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UniProtKB - F7J187 (NVD2_CIOIN)

Entry version 40 (23 Feb 2022)
Sequence version 2 (02 Jun 2021)
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Protein

Cholesterol 7-desaturase nvd 2

Gene

nvd-Ci-2

Organism
Ciona intestinalis (Transparent sea squirt) (Ascidia intestinalis)
Status
Reviewed-Annotation score:

Annotation score:3 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

Catalyzes the production of 7-dehydrocholesterol (7-DHC or cholesta-5,7-dien-3beta-ol) by inserting a double bond (desaturating) at the C7-C8 single bond of cholesterol. Essential regulator of steroid biosynthesis as this reaction is the first step in the synthesis of the steroid hormone Delta7-dafachronic acid.

1 Publication

<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

[2Fe-2S] clusterPROSITE-ProRule annotationNote: Binds 1 [2Fe-2S] cluster per subunit.PROSITE-ProRule annotation

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section describes the metabolic pathway(s) associated with a protein.<p><a href='/help/pathway' target='_top'>More...</a></p>Pathwayi: dafachronic acid biosynthesis

This protein is involved in the pathway dafachronic acid biosynthesis, which is part of Steroid hormone biosynthesis.1 Publication
View all proteins of this organism that are known to be involved in the pathway dafachronic acid biosynthesis and in Steroid hormone biosynthesis.

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 bindingi148Iron-sulfur (2Fe-2S)PROSITE-ProRule annotation1
Metal bindingi150Iron-sulfur (2Fe-2S); via pros nitrogenPROSITE-ProRule annotation1
Metal bindingi169Iron-sulfur (2Fe-2S)PROSITE-ProRule annotation1
Metal bindingi172Iron-sulfur (2Fe-2S); via pros nitrogenPROSITE-ProRule 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

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<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 processCholesterol metabolism, Lipid metabolism, Steroid metabolism, Sterol metabolism
Ligand2Fe-2S, Iron, Iron-sulfur, Metal-binding

Enzyme and pathway databases

UniPathway: a resource for the exploration and annotation of metabolic pathways

More...UniPathwayi		UPA01020

Chemistry databases

SwissLipids knowledge resource for lipid biology

More...SwissLipidsi		SLP:000001122

<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:
Cholesterol 7-desaturase nvd 2 (EC:1.14.19.211 Publication)
Alternative name(s):
Neverland 21 Publication
Short name:
Nvd-Ci-21 Publication
<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:nvd-Ci-2Imported
<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>OrganismiCiona intestinalis (Transparent sea squirt) (Ascidia intestinalis)
<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 identifieri7719 [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 lineageiEukaryota › Metazoa › Chordata › Tunicata › Ascidiacea › Phlebobranchia › Cionidae › Ciona
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000008144 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Unassembled WGS sequence

<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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei6 – 26HelicalSequence analysisAdd BLAST21
Transmembranei32 – 52HelicalSequence analysisAdd BLAST21

Keywords - Cellular componenti

Membrane

<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 describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00004526081 – 452Cholesterol 7-desaturase nvd 2Add BLAST452

<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

Protein-protein interaction databases

STRING: functional protein association networks

More...STRINGi		7719.NP_001265912.1

<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

3D structure databases

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

More...SMRi		F7J187

Database of comparative protein structure models

More...ModBasei		Search...

<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>Domaini107 – 212RieskePROSITE-ProRule annotationAdd BLAST106

<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 cholesterol 7-desaturase family.Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_037178_0_0_1

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		F6QUZ6

Identification of Orthologs from Complete Genome Data

More...OMAi		HTNCREI

Database of Orthologous Groups

More...OrthoDBi		1199207at2759

TreeFam database of animal gene trees

More...TreeFami		TF313257

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		2.102.10.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR045605, KshA-like_C
IPR017941, Rieske_2Fe-2S
IPR036922, Rieske_2Fe-2S_sf

Pfam protein domain database

More...Pfami		View protein in Pfam
PF19298, KshA_C, 1 hit
PF00355, Rieske, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF50022, SSF50022, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS51296, RIESKE, 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.

F7J187-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MLIEYLIRIT VMVITSERLL ILMGLCDESF HFPVMIRVVF NAAVAIVIAL 
        60         70         80         90        100
VMSKLYKVLF APLDLRRKLE DVGYVHHDHS VSREENIRDT QRRKKLGNTP 
       110        120        130        140        150
PVFPNGWFKV ADSTWIKKGQ VKSIYFFGEQ LALFRNKRGL LRALDAYCPH 
       160        170        180        190        200
LLANMAAGGK VVNSDCLECP FHGWKFSGET GKLVDVPYAQ KVPTFVSVKK 
       210        220        230        240        250
WSCCEVDGMA YLWYHCDGGE PKWVLPSSVT INTLKYAGKT EHIINSHIQD 
       260        270        280        290        300
IPENAADISH LDHLHKPVIG SDVEKTNESL LNNLIFHSIQ ASWKPPTDPN 
       310        320        330        340        350
EPHRSTMSIK DNIHLSIFNI KIPLLYLEFE IDQIGPGAVH IHVRTPFFRG 
       360        370        380        390        400
LMLQNVTPIE PFVQKLTHSF YVSPWVPVCI AKAFYLLETT QIERDILMWN 
       410        420        430        440        450
NKTYFRQPVL VKEESALAKH RRWYQQFYSE NSPRMNHRGD LVYPGKPKLA 

DW
Length:452
Mass (Da):51,977
Last modified:June 2, 2021 - 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:i020B5E55C7AB3354
GO

<p>This subsection of the 'Sequence' section reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.<p><a href='/help/sequence_caution' target='_top'>More...</a></p>Sequence cautioni

The sequence EAAA01003003 differs from that shown. Reason: Erroneous gene model prediction.Curated

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 conflicti117K → E in BAK39962 (PubMed:21632547).1
Sequence conflicti152L → G in BAK39962 (PubMed:21632547).1

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
AB607953 mRNA Translation: BAK39962.1
EAAA01003003 Genomic DNA No translation available.

NCBI Reference Sequences

More...RefSeqi		NP_001265912.1, NM_001278983.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...GeneIDi		100176071

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		cin:100176071

<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
AB607953 mRNA Translation: BAK39962.1
EAAA01003003 Genomic DNA No translation available.
RefSeqiNP_001265912.1, NM_001278983.1

3D structure databases

SMRiF7J187
ModBaseiSearch...

Protein-protein interaction databases

STRINGi7719.NP_001265912.1

Chemistry databases

SwissLipidsiSLP:000001122

Genome annotation databases

GeneIDi100176071
KEGGicin:100176071

Phylogenomic databases

HOGENOMiCLU_037178_0_0_1
InParanoidiF6QUZ6
OMAiHTNCREI
OrthoDBi1199207at2759
TreeFamiTF313257

Enzyme and pathway databases

UniPathwayiUPA01020

Family and domain databases

Gene3Di2.102.10.10, 1 hit
InterProiView protein in InterPro
IPR045605, KshA-like_C
IPR017941, Rieske_2Fe-2S
IPR036922, Rieske_2Fe-2S_sf
PfamiView protein in Pfam
PF19298, KshA_C, 1 hit
PF00355, Rieske, 1 hit
SUPFAMiSSF50022, SSF50022, 1 hit
PROSITEiView protein in PROSITE
PS51296, RIESKE, 1 hit

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 nameiNVD2_CIOIN
<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: F7J187
Secondary accession number(s): A0A1W2W3G7, F6QUZ6
<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/Swiss-Prot: June 2, 2021
Last sequence update: June 2, 2021
Last modified: February 23, 2022
This is version 40 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 programChordata 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

Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families
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