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GLYCTK, also known as Glycerate kinase, has 7 isoforms, a 523 amino acid isoform 1 that is 55 kDa, a 234 amino acid isoform 2 that is 25 k Da, a 457 amino acid isoform 3 that is 48 kDa, a 367 amino acid isoform 4 that is 39 kDa, a 240 amino acid isoform 5 that is 25 kDa, a 205 amino acid isoform 6 that is 22 kDa, and a 187 amino acid isoform 7 that is 20 kDa; acts as a catalyzer of the phosphorylation of (R)-glycerate and may be involved in serine degradation and fructose metabolism. This protein is being studied for its involvement in microcephaly and seizures. GLYCTK has been linked to glycine, serine and threonine metabolism, glycerolipid metabolism, and glyoxylate and dicarboxylate metabolism pathways where interacts with TRIP13, ALDH1B1, ALDH2, ALDH7A1, and GRHPR proteins.
