Molecular cloning of a mouse myosin I expressed in brain

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Abstract
We have isolated two cDNAs that encode putative myosin I heavy chains by polymerase chain reaction amplification of brain cDNA with degenerate oligodeoxynucleotide primers representing myosin I‐speeific conserved amino acid sequences. We report the complete deduced amino acid sequence of one of these cDNAs. The sequence is most similar to those of the avian and bovine brush border myosin Is, with five putative calmodulin‐binding repeats at the head‐tail junction. Northern analysis demonstrates that this myosin heavy chain, unlike the brush border myosins, is expressed in many tissues.