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. 1994 Dec 12;356(1):51-5.
doi: 10.1016/0014-5793(94)01231-8.

Molecular cloning of cDNA encoding the 110 kDa and 21 kDa regulatory subunits of smooth muscle protein phosphatase 1M

Y H Chen  1 , M X Chen, D R Alessi, D G Campbell, C Shanahan, P Cohen, P T Cohen
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Free article

Molecular cloning of cDNA encoding the 110 kDa and 21 kDa regulatory subunits of smooth muscle protein phosphatase 1M

Y H Chen et al. FEBS Lett. .
Free article

Abstract

The structures of the M110 and M21 regulatory subunits of protein phosphatase-1M, the major enzyme which dephosphorylates myosin in smooth muscle, have been deduced from cloned cDNAs. The N-terminus of the M110 subunit from rat aorta contains seven ankyrin repeats, while the C-terminus of the M21 subunit from chicken gizzard contains a leucine zipper motif. The M110 subunit is expressed in two different forms which differ in their C-terminal sequences. One of these is highly homologous to the whole of the M21 subunit.

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