PHYH
Phytanoyl-CoA dioxygenase, peroxisomal
Also known as: PAHX, PAHX_HUMAN, PHYH1, RD
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O14832
- Gene
- PHYH
- Ensembl
- ENSG00000107537
- Chromosome
- 10
- Canonical length
- 338 aa
- Protein class
- Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Potential drug targets, Predicted intracellular proteins
OverviewNCBI Gene
This gene is a member of the PhyH family and encodes a peroxisomal protein that is involved in the alpha-oxidation of 3-methyl branched fatty acids. Specifically, this protein converts phytanoyl-CoA to 2-hydroxyphytanoyl-CoA. Mutations in this gene have been associated with Refsum disease (RD) and deficient protein activity has been associated with Zellweger syndrome and rhizomelic chondrodysplasia punctata. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
338 residues, UniProt reviewed canonical sequence.
>O14832|PHYH
1 MEQLRAAARL QIVLGHLGRP SAGAVVAHPT SGTISSASFH PQQFQYTLDN NVLTLEQRKF
61 YEENGFLVIK NLVPDADIQR FRNEFEKICR KEVKPLGLTV MRDVTISKSE YAPSEKMITK
121 VQDFQEDKEL FRYCTLPEIL KYVECFTGPN IMAMHTMLIN KPPDSGKKTS RHPLHQDLHY
181 FPFRPSDLIV CAWTAMEHIS RNNGCLVVLP GTHKGSLKPH DYPKWEGGVN KMFHGIQDYE
241 ENKARVHLVM EKGDTVFFHP LLIHGSGQNK TQGFRKAISC HFASADCHYI DVKGTSQENI
301 EKEVVGIAHK FFGAENSVNL KDIWMFRARL VKGERTNLLocalizationUniProt · AlphaFold · HPA
Whether an antibody against PHYH 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)
- 0.29
- Highest tissue expression
- 624 nTPM
Expression across tissuesHPA
Tissue
- liver: 624 nTPM
- skeletal muscle: 453 nTPM
- tongue: 385 nTPM
- kidney: 179 nTPM
- heart muscle: 118 nTPM
- adrenal gland: 64 nTPM
Single-cell type
- cytotrophoblasts: 190 nCPM
- hepatocytes: 172 nCPM
- enterocytes: 137 nCPM
- syncytiotrophoblasts: 91 nCPM
- parietal cells: 87 nCPM
- cholangiocytes: 83 nCPM
Immune cell
- classical monocyte: 19 nTPM
- MAIT T-cell: 18 nTPM
- basophil: 16 nTPM
- myeloid DC: 16 nTPM
- plasmacytoid DC: 14 nTPM
- intermediate monocyte: 14 nTPM
Brain region
- choroid plexus: 35 nTPM
- thalamus: 23 nTPM
- cerebral cortex: 21 nTPM
- midbrain: 19 nTPM
- hypothalamus: 19 nTPM
- basal ganglia: 18 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about PHYH.
Disease | AllUniProt
Conditions PHYH is implicated in, by any mechanism.
- Refsum disease (RD) MIM:266500
Disease | GeneticClinVar
71 pathogenic / likely-pathogenic of 533 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Phytanic acid storage disease
- REFSUM DISEASE, ADULT, 1
- Retinal dystrophy
- PHYH-related disorder
- Retinitis pigmentosa
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)
- 1.12
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.03
- DepMap mean gene effect
- -0.01
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- 2-oxoglutarate metabolic process
- fatty acid alpha-oxidation
- isoprenoid metabolic process
- methyl-branched fatty acid metabolic process
- 2-oxobutyrate catabolic process
Molecular functions
- carboxylic acid binding
- ferrous iron binding
- L-ascorbic acid binding
- phytanoyl-CoA dioxygenase activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Phytanoyl-CoA dioxygenase-like
- Phytanoyl-CoA dioxygenase (PhyH)
- Phytanoyl-CoA dioxygenase
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of PHYH 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 PHYH as an antibody target. Whether an autoantibody or antibody against PHYH could matter depends on whether native PHYH is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
PHYH 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 PHYH as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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