P4HA2

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Identifiers
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External IDsGeneCards: [1]
Orthologs
SpeciesHumanMouse
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RefSeq (protein)

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Prolyl 4-hydroxylase subunit alpha-2 is an enzyme that in humans is encoded by the P4HA2 gene.[1][2][3]

This gene encodes a component of prolyl 4-hydroxylase, a key enzyme in collagen synthesis composed of two identical alpha subunits and two beta subunits. The encoded protein is one of several different types of alpha subunits and provides the major part of the catalytic site of the active enzyme. In collagen and related proteins, prolyl 4-hydroxylase catalyzes the formation of 4-hydroxyproline that is essential to the proper three-dimensional folding of newly synthesized procollagen chains. Alternatively spliced transcript variants encoding different isoforms have been described.[3]

References

Notes

  1. Annunen P, Helaakoski T, Myllyharju J, Veijola J, Pihlajaniemi T, Kivirikko KI (Aug 1997). "Cloning of the human prolyl 4-hydroxylase alpha subunit isoform alpha(II) and characterization of the type II enzyme tetramer. The alpha(I) and alpha(II) subunits do not form a mixed alpha(I)alpha(II)beta2 tetramer". J Biol Chem. 272 (28): 17342–8. doi:10.1074/jbc.272.28.17342. PMID 9211872.
  2. Frazer KA, Ueda Y, Zhu Y, Gifford VR, Garofalo MR, Mohandas N, Martin CH, Palazzolo MJ, Cheng JF, Rubin EM (Aug 1997). "Computational and biological analysis of 680 kb of DNA sequence from the human 5q31 cytokine gene cluster region". Genome Res. 7 (5): 495–512. doi:10.1101/gr.7.5.495. PMID 9149945.
  3. 3.0 3.1 "Entrez Gene: P4HA2 procollagen-proline, 2-oxoglutarate 4-dioxygenase (proline 4-hydroxylase), alpha polypeptide II".

Further reading