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Mucinous cystadenocarcinomas of ovary displayed strong cytoplasmic immunoreactivity. Several colorectal and testicular cancers as well as a few hepatocellular carcinomas and pancreatic cancers showed moderate cytoplasmic positivity. Remaining malignant cells were weakly stained or negative.
GENE INFORMATION
Gene name
ACTR1A (HGNC Symbol)
Synonyms
ARP1, Arp1A
Description
ARP1 actin-related protein 1 homolog A, centractin alpha (yeast) (HGNC Symbol)
Entrez gene summary
This gene encodes a 42.6 kD subunit of dynactin, a macromolecular complex consisting of 10-11 subunits ranging in size from 22 to 150 kD. Dynactin binds to both microtubules and cytoplasmic dynein. It is involved in a diverse array of cellular functions, including ER-to-Golgi transport, the centripetal movement of lysosomes and endosomes, spindle formation, chromosome movement, nuclear positioning, and axonogenesis. This subunit is present in 8-13 copies per dynactin molecule, and is the most abundant molecule in the dynactin complex. It is an actin-related protein, and is approximately 60% identical at the amino acid level to conventional actin. [provided by RefSeq, Jul 2008]