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MitoProteome Human Mitochondrial Protein Database
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Related Proteins
MT001035
UniProt Annotations
Entry Information
Gene Name
coenzyme Q4
Protein Entry
COQ4_HUMAN
UniProt ID
Q9Y3A0
Species
Human
Comments
Comment type
Description
Alternative Products
Event=Alternative splicing; Named isoforms=2; Name=1; IsoId=Q9Y3A0-1; Sequence=Displayed; Name=2; IsoId=Q9Y3A0-2; Sequence=VSP_036866;
Function
Component of the coenzyme Q biosynthetic pathway. May play a role in organizing a multi-subunit COQ enzyme complex required for coenzyme Q biosynthesis. Required for steady-state levels of other COQ polypeptides. {ECO:0000255|HAMAP- Rule:MF_03111, ECO:0000269|PubMed:18474229}.
Pathway
Cofactor biosynthesis; ubiquinone biosynthesis. {ECO:0000255|HAMAP-Rule:MF_03111}.
Similarity
Belongs to the COQ4 family. {ECO:0000255|HAMAP- Rule:MF_03111}.
Subcellular Location
Isoform 1: Mitochondrion inner membrane; Peripheral membrane protein; Matrix side.
Subunit
Component of a multi-subunit COQ enzyme complex, composed of at least COQ3, COQ4, COQ5, COQ6, COQ7 and COQ9. {ECO:0000255|HAMAP-Rule:MF_03111}.
Tissue Specificity
Expressed ubiquitously, but at high levels in liver, lung and pancreas. {ECO:0000269|PubMed:18474229}.
MitoProteome Human Mitochondrial Protein Database
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