Studies on the distribution of cellular myosin with antibodies to isoform-specific synthetic peptides

N Murakami, P Mehta, M Elzinga - FEBS letters, 1991 - Elsevier
N Murakami, P Mehta, M Elzinga
FEBS letters, 1991Elsevier
Antisera were produced against two synthetic peptides having sequences specific for
cellular myosin heavy chains from human macrophages (peptide IIA) and bovine brain
(peptide IIB). Immunoblots of tissue extracts were made with these antibodies, and they
showed that mammalian cells have at least three distinct cellular myosin heavy chain
isoforms. Two of the isoforms (MIIB 1 and MIIB 2) were recognized by antibodies against the
peptide IIB, and the other (MIIA) by the anti-peptide IIA antibodies. Polyclonal anti-platelet …
Abstract
Antisera were produced against two synthetic peptides having sequences specific for cellular myosin heavy chains from human macrophages (peptide IIA) and bovine brain (peptide IIB). Immunoblots of tissue extracts were made with these antibodies, and they showed that mammalian cells have at least three distinct cellular myosin heavy chain isoforms. Two of the isoforms (MIIB1 and MIIB2) were recognized by antibodies against the peptide IIB, and the other (MIIA) by the anti-peptide IIA antibodies. Polyclonal anti-platelet myosin antibodies recognized the MIIA isoform, but did not recognize MIIB1 or MIIB2. The isoforms were expressed in a tissue-specific pattern; the MIIB1 isoform was found only in brain.
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