Tissue-Tek Genie®
anti-Actin, Smooth Muscle

Clone: 1A4
Host clonality: mouse monoclonal
Control tissue: stomach, small Intestine, colon, appendix, myogenic tumors with know alpha actin expression
Staining pattern: cytoplasmic
Regulatory status: IVD, FDA Class I
Product code: 8292-C010: RTU, 10 capsules; 1 pack
8292-M250: RTU, 250 tests, 1 cartridge; 1 unit


Actins are cytoskeletal proteins that are involved in cell motility and are universally expressed by, and highly conserved in, all eukaryotic cells. Most cell types express the beta and gamma actins, which are involved in internal cell motility. The alpha actins are found mainly in muscle tissues where they comprise part of the contractile apparatus.
Tissue-Tek Genie<sup>&reg;</sup><br /> anti-Actin, Smooth Muscle Strong cytoplasmic reactivity for Smooth Muscle Actin is seen in the smooth muscle layers and vascular walls of this appendix specimen.

Perisinusoidal cells of the liver show moderate to strong reactivity for Smooth Muscle Actin. The hepatocytes are negative.

The neural and glial elements show no reactivity for Smooth Muscle Actin. In contrast, the small vessel walls show a strong cytoplasmic reaction.

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