FA2H

Protein-coding gene in the species Homo sapiens From Wikipedia, the free encyclopedia

Fatty acid 2-hydroxylase is a protein that in humans is encoded by the FA2H gene.[5]

AliasesFA2H, FAAH, FAH1, FAXDC1, SCS7, SPG35, fatty acid 2-hydroxylase
End74,774,831 bp[1]
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FA2H
Identifiers
AliasesFA2H, FAAH, FAH1, FAXDC1, SCS7, SPG35, fatty acid 2-hydroxylase
External IDsOMIM: 611026; MGI: 2443327; HomoloGene: 56284; GeneCards: FA2H; OMA:FA2H - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_024306

NM_178086

RefSeq (protein)

NP_077282

NP_835187

Location (UCSC)Chr 16: 74.71 – 74.77 MbChr 8: 112.07 – 112.12 Mb
PubMed search[3][4]
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Function

This gene encodes a protein that catalyzes the synthesis of 2-hydroxysphingolipids, a subset of sphingolipids that contain 2-hydroxy fatty acids. Sphingolipids play roles in many cellular processes and their structural diversity arises from modification of the hydrophobic ceramide moiety, such as by 2-hydroxylation of the N-acyl chain, and the existence of many different head groups.[5]

Mechanism of 2-hydroxylated sphingolipid generation. They are generated like their non-hydroxylated counterparts, except that fatty acids are hydroxylated by fatty acid 2-hydroxylase (FA2H) before being incorporated into dihydroceramide by ceramide synthases (CerS).

Clinical significance

Mutations in this gene have been associated with leukodystrophy dysmyelinating with hereditary spastic paraplegia type 35 (SPG35) with or without dystonia[5] as well as fatty acid hydroxylase-associated neurodegeneration.[6] The largest cohort with a detailed phenotypical description and a highly sensitive imaging phenotype ("WHAT"—white matter changes, hypointensity of the globus pallidus, ponto-cerebellar atrophy, and thin corpus callosum) was published in June 2019.[7]

FA2H has been shown to modulate cell differentiation in vitro. FA2H may be a Δ9-THC-regulated gene, as Δ9-THC induces differentiation signal(s) in poorly differentiated MDA-MB-231 cells.[8]

References

Further reading

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