Glycogen synthases kinase 3 alpha (GSK3-alpha) is a multifunctional Serine/Threonine protein kinase, one of two isoforms of GSK3 (1). Originally identified as a regulator of glycogen synthase, it has been shown to be involved in the hormonal control of several regulatory factors and transcription factors. GSK3-alpha activity is down regulated by phosphorylation on Serine 21 by PKB, or activated by phosphorylation on Tyrosine 279 (2). Insulin inactivates GSK3-alpha by rapid phosphorylation which leads to activation of Glycogen Synthase in the cells (3). GSK3-alpha activitiy has been linked to a pathogenic mechanism in Alzheimer's disease (4).

Long Name

Glycogen Synthase Kinase 3 alpha

Alternate Names

GSK3 alpha, GSK3A

Gene Symbol

GSK3A

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Product Specific Notices for GSK-3 alpha [p Ser21] Antibody [Janelia Fluor® 549]

Sold under license from the Howard Hughes Medical Institute, Janelia Research Campus.

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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GSK-3 alpha [p Ser21] Antibody [Janelia Fluor® 549]

Novus Biologicals, part of Bio-Techne | Catalog # AF4125I

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Background: GSK-3 alpha