Summary

Name PAFAH1B2
Full Name Platelet-activating factor acetylhydrolase IB subunit alpha2
Synonyms PAF acetylhydrolase 30 kDa subunit, PAF-AH 30 kDa subunit, PAF-AH subunit beta, PAFAH subunit beta | PAFAHB
Primary ID P68402
Links - -
Type protein
Relations 1
Function Alpha2 catalytic subunit of the cytosolic type I platelet-activating factor (PAF) acetylhydrolase (PAF-AH (I)) heterotetrameric enzyme that catalyzes the hydrolyze of the acetyl group at the sn-2 position of PAF and its analogs and modulates the action of PAF. The activity and substrate specificity of PAF-AH (I) are affected by its subunit composition. The alpha2/alpha2 homodimer (PAFAH1B2/PAFAH1B2 homodimer) hydrolyzes PAF and 1-O-alkyl-2-acetyl-sn-glycero-3-phosphorylethanolamine (AAGPE) more efficiently than 1-O-alkyl-2-acetyl-sn-glycero-3-phosphoric acid (AAGPA). In contrast, the alpha1/alpha2 heterodimer(PAFAH1B3/PAFAH1B3 heterodimer) hydrolyzes AAGPA more efficiently than PAF, but has little hydrolytic activity towards AAGPE (By similarity). May play a role in male germ cell meiosis during the late pachytenestage and meiotic divisions as well as early spermiogenesis (By similarity).

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Regulator Mechanism target score
+ up-regulates img/indirect-activation.png APP 0.2
Publications: 1 Organism: Homo Sapiens