N
IPR036119 NOS_N_sf
IPR001433 OxRdtase_FAD/NAD-bd
IPR001478 PDZ
IPR036034 PDZ_sf
IPR017938 Riboflavin_synthase-like_b-brl

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00667 FAD_binding_1, 1 hit
PF00258 Flavodoxin_1, 1 hit
PF00175 NAD_binding_1, 1 hit
PF02898 NO_synthase, 1 hit
PF00595 PDZ, 1 hit

PIRSF; a whole-protein classification database

More...
PIRSFi
PIRSF000333 NOS, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00369 FLAVODOXIN
PR00371 FPNCR

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00228 PDZ, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF50156 SSF50156, 1 hit
SSF52218 SSF52218, 1 hit
SSF52343 SSF52343, 1 hit
SSF56512 SSF56512, 1 hit
SSF63380 SSF63380, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS51384 FAD_FR, 1 hit
PS50902 FLAVODOXIN_LIKE, 1 hit
PS60001 NOS, 1 hit
PS50106 PDZ, 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%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<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%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">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.

Q800V0-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MQESEPSVCQ LQPNIISVRL FKRKIGGLGF LVKQRVCKPP VIVSDLIRGG
60 70 80 90 100
AAEECGLVQV GDIVLAVNNK PLVDMSYERA LETLKNVSPE SHAVLILRGP
110 120 130 140 150
EGFTTHLETT LSSDGKTKTI RVTRPVNPAQ SRPCERCSPL TPNMTKELRA
160 170 180 190 200
IENLSSSSTP RKESRDDKPL IPLLSQDSLL REGGHAGLLL NGVEDNNDLL
210 220 230 240 250
KEIEPVLKLI KNSKKEINGE GQRVIDRKDA EVQVERDLGV GNGQNAQLAS
260 270 280 290 300
DNDRVFDDLW RKDNMPTVLN NPYSESDKPQ SYERVSPTKA VQNGSPSKCP
310 320 330 340 350
RFMKVKNWET GALYNDTLHH SSSKVPICTE HVCIGSIMVP NQHAHEPDED
360 370 380 390 400
RRKEELLPLA TDFIDQYYTS IKRCCSKAHV DRLEEVKKEI ETSGTYQLKD
410 420 430 440 450
TELIYGAKHA WRNAARCVGR IQWSKLQVFD ARDCTTAHGM FNYICNHIKY
460 470 480 490 500
ATNKGNLRSA ITIFPQKTDG KHDFRVWNSQ LIRYAGYKQP DGSILGDPAS
510 520 530 540 550
VELTEICMQQ GWKAPKGRFD VLPLLLQANG NDPELFEIPD DLVLEVPIIH
560 570 580 590 600
PKFEWFKELN LKWYGLPAVS NMLLEIGGLE FTACPFSGWY MGTEIGVRDF
610 620 630 640 650
CDSSRYNILE EVATMMGLDT RKTSSLWKDQ ALVEINIAVL YSYQMSKVTI
660 670 680 690 700
VDHHSATESF MKHMENEYRV RGGCPGDWVW IVPPMSGSIT PVFHQEMLNY
710 720 730 740 750
RLTPSFEYQP DPWNTHVWKG VNGTPTKKRA IGFKKLAKAV KFSATLMGQA
760 770 780 790 800
MAKRVKATIL FATETGKSQD YAKTLCEIFK HAFDAKVMSM DEYDTVDLEH
810 820 830 840 850
ETLVIVVTST FGNGDPPENG EKFGAALMEM RHPTTSVEDR KTYKVRFNSV
860 870 880 890 900
SSYSDTRKSS SDEPESKANF ESTGPLANVR FSVFGLGSRA YPHFCAFAHA
910 920 930 940 950
VDTLFEELGR ERILRMGEGD ELCGQEESFR TWAKKVFKAA CDVFCVGDDV
960 970 980 990 1000
NIEKANDSLI SNDRSWKKSK FRMTYTAEAP TLTQALYSIH KKKVYGAKVV
1010 1020 1030 1040 1050
QRQNLQSARS NRLTIFVRLD ANNHESLKYL PGDHLGVFPG NNEDLVTTLI
1060 1070 1080 1090 1100
EKLEDAPPVN QIVKVEFLEE RNTALGVISN WTDESRIPPC TIYQAFKYFL
1110 1120 1130 1140 1150
DITTPPSPVL LQQFAPLATN EKQRKRLEVL SKGLQEYEEW KWYNNPTMVE
1160 1170 1180 1190 1200
VLEEFPSLQI PSTLLLTQLP LLQPRYYSIS SSPDLYPGEI HLTVAVVSYR
1210 1220 1230 1240 1250
PRDGEGPIHH GVCSSWLNSL DEGDTVPCFV RGAPSFRMPK DSQVPCILIG
1260 1270 1280 1290 1300
PGTGIAPFRA FWQQRQYDVE NKGIKACPMI LVFGCRQSQI DHIYKEQTIQ
1310 1320 1330 1340 1350
AKNKEVFKEL YTAYSREPGR PKKYVQDVLR EQLSETVYKC LREEGGHIYV
1360 1370 1380 1390 1400
CGDVTMAGDV LKTVQQIFKL HGNMSLEDAG FYISKLRDEN RYHEDIFGVT
1410 1420 1430
LRTCEVTNRL RSESIAYIEE SKKDIDEVFC S
Length:1,431
Mass (Da):161,858
Last modified:June 1, 2003 - v1
<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:i9CA4ACB201FC04F9
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AY211528 mRNA Translation: AAO53340.1

NCBI Reference Sequences

More...
RefSeqi
NP_571735.1, NM_131660.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
60658

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
dre:60658

<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
AY211528 mRNA Translation: AAO53340.1
RefSeqiNP_571735.1, NM_131660.1

3D structure databases

Database of comparative protein structure models

More...
ModBasei
Search...

SWISS-MODEL Interactive Workspace

More...
SWISS-MODEL-Workspacei
Submit a new modelling project...

Genome annotation databases

GeneIDi60658
KEGGidre:60658

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
4842
ZFINiZDB-GENE-001101-1 nos1

Phylogenomic databases

eggNOGiKOG1158 Eukaryota
COG0369 LUCA
COG4362 LUCA
KOiK13240
OrthoDBi90349at2759
PhylomeDBiQ800V0

Family and domain databases

Gene3Di1.20.990.10, 1 hit
2.30.42.10, 1 hit
3.40.50.360, 1 hit
3.40.50.80, 1 hit
InterProiView protein in InterPro
IPR003097 CysJ-like_FAD-binding
IPR017927 FAD-bd_FR_type
IPR001094 Flavdoxin-like
IPR008254 Flavodoxin/NO_synth
IPR001709 Flavoprot_Pyr_Nucl_cyt_Rdtase
IPR029039 Flavoprotein-like_sf
IPR039261 FNR_nucleotide-bd
IPR023173 NADPH_Cyt_P450_Rdtase_alpha
IPR012144 NOS_euk
IPR004030 NOS_N
IPR036119 NOS_N_sf
IPR001433 OxRdtase_FAD/NAD-bd
IPR001478 PDZ
IPR036034 PDZ_sf
IPR017938 Riboflavin_synthase-like_b-brl
PfamiView protein in Pfam
PF00667 FAD_binding_1, 1 hit
PF00258 Flavodoxin_1, 1 hit
PF00175 NAD_binding_1, 1 hit
PF02898 NO_synthase, 1 hit
PF00595 PDZ, 1 hit
PIRSFiPIRSF000333 NOS, 1 hit
PRINTSiPR00369 FLAVODOXIN
PR00371 FPNCR
SMARTiView protein in SMART
SM00228 PDZ, 1 hit
SUPFAMiSSF50156 SSF50156, 1 hit
SSF52218 SSF52218, 1 hit
SSF52343 SSF52343, 1 hit
SSF56512 SSF56512, 1 hit
SSF63380 SSF63380, 1 hit
PROSITEiView protein in PROSITE
PS51384 FAD_FR, 1 hit
PS50902 FLAVODOXIN_LIKE, 1 hit
PS60001 NOS, 1 hit
PS50106 PDZ, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
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 nameiQ800V0_DANRE
<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: Q800V0
<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%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/TrEMBL: June 1, 2003
Last sequence update: June 1, 2003
Last modified: June 17, 2020
This is version 133 of the entry and version 1 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 statusiUnreviewed (UniProtKB/TrEMBL)
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