Actin

A globular subunit of microfilaments, highly conserved Actin is one of the most abundant proteins in eukaryotic cells. Monomeric actin, a slow ATPase composed of a 375 amino acid polypeptide chain, interacts with one molecule of ATP or ADP and contains high affinity and low affinity binding sites for divalent cations. Actin can quickly assemble into long microfilament polymers. In conjunction with myosin, actin is responsible for the contraction and relaxation of muscle. (NCI Thesaurus)

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Actimmune

Other name for interferon gamma-1b.

Actigall

Other name for ursodiol.

ActHIB

Other name for Haemophilus influenzae b vaccine.

ACTH-Producing Pituitary Gland Neoplasm

An adenoma or carcinoma of the pituitary gland that produces corticotropin.

ACTH-Producing Pituitary Gland Carcinoma

A rare, hormonally functioning or non-functioning pituitary gland adenocarcinoma that produces corticotropin. It may be associated with Cushing disease.

ACTH-Producing Pituitary Gland Adenoma

An adenoma of the pituitary gland that produces corticotropin. The vast majority of cases are associated with Cushing disease. Clinical…