oga-1;pdk-1

O-GlcNAc selective N-Acetyl-beta-D-glucosaminidase (O-GlcNAcase)

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Locus: CELE_T20B5.3

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Wormbase description: oga-1 encodes an ortholog of mammalian O-linked N-acetylglucosamine (O-GlcNAc)-selective N-acetyl-beta-D-glucosaminidase (O-GlcNAcase); a polymorphism of OGA-1's human ortholog MGEA5 is associated with type 2 diabetes, and OGA-1 appears to be required for fine-tuning of insulin signalling; oga-1(ok1207) mutants are viable and fertile but accumulate O-GlcNAc on nuclear pores and other proteins, while showing S/T-phosphorylation of proteins, increased GSK-3beta activity, excess glycogen and trehalose, and decreased lipid storage; oga-1(ok1207) mutations enhance the Daf-c phenotype of daf-2(e1370ts) alleles even under conditions where oga-1(ok1207) alone diminishes dauer formation.

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3-phosphoinositide-dependent protein kinase 1

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Locus: CELE_H42K12.1

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Wormbase description: pdk-1 encodes the C. elegans 3-phosphoinositide-dependent kinase 1 ortholog; PDK-1 is a component of the DAF-2/insulin receptor-like signaling pathway and accordingly, functions to regulate such processes as dauer larvae formation, longevity, and salt chemotaxis learning; genetic analyses indicate that, in regulating dauer arrest, PDK-1 acts downstream of AGE-1/PI3K and upstream of the AKT-1 and AKT-2 kinases; a PDK-1::GFP fusion protein is expressed broadly beginning in late stage embryos and continuing on through adulthood; expression is seen in head, tail, and ventral cord motor neurons, pharyngeal tissues, hypodermal cells, the intestine, and the somatic gonad; in neurons, the PDK-1::GFP localizes to cell bodies and processes, with occasional expression seen in some neuronal nuclei.

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