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Aliases for PHYH Gene

Aliases for PHYH Gene

  • Phytanoyl-CoA 2-Hydroxylase 2 3 5
  • Phytanoyl-CoA Alpha-Hydroxylase 3 4
  • Phytanic Acid Oxidase 3 4
  • EC 4 61
  • PAHX 3 4
  • Phytanoyl-CoA Hydroxylase (Refsum Disease) 2
  • Phytanoyl-CoA 2 Oxoglutarate Dioxygenase 3
  • Phytanoyl-CoA Dioxygenase, Peroxisomal 3
  • Phytanoil-CoA Alpha Hydroxylase 3
  • Phytanoyl-CoA Dioxygenase 2
  • Phytanoyl-CoA Hydroxylase 2
  • Refsum Disease 2
  • LNAP1 3
  • PHYH1 3
  • PhyH 4
  • LN1 3
  • RD 3

External Ids for PHYH Gene

Previous GeneCards Identifiers for PHYH Gene

  • GC10M013302
  • GC10M013470
  • GC10M013323
  • GC10M013359
  • GC10M013319
  • GC10M013232

Summaries for PHYH Gene

Entrez Gene Summary for PHYH 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]

GeneCards Summary for PHYH Gene

PHYH (Phytanoyl-CoA 2-Hydroxylase) is a Protein Coding gene. Diseases associated with PHYH include Refsum Disease and Phyh-Related Refsum Disease. Among its related pathways are Peroxisome and Peroxisomal lipid metabolism. GO annotations related to this gene include electron carrier activity and cofactor binding.

UniProtKB/Swiss-Prot for PHYH Gene

  • Converts phytanoyl-CoA to 2-hydroxyphytanoyl-CoA.

No data available for Tocris Summary , Gene Wiki entry , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for PHYH Gene

Genomics for PHYH Gene

Regulatory Elements for PHYH Gene

Enhancers for PHYH Gene
GeneHancer Identifier Enhancer Score Enhancer Sources Gene-Enhancer Score TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor Binding Sites within enhancer Gene Targets for Enhancer
- Elite enhancer/Elite enhancer-gene association

Enhancers around PHYH on UCSC Golden Path with GeneCards custom track

Promoters for PHYH Gene
Ensembl Regulatory Elements (ENSRs) TSS Distance (bp) Size (bp) Binding Sites for Transcription Factors within promoters

Genomic Location for PHYH Gene

13,277,796 bp from pter
13,302,412 bp from pter
24,617 bases
Minus strand

Genomic View for PHYH Gene

Genes around PHYH on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
PHYH Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for PHYH Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for PHYH Gene

Proteins for PHYH Gene

  • Protein details for PHYH Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Phytanoyl-CoA dioxygenase, peroxisomal
    Protein Accession:
    Secondary Accessions:
    • A8MTS8
    • B1ALH5

    Protein attributes for PHYH Gene

    338 amino acids
    Molecular mass:
    38538 Da
    Name=Fe cation; Xref=ChEBI:CHEBI:24875;
    Name=L-ascorbate; Xref=ChEBI:CHEBI:38290;
    Quaternary structure:
    • Interacts specifically with the immunophilin FKBP52 and PHYHIP.

    Three dimensional structures from OCA and Proteopedia for PHYH Gene

    Alternative splice isoforms for PHYH Gene


neXtProt entry for PHYH Gene

Selected DME Specific Peptides for PHYH Gene

Post-translational modifications for PHYH Gene

  • Ubiquitination at Lys 108 and Lys 310
  • Modification sites at PhosphoSitePlus

Antibody Products

  • Abcam antibodies for PHYH

Domains & Families for PHYH Gene

Protein Domains for PHYH Gene


Suggested Antigen Peptide Sequences for PHYH Gene

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the PhyH family.
  • Belongs to the PhyH family.
genes like me logo Genes that share domains with PHYH: view

No data available for Gene Families for PHYH Gene

Function for PHYH Gene

Molecular function for PHYH Gene

GENATLAS Biochemistry:
phytanoyl-CoA hydroxylase,41.2kDa,FKBP-associated protein,containing a cleavable peroxisomal targetting signal type 2 (PTS2)
UniProtKB/Swiss-Prot CatalyticActivity:
Phytanoyl-CoA + 2-oxoglutarate + O(2) = 2-hydroxyphytanoyl-CoA + succinate + CO(2).
UniProtKB/Swiss-Prot Function:
Converts phytanoyl-CoA to 2-hydroxyphytanoyl-CoA.

Enzyme Numbers (IUBMB) for PHYH Gene

Gene Ontology (GO) - Molecular Function for PHYH Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0003824 catalytic activity IEA --
GO:0005515 protein binding IEA,IPI 9326939
GO:0031418 L-ascorbic acid binding IEA --
GO:0046872 metal ion binding IEA --
GO:0048037 cofactor binding IDA 9326939
genes like me logo Genes that share ontologies with PHYH: view
genes like me logo Genes that share phenotypes with PHYH: view

Human Phenotype Ontology for PHYH Gene

HPO Id HPO Name Alternative Ids Definition Synonyms

Animal Models for PHYH Gene

MGI Knock Outs for PHYH:

Animal Model Products

CRISPR Products

miRNA for PHYH Gene

miRTarBase miRNAs that target PHYH

Inhibitory RNA Products

Clone Products

Flow Cytometry Products

No data available for Transcription Factor Targets and HOMER Transcription for PHYH Gene

Localization for PHYH Gene

Subcellular locations from UniProtKB/Swiss-Prot for PHYH Gene


Subcellular locations from

Jensen Localization Image for PHYH Gene COMPARTMENTS Subcellular localization image for PHYH gene
Compartment Confidence
peroxisome 5
mitochondrion 3
cytosol 2
extracellular 2
cytoskeleton 1
nucleus 1
plasma membrane 1

Gene Ontology (GO) - Cellular Components for PHYH Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005739 mitochondrion IEA --
GO:0005777 peroxisome IEA,IDA 9326939
GO:0005782 peroxisomal matrix TAS --
genes like me logo Genes that share ontologies with PHYH: view

Pathways & Interactions for PHYH Gene

genes like me logo Genes that share pathways with PHYH: view

Pathways by source for PHYH Gene

1 KEGG pathway for PHYH Gene

UniProtKB/Swiss-Prot O14832-PAHX_HUMAN

  • Pathway: Lipid metabolism; fatty acid metabolism.

Gene Ontology (GO) - Biological Process for PHYH Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0001561 fatty acid alpha-oxidation TAS --
GO:0006720 isoprenoid metabolic process IDA 11555634
GO:0097089 methyl-branched fatty acid metabolic process IDA 10744784
genes like me logo Genes that share ontologies with PHYH: view

No data available for SIGNOR curated interactions for PHYH Gene

Drugs & Compounds for PHYH Gene

(7) Drugs for PHYH Gene - From: DrugBank, HMDB, and Novoseek

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
Vitamin C Approved Nutra Target 488,488
Antihemophilic Factor (Recombinant) Approved, Investigational Pharma Target, antagonist 0
Carbon dioxide Approved, Vet_approved Pharma 0
Oxygen Approved, Vet_approved Pharma 0
Succinic acid Approved Nutra Full agonist, Agonist 0

(9) Additional Compounds for PHYH Gene - From: HMDB and Novoseek

Name Synonyms Role CAS Number PubChem IDs PubMed IDs
  • (3S)-2-hydroxyphytanoyl-CoA
  • (3S)-2-hydroxyphytanoyl-Coenzyme A
  • (3S,7R,11R)-2-hydroxy-3,7,11,15-tetramethylhexadecanoyl-CoA
  • (3S,7R,11R)-2-hydroxy-3,7,11,15-tetramethylhexadecanoyl-Coenzyme A
  • 2-Hydroxyphytanoyl-CoA
  • Armco iron
  • Carbonyl iron
  • FE
  • Ferrovac e
  • Hematite
Oxoglutaric acid
  • 2-Ketoglutarate
  • 2-Ketoglutaric acid
  • 2-Oxo-1,5-pentanedioate
  • 2-Oxo-1,5-pentanedioic acid
  • 2-Oxoglutarate
  • 3,7,11,15-Tetramethyl hexadecanoyl CoA
  • 3,7,11,15-Tetramethyl hexadecanoyl coenzyme A
  • Phytanoyl CoA
  • Phytanoyl Coenzyme A
  • Phytanoyl-CoA
genes like me logo Genes that share compounds with PHYH: view

Transcripts for PHYH Gene

Unigene Clusters for PHYH Gene

Phytanoyl-CoA 2-hydroxylase:
Representative Sequences:

CRISPR Products

Inhibitory RNA Products

Clone Products

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for PHYH Gene

ExUns: 1 ^ 2 ^ 3 ^ 4a · 4b ^ 5 ^ 6a · 6b ^ 7a · 7b ^ 8 ^ 9 ^ 10
SP1: - -
SP2: -
SP3: - -
SP4: -

Relevant External Links for PHYH Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for PHYH Gene

mRNA expression in normal human tissues for PHYH Gene

mRNA differential expression in normal tissues according to GTEx for PHYH Gene

This gene is overexpressed in Muscle - Skeletal (x7.9) and Liver (x6.2).

Protein differential expression in normal tissues from HIPED for PHYH Gene

This gene is overexpressed in Gallbladder (34.2), Liver (15.1), and Fetal Liver (10.1).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, PaxDb, and MOPED for PHYH Gene

NURSA nuclear receptor signaling pathways regulating expression of PHYH Gene:


SOURCE GeneReport for Unigene cluster for PHYH Gene:


mRNA Expression by UniProt/SwissProt for PHYH Gene:

Tissue specificity: Expressed in liver, kidney, and T-cells, but not in spleen, brain, heart, lung and skeletal muscle.
genes like me logo Genes that share expression patterns with PHYH: view

Primer Products

No data available for mRNA expression in embryonic tissues and stem cells from LifeMap Discovery and Protein tissue co-expression partners for PHYH Gene

Orthologs for PHYH Gene

This gene was present in the common ancestor of animals.

Orthologs for PHYH Gene

Organism Taxonomy Gene Similarity Type Details
(Bos Taurus)
Mammalia PHYH 34
  • 83.48 (n)
  • 82.63 (a)
-- 35
  • 77 (a)
  • 83 (a)
(Canis familiaris)
Mammalia LOC478000 34
  • 79.98 (n)
  • 77.22 (a)
-- 35
  • 68 (a)
-- 35
  • 77 (a)
(Mus musculus)
Mammalia Phyh 34
  • 79.59 (n)
  • 78.11 (a)
Phyh 16
Phyh 35
  • 78 (a)
(Pan troglodytes)
Mammalia PHYH 34
  • 99.11 (n)
  • 98.82 (a)
  • 99 (a)
(Rattus norvegicus)
Mammalia Phyh 34
  • 79.49 (n)
  • 78.11 (a)
(Monodelphis domestica)
Mammalia PHYH 35
  • 73 (a)
(Ornithorhynchus anatinus)
Mammalia PHYH 35
  • 52 (a)
(Gallus gallus)
Aves PHYH 34
  • 65.97 (n)
  • 64.48 (a)
  • 61 (a)
(Anolis carolinensis)
Reptilia -- 35
  • 66 (a)
-- 35
  • 66 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia phyh 34
  • 68.42 (n)
  • 72.45 (a)
Str.15015 34
African clawed frog
(Xenopus laevis)
Amphibia Xl.17548 34
(Danio rerio)
Actinopterygii phyh 34
  • 68.17 (n)
  • 69.07 (a)
phyh 35
  • 67 (a)
PHYH (2 of 2) 35
  • 67 (a)
(Caenorhabditis elegans)
Secernentea ZK550.5 36
  • 51 (a)
CELE_ZK550.6 34
  • 62.12 (n)
  • 61.43 (a)
ZK550.5 35
  • 45 (a)
ZK550.6 35
  • 56 (a)
sea squirt
(Ciona intestinalis)
Ascidiacea Cin.4002 34
sea squirt
(Ciona savignyi)
Ascidiacea -- 35
  • 58 (a)
Species where no ortholog for PHYH was found in the sources mined by GeneCards:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • fruit fly (Drosophila melanogaster)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)

Evolution for PHYH Gene

Gene Tree for PHYH (if available)
Gene Tree for PHYH (if available)

Paralogs for PHYH Gene

No data available for Paralogs for PHYH Gene

Variants for PHYH Gene

Sequence variations from dbSNP and Humsavar for PHYH Gene

SNP ID Clin Chr 10 pos Sequence Context AA Info Type
rs104894179 Refsum disease (RD) 13,283,713(-) GTCAG(A/C)ATAAA reference, missense
VAR_005526 Refsum disease (RD)
rs28938169 - 13,298,236(-) CTCAT(C/T)CCACT intron-variant, reference, missense
VAR_017483 Refsum disease (RD)
rs28939672 Refsum disease (RD) 13,288,512(-) TGCAC(A/C)AGGAC intron-variant, reference, missense

Structural Variations from Database of Genomic Variants (DGV) for PHYH Gene

Variant ID Type Subtype PubMed ID
nsv472437 CNV novel sequence insertion 20440878
nsv831788 CNV loss 17160897

Variation tolerance for PHYH Gene

Residual Variation Intolerance Score: 69.3% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 4.55; 64.90% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for PHYH Gene

Human Gene Mutation Database (HGMD)
SNPedia medical, phenotypic, and genealogical associations of SNPs for

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for PHYH Gene

Disorders for PHYH Gene

MalaCards: The human disease database

(15) MalaCards diseases for PHYH Gene - From: OMIM, GeneTests, Orphanet, Swiss-Prot, DISEASES, Novoseek, and GeneCards

Disorder Aliases PubMed IDs
refsum disease
  • retinitis pigmentosa
phyh-related refsum disease
hodgkin's lymphoma, mixed cellularity
  • hodgkin lymphoma, mixed cellularity
rhizomelic chondrodysplasia punctata
  • chondrodysplasia punctata, rhizomelic
testicular infarct
  • infarction of testis
- elite association - COSMIC cancer census association via MalaCards
Search PHYH in MalaCards View complete list of genes associated with diseases


  • Refsum disease (RD) [MIM:266500]: A rare autosomal recessive peroxisomal disorder characterized by the accumulation of the branched-chain fatty acid, phytanic acid, in blood and tissues. Cardinal clinical features are retinitis pigmentosa, peripheral neuropathy, cerebellar ataxia, and elevated protein levels in the cerebrospinal fluid (CSF). Half of all patients exhibit generalized, mild to moderate ichthyosis resembling ichthyosis vulgaris. Less constant features are nerve deafness, anosmia, skeletal abnormalities, cataracts and cardiac impairment. {ECO:0000269 PubMed:10709665, ECO:0000269 PubMed:10767344, ECO:0000269 PubMed:9326939, ECO:0000269 PubMed:9326940}. Note=The disease is caused by mutations affecting the gene represented in this entry.

Relevant External Links for PHYH

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
Atlas of Genetics and Cytogenetics in Oncology and Haematology:
genes like me logo Genes that share disorders with PHYH: view

No data available for Genatlas for PHYH Gene

Publications for PHYH Gene

  1. Identification of PAHX, a Refsum disease gene. (PMID: 9326939) Mihalik S.J. … Gould S.J. (Nat. Genet. 1997) 2 3 4 22 65
  2. Structure of human phytanoyl-CoA 2-hydroxylase identifies molecular mechanisms of Refsum disease. (PMID: 16186124) McDonough M.A. … Schofield C.J. (J. Biol. Chem. 2005) 3 4 22 65
  3. Molecular basis of Refsum disease: sequence variations in phytanoyl- CoA hydroxylase (PHYH) and the PTS2 receptor (PEX7). (PMID: 14974078) Jansen G.A. … Wanders R.J.A. (Hum. Mutat. 2004) 3 4 22 65
  4. Human phytanoyl-CoA hydroxylase: resolution of the gene structure and the molecular basis of Refsum's disease. (PMID: 10767344) Jansen G.A. … Wanders R.J.A. (Hum. Mol. Genet. 2000) 3 4 22 65
  5. Phytanoyl-CoA hydroxylase deficiency. Enzymological and molecular basis of classical Refsum disease. (PMID: 10709665) Jansen G.A. … Wanders R.J.A. (Adv. Exp. Med. Biol. 1999) 3 4 22 65

Products for PHYH Gene

Sources for PHYH Gene

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