pafah1b1b - platelet-activating factor acetylhydrolase 1b, regulatory subunit 1b (zebrafish)
Gene
Symbol
Taxonomy
Dates
- Create:2016-09-14
- Modify:2025-01-18
Description
Predicted to enable dynein complex binding activity; microtubule plus-end binding activity; and protein heterodimerization activity. Acts upstream of or within several processes, including apical protein localization; brain morphogenesis; and photoreceptor cell maintenance. Located in cytoplasm. Is expressed in several structures, including bone tissue; heart; liver; nervous system; and pleuroperitoneal region. Human ortholog(s) of this gene implicated in lissencephaly and lissencephaly 1. Orthologous to human PAFAH1B1 (platelet activating factor acetylhydrolase 1b regulatory subunit 1).
- Lis1a
- lissencephaly-1 homolog B
Regulatory subunit (beta subunit) of the cytosolic type I platelet-activating factor (PAF) acetylhydrolase (PAF-AH (I)), an enzyme that catalyzes the hydrolyze of the acetyl group at the sn-2 position of PAF and its analogs and participates in the PAF inactivation. Regulates the PAF-AH (I) activity in a catalytic dimer composition-dependent manner (By similarity). Positively regulates the activity of the minus-end directed microtubule motor protein dynein. May enhance dynein-mediated microtubule sliding by targeting dynein to the microtubule plus end. Required for several dynein- and microtubule-dependent processes such as the maintenance of Golgi integrity, the peripheral transport of microtubule fragments and the coupling of the nucleus and centrosome. May be required for proliferation of neuronal precursors and neuronal migration (By similarity). Involved in the positioning of nuclei in photoreceptor cells.
Highly accurate protein structure prediction with AlphaFold. Nature. 2021 Aug;596(7873):583-589. DOI:10.1038/s41586-021-03819-2. PMID:34265844; PMCID:PMC8371605
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