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Entry version 85 (02 Jun 2021)
Sequence version 1 (07 Jun 2005)
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Protein

Plasma membrane ascorbate-dependent reductase CYBRD1

Gene

cybrd1

Organism
Danio rerio (Zebrafish) (Brachydanio rerio)
Status
Reviewed-Annotation score:

Annotation score:4 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

Plasma membrane reductase that uses cytoplasmic ascorbate as an electron donor to reduce extracellular Fe3+ into Fe2+. It is also able to reduce extracellular monodehydro-L-ascorbate and may be involved in extracellular ascorbate regeneration (By similarity).

May also function as a cupric transmembrane reductase (By similarity).

By similarity

<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

heme bBy similarityNote: Binds 2 heme b groups non-covalently.By similarity

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 bindingi48Iron 1 (heme b 1 axial ligand); via tele nitrogenBy similarity1
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> 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 sitei68Heme b 2By similarity1
Binding sitei77AscorbateBy similarity1
Binding sitei77Heme b 2By similarity1
Binding sitei81AscorbateBy similarity1
Metal bindingi84Iron 2 (heme b 2 axial ligand); via tele nitrogenBy similarity1
Metal bindingi106Fe(3+); substrate; via tele nitrogenBy similarity1
Metal bindingi118Iron 1 (heme b 1 axial ligand); via tele nitrogenBy similarity1
Binding sitei150AscorbateBy similarity1
Metal bindingi157Iron 2 (heme b 2 axial ligand); via tele nitrogenBy similarity1
Binding sitei178Heme b 1By similarity1
Binding sitei223Heme b 2By similarity1

<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 functionOxidoreductase, Translocase
Biological processElectron transport, Transport
LigandHeme, Iron, Metal-binding

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-DRE-917937, Iron uptake and transport

<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:
Plasma membrane ascorbate-dependent reductase CYBRD1By similarity (EC:7.2.1.3By similarity)
Alternative name(s):
Cytochrome b reductase 1
<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:cybrd1
ORF Names:zgc:110065
<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)
<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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiActinopterygiiNeopterygiiTeleosteiOstariophysiCypriniformesDanionidaeDanioninaeDanio
<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
  • UP000000437 <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: Unplaced

Organism-specific databases

Zebrafish Information Network genome database

More...
ZFINi
ZDB-GENE-050522-365, cybrd1

<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 subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini1 – 5CytoplasmicBy similarity5
<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 – 30Helical; Name=1By similarityAdd BLAST25
Topological domaini31 – 45ExtracellularBy similarityAdd BLAST15
Transmembranei46 – 67Helical; Name=2By similarityAdd BLAST22
Topological domaini68 – 76CytoplasmicBy similarity9
Transmembranei77 – 103Helical; Name=3By similarityAdd BLAST27
Topological domaini104 – 116ExtracellularBy similarityAdd BLAST13
Transmembranei117 – 142Helical; Name=4By similarityAdd BLAST26
Topological domaini143 – 149CytoplasmicBy similarity7
Transmembranei150 – 177Helical; Name=5By similarityAdd BLAST28
Topological domaini178 – 195ExtracellularBy similarityAdd BLAST18
Transmembranei196 – 220Helical; Name=6By similarityAdd BLAST25
Topological domaini221 – 253CytoplasmicBy similarityAdd BLAST33

Keywords - Cellular componenti

Cell membrane, 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_00003148341 – 253Plasma membrane ascorbate-dependent reductase CYBRD1Add BLAST253

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
Q503V1

<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%5Fsection">'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%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homodimer.

By similarity

GO - Molecular functioni

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
7955.ENSDARP00000093650

<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
Q503V1

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>Domaini13 – 218Cytochrome b561PROSITE-ProRule annotationAdd BLAST206

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>Regioni113 – 116Heme b 1 bindingBy similarity4
Regioni227 – 253DisorderedSequence analysisAdd BLAST27

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1619, Eukaryota

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q503V1

Database of Orthologous Groups

More...
OrthoDBi
1503869at2759

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR043205, CYB561/CYBRD1-like
IPR028838, Cybrd1
IPR006593, Cyt_b561/ferric_Rdtase_TM

The PANTHER Classification System

More...
PANTHERi
PTHR10106, PTHR10106, 1 hit
PTHR10106:SF12, PTHR10106:SF12, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF03188, Cytochrom_B561, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00665, B561, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50939, CYTOCHROME_B561, 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>Sequence (1+)i

<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.

This entry has 1 described isoform and 2 potential isoforms that are computationally mapped.Show allAlign All

Q503V1-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MENYPQFLLF FILASVVGIV SIAVALSWVL HYREGLGWDG GAAEFNWHPL
60 70 80 90 100
LMVIGFIFLQ GIAIVVYRLP WTWRCSKQMM KLIHAGLHIL AFILAVISVV
110 120 130 140 150
AVFVFHNAKN IPNMYSLHSW VGLAAVVLYP SQIVLGIAVY LIPVTPVRVR
160 170 180 190 200
AALMPLHIYS GLFIFISVIA AALMGITEKL IFSLKSPAYK DSPPEAVLVN
210 220 230 240 250
VLGLLIAAFG ALVVWIATRS AWKRPREETA QTLSNNTTSP EEIKVGTDMT

TTS
Length:253
Mass (Da):27,905
Last modified:June 7, 2005 - 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:i1B40A5B220D8019B
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There are 2 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
A8WHQ9A8WHQ9_DANRE
Cytochrome b reductase 1
cybrd1
254Annotation 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>
E9QHW8E9QHW8_DANRE
Cytochrome b reductase 1
cybrd1
106Annotation 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>

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
BC095170 mRNA Translation: AAH95170.1
BC153653 mRNA Translation: AAI53654.1

NCBI Reference Sequences

More...
RefSeqi
NP_001018336.1, NM_001020500.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
552960

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
dre:552960

<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
BC095170 mRNA Translation: AAH95170.1
BC153653 mRNA Translation: AAI53654.1
RefSeqiNP_001018336.1, NM_001020500.1

3D structure databases

SMRiQ503V1
ModBaseiSearch...

Protein-protein interaction databases

STRINGi7955.ENSDARP00000093650

Proteomic databases

PaxDbiQ503V1

Genome annotation databases

GeneIDi552960
KEGGidre:552960

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
79901
ZFINiZDB-GENE-050522-365, cybrd1

Phylogenomic databases

eggNOGiKOG1619, Eukaryota
InParanoidiQ503V1
OrthoDBi1503869at2759

Enzyme and pathway databases

ReactomeiR-DRE-917937, Iron uptake and transport

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q503V1

Family and domain databases

InterProiView protein in InterPro
IPR043205, CYB561/CYBRD1-like
IPR028838, Cybrd1
IPR006593, Cyt_b561/ferric_Rdtase_TM
PANTHERiPTHR10106, PTHR10106, 1 hit
PTHR10106:SF12, PTHR10106:SF12, 1 hit
PfamiView protein in Pfam
PF03188, Cytochrom_B561, 1 hit
SMARTiView protein in SMART
SM00665, B561, 1 hit
PROSITEiView protein in PROSITE
PS50939, CYTOCHROME_B561, 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 nameiCYBR1_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: Q503V1
<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: January 15, 2008
Last sequence update: June 7, 2005
Last modified: June 2, 2021
This is version 85 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 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
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