Diana,

SMA is directed against smooth muscle fibers found primarily in blood 
vessels and the GI tract. MSA is directed against striated muscle (skeletal 
and heart).

Tim Morken, B.A., EMT(MSA), HTL(ASCP)
Infectious Disease Pathology
Centers for Disease Control
MS-G32
1600 Clifton Rd.
Atlanta, GA 30333
USA

email: tim9@cdc.gov
       timcdc@hotmail.com

Phone: (404) 639-3964
FAX:  (404)639-3043



----Original Message Follows----
From: "Goodwin, Diana" <DGoodwin@CHSNJ.org>
To: "'Histonet'" <HistoNet@pathology.swmed.edu>
Subject: SMA vs. MSA
Date: Tue, 24 Aug 1999 12:11:15 -0400

What is the difference between Smooth Muscle Actin (SMA) and Muscle
Specific Actin (MSA)?


Diana Goodwin,  HT
Trenton,  NJ








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