PRDX6
Peroxiredoxin-6
Also known as: 1-Cys, aiPLA2, AOP2, KIAA0106, MGC46173, NSGPx, p29, PRDX6_HUMAN, PRX
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P30041
- Gene
- PRDX6
- Ensembl
- ENSG00000117592
- Chromosome
- 1
- Canonical length
- 224 aa
- Protein class
- Enzymes, Metabolic proteins, Plasma proteins, Predicted intracellular proteins
- Subcellular location
- Plasma membrane,Cytosol
- Quaternary structure
- Homodimer
OverviewNCBI Gene
The protein encoded by this gene is a member of the thiol-specific antioxidant protein family. This protein is a bifunctional enzyme with two distinct active sites. It is involved in redox regulation of the cell; it can reduce H(2)O(2) and short chain organic, fatty acid, and phospholipid hydroperoxides. It may play a role in the regulation of phospholipid turnover as well as in protection against oxidative injury. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
224 residues, UniProt reviewed canonical sequence.
>P30041|PRDX6
1 MPGGLLLGDV APNFEANTTV GRIRFHDFLG DSWGILFSHP RDFTPVCTTE LGRAAKLAPE
61 FAKRNVKLIA LSIDSVEDHL AWSKDINAYN CEEPTEKLPF PIIDDRNREL AILLGMLDPA
121 EKDEKGMPVT ARVVFVFGPD KKLKLSILYP ATTGRNFDEI LRVVISLQLT AEKRVATPVD
181 WKDGDSVMVL PTIPEEEAKK LFPKGVFTKE LPSGKKYLRY TPQPLocalizationUniProt · AlphaFold · HPA
Whether an antibody against PRDX6 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.27
- Highest tissue expression
- 566 nTPM
Expression across tissuesHPA
Tissue
- skeletal muscle: 566 nTPM
- liver: 451 nTPM
- tongue: 358 nTPM
- adipose tissue: 320 nTPM
- heart muscle: 261 nTPM
- breast: 219 nTPM
Single-cell type
- esophageal apical cells: 2,464 nCPM
- colonocytes: 1,455 nCPM
- hepatocytes: 1,374 nCPM
- extravillous trophoblasts: 1,284 nCPM
- syncytiotrophoblasts: 1,280 nCPM
- platelets: 1,132 nCPM
Immune cell
- plasmacytoid DC: 80 nTPM
- total PBMC: 58 nTPM
- myeloid DC: 54 nTPM
- naive CD8 T-cell: 48 nTPM
- classical monocyte: 43 nTPM
- intermediate monocyte: 40 nTPM
Brain region
- midbrain: 146 nTPM
- hypothalamus: 144 nTPM
- cerebellum: 144 nTPM
- medulla oblongata: 125 nTPM
- hippocampal formation: 114 nTPM
- white matter: 114 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about PRDX6.
Disease | ImmuneIEDB
Conditions an epitope on PRDX6 was assayed in.
- urinary bladder cancer T cell
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 1.6
- gnomAD pLI
- 0
- gnomAD missense Z
- 1.47
- DepMap mean gene effect
- -0.08
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 9% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cell redox homeostasis
- cellular oxidant detoxification
- glycerophospholipid catabolic process
- hydrogen peroxide catabolic process
- positive regulation of mRNA splicing, via spliceosome
- response to oxidative stress
Molecular functions
- 1-acylglycerophosphocholine O-acyltransferase activity
- cadherin binding
- calcium-independent phospholipase A2 activity
- glutathione peroxidase activity
- identical protein binding
- peroxidase activity
- peroxiredoxin activity
- phospholipase A2 activity
- ubiquitin protein ligase binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of PRDX6 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads PRDX6 as an antibody target. Whether an autoantibody or antibody against PRDX6 could matter depends on whether native PRDX6 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
PRDX6 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label PRDX6 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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