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Entry version 138 (25 May 2022)
Sequence version 1 (01 May 2000)
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Protein

Chloroplast envelope quinone oxidoreductase homolog

Gene

CEQORH

Organism
Arabidopsis thaliana (Mouse-ear cress)
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

NADPH-dependent alpha,beta-unsaturated oxoene reductase reducing the double bond of medium-chain (C9) to long-chain (C18) reactive electrophile species deriving from poly-unsaturated fatty acid peroxides. The best substrates are 13-lipoxygenase-derived gamma-ketols, but is unable to reduce the double bond of short-chain alkenals and alkenones such as acrolein, crotonaldehyde, 3-buten-2-one, 4-hexen-3-one and trans-2-hexenal, or quinones such as duroquinone, decylubiquinone, coenzyme Q0, menadione, menaquinone and phylloquinone. Can use trans-2-nonenal, trans-3-decen-2-one, 4-hydroxynonenal, 12-oxo-10(E) dodecanoate (traumatin), 4-oxononenal, trans-1,3 diphenyl-2-propenone, trans-1,4-diphenyl-2-butene-1,4-dione, 9-oxo-12,13-epoxy-(10E)-octadecenoic acid (trans-EKODE-1b), 9-hydroxy-12-oxo-10(E)-octadecenoic acid, 9-Hydroxy-12-oxo-10(E),15(Z)-octadecadienoic acid and 9,13-dihydroxy-10-oxo-11-octadecenoic acid as substrates, but has no activity with 13(R,S)-hydroperoxy-9(Z),11(E)-octadecadienoic acid (13-HPOD), 9(S),12(S),13(S)-trihydroxy-10(E)-octadecenoic acid, 13-hydroxy-12-oxo-9(Z)-octadecenoic acid, 9-oxo-10(E),12(Z)-octadecadienoic acid (9-KODE), 13-oxo-9(Z),11(E)-octadecadienoic acid (13-KODE) and 12-oxo-10,15(Z)-phytodienoic acid (12-OPDA).

1 Publication

Miscellaneous

The trimeric TOC159/75/34 complex is not involved in chloroplast import of CEQORH.1 Publication

<p>This subsection of the 'Function' section describes biophysical and chemical properties, such as maximal absorption, kinetic parameters, pH dependence, redox potentials and temperature dependence.<p><a href='/help/biophysicochemical_properties' target='_top'>More...</a></p>Kineticsi

kcat is 14 sec(-1) for 4-oxo-nonenal. kcat is 4.5 sec(-1) for trans-1,4-diphenyl-2-butene-1,4-dione. kcat is 6 sec(-1) for 9-hydroxy-12-oxo-10(E)-octadecenoic acid. kcat is 3 sec(-1) for 9-Hydroxy-12-oxo-10(E),15(Z)-octadecadienoic acid.1 Publication
  1. KM=200 µM for 4-oxo-nonenal1 Publication
  2. KM=9 µM for trans-1,4-diphenyl-2-butene-1,4-dione1 Publication
  3. KM=14 µM for 9-hydroxy-12-oxo-10(E)-octadecenoic acid1 Publication
  4. KM=10 µM for 9-Hydroxy-12-oxo-10(E),15(Z)-octadecadienoic acid1 Publication

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<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 sitei58SubstrateCombined sources1 Publication1

<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
LigandNAD

<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:
Chloroplast envelope quinone oxidoreductase homolog1 Publication (EC:1.3.1.-1 Publication)
Short name:
ceQORH1 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:CEQORH1 Publication
Ordered Locus Names:At4g13010Imported
ORF Names:F25G13_100Imported
<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>OrganismiArabidopsis thaliana (Mouse-ear cress)
<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 identifieri3702 [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 lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliopsidaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
<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
  • UP000006548 <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: Chromosome 4

Organism-specific databases

Arabidopsis Information Portal

More...
Araporti
AT4G13010

The Arabidopsis Information Resource

More...
TAIRi
locus:2123206, AT4G13010

<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

Keywords - Cellular componenti

Chloroplast, Membrane, Plastid, Plastid inner 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_00001609151 – 329Chloroplast envelope quinone oxidoreductase homologAdd BLAST329

Proteomic databases

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

More...
PaxDbi
Q9SV68

PRoteomics IDEntifications database

More...
PRIDEi
Q9SV68

ProteomicsDB: a multi-organism proteome resource

More...
ProteomicsDBi
236602

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the 'Expression' section reports the experimentally proven effects of inducers and repressors (usually chemical compounds or environmental factors) on the level of protein (or mRNA) expression (up-regulation, down-regulation, constitutive expression).<p><a href='/help/induction' target='_top'>More...</a></p>Inductioni

Not regulated by 2,6-dimethoxy-p-benzoquinone (DMBQ).1 Publication

Gene expression databases

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
Q9SV68, baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
Q9SV68, AT

<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 or homotetramer (PubMed:25849509). Transition to monomer upon NADPH binding (PubMed:25849509).

Interacts with calmodulin (PubMed:23549413).

Interacts with HP30-1, HP30-2 and HP20 (PubMed:24248378).

3 Publications

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
3702.AT4G13010.1

<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

Secondary structure

1329
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

AlphaFold Protein Structure Database

More...
AlphaFoldDBi
Q9SV68

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

More...
SMRi
Q9SV68

Database of comparative protein structure models

More...
ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

More...
PDBe-KBi
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

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

A nonterminal hydrophilic domain (59-100) is essential for targeting to the chloroplast. The C-terminal part (101-329) is necessary and sufficient to select for the import site.1 Publication

<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

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1198, Eukaryota

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_026673_3_3_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q9SV68

Identification of Orthologs from Complete Genome Data

More...
OMAi
MKAWLYS

Database of Orthologous Groups

More...
OrthoDBi
727365at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q9SV68

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR013154, ADH_N
IPR011032, GroES-like_sf
IPR036291, NAD(P)-bd_dom_sf
IPR020843, PKS_ER

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF08240, ADH_N, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00829, PKS_ER, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF50129, SSF50129, 1 hit
SSF51735, SSF51735, 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.

Q9SV68-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MAGKLMHALQ YNSYGGGAAG LEHVQVPVPT PKSNEVCLKL EATSLNPVDW
60 70 80 90 100
KIQKGMIRPF LPRKFPCIPA TDVAGEVVEV GSGVKNFKAG DKVVAVLSHL
110 120 130 140 150
GGGGLAEFAV ATEKLTVKRP QEVGAAEAAA LPVAGLTALQ ALTNPAGLKL
160 170 180 190 200
DGTGKKANIL VTAASGGVGH YAVQLAKLAN AHVTATCGAR NIEFVKSLGA
210 220 230 240 250
DEVLDYKTPE GAALKSPSGK KYDAVVHCAN GIPFSVFEPN LSENGKVIDI
260 270 280 290 300
TPGPNAMWTY AVKKITMSKK QLVPLLLIPK AENLEFMVNL VKEGKVKTVI
310 320
DSKHPLSKAE DAWAKSIDGH ATGKIIVEP
Length:329
Mass (Da):34,436
Last modified:May 1, 2000 - 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:i12F5ED95B5F081D6
GO

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
AL079349 Genomic DNA Translation: CAB45500.1
AL161535 Genomic DNA Translation: CAB78343.1
CP002687 Genomic DNA Translation: AEE83213.1
AY045857 mRNA Translation: AAK76531.1
AF412068 mRNA Translation: AAL06521.1
AY117154 mRNA Translation: AAM51229.1
AY056396 mRNA Translation: AAL08252.1

Protein sequence database of the Protein Information Resource

More...
PIRi
T10203

NCBI Reference Sequences

More...
RefSeqi
NP_193037.1, NM_117370.3

Genome annotation databases

Ensembl plant genome annotation project

More...
EnsemblPlantsi
AT4G13010.1; AT4G13010.1; AT4G13010

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
826914

Gramene; a comparative resource for plants

More...
Gramenei
AT4G13010.1; AT4G13010.1; AT4G13010

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ath:AT4G13010

<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
AL079349 Genomic DNA Translation: CAB45500.1
AL161535 Genomic DNA Translation: CAB78343.1
CP002687 Genomic DNA Translation: AEE83213.1
AY045857 mRNA Translation: AAK76531.1
AF412068 mRNA Translation: AAL06521.1
AY117154 mRNA Translation: AAM51229.1
AY056396 mRNA Translation: AAL08252.1
PIRiT10203
RefSeqiNP_193037.1, NM_117370.3

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
5A3JX-ray2.78A/B/C/D/E/F/G/H/I/J/K/L1-329[»]
5A3VX-ray2.34A/B1-329[»]
5A4DX-ray2.81A/B/C/D/E/F/G/H1-329[»]
AlphaFoldDBiQ9SV68
SMRiQ9SV68
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

STRINGi3702.AT4G13010.1

Proteomic databases

PaxDbiQ9SV68
PRIDEiQ9SV68
ProteomicsDBi236602

Genome annotation databases

EnsemblPlantsiAT4G13010.1; AT4G13010.1; AT4G13010
GeneIDi826914
GrameneiAT4G13010.1; AT4G13010.1; AT4G13010
KEGGiath:AT4G13010

Organism-specific databases

AraportiAT4G13010
TAIRilocus:2123206, AT4G13010

Phylogenomic databases

eggNOGiKOG1198, Eukaryota
HOGENOMiCLU_026673_3_3_1
InParanoidiQ9SV68
OMAiMKAWLYS
OrthoDBi727365at2759
PhylomeDBiQ9SV68

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q9SV68

Gene expression databases

ExpressionAtlasiQ9SV68, baseline and differential
GenevisibleiQ9SV68, AT

Family and domain databases

InterProiView protein in InterPro
IPR013154, ADH_N
IPR011032, GroES-like_sf
IPR036291, NAD(P)-bd_dom_sf
IPR020843, PKS_ER
PfamiView protein in Pfam
PF08240, ADH_N, 1 hit
SMARTiView protein in SMART
SM00829, PKS_ER, 1 hit
SUPFAMiSSF50129, SSF50129, 1 hit
SSF51735, SSF51735, 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 nameiQORH_ARATH
<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: Q9SV68
<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 7, 2005
Last sequence update: May 1, 2000
Last modified: May 25, 2022
This is version 138 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 programPlant 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, Reference proteome

Documents

  1. Arabidopsis thaliana
    Arabidopsis thaliana: entries and gene names
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  3. SIMILARITY comments
    Index of protein domains and families
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