Protein O-mannosyl-transferase 1

Definition:

Transfers mannosyl residues to the hydroxyl group of serine or threonine residues. Coexpression of both POMT1 and POMT2 is necessary for enzyme activity, expression of either POMT1 or POMT2 alone is insufficient. Essentially dedicated to O-mannosylation of alpha-DAG1 and few other proteins but not of cadherins and protocaherins.

References:

[1]. Ida Signe Bohse Larsen, et al. Mammalian O-mannosylation of cadherins and plexins is independent of protein O-mannosyltransferases 1 and 2. J Biol Chem. 2017 Jul 7;292(27):11586-11598. [Content Brief]

[2]. Hiroshi Manya, et al. Demonstration of mammalian protein O-mannosyltransferase activity: coexpression of POMT1 and POMT2 required for enzymatic activity. Proc Natl Acad Sci U S A. 2004 Jan 13;101(2):500-5. [Content Brief]

[3]. Daniel Beltrán-Valero de Bernabé, et al. Mutations in the O-mannosyltransferase gene POMT1 give rise to the severe neuronal migration disorder Walker-Warburg syndrome. Am J Hum Genet. 2002 Nov;71(5):1033-43. [Content Brief]

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