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Thyroid cancer and a few cases of colorectal, urothelial and liver cancers showed moderate cytoplasmic positivity. Remaining malignant tissues were mostly negative or weakly stained.
Weak to moderate cytoplasmic positivity was observed in several malignancies. A few cases of thyroid papillary adenocarcinomas showed strong immunoreactivity while endometrial and renal cancers were mostly negative.
Prostate cancers and several malignant melanomas, breast and colorectal cancers displayed moderate to strong cytoplasmic positivity combined with cases of membranous immunoreactivity. Remaining malignancies were weakly stained or negative.
GENE INFORMATION
Gene name
GAK (HGNC Symbol)
Synonyms
DNAJC26
Description
Cyclin G associated kinase (HGNC Symbol)
Entrez gene summary
In all eukaryotes, the cell cycle is governed by cyclin-dependent protein kinases (CDKs), whose activities are regulated by cyclins and CDK inhibitors in a diverse array of mechanisms that involve the control of phosphorylation and dephosphorylation of Ser, Thr or Tyr residues. Cyclins are molecules that possess a consensus domain called the 'cyclin box.' In mammalian cells, 9 cyclin species have been identified, and they are referred to as cyclins A through I. Cyclin G is a direct transcriptional target of the p53 tumor suppressor gene product and thus functions downstream of p53. GAK is an association partner of cyclin G and CDK5. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2013]