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Two Isoforms of Protein Phosphatase 1 May Be Produced From the Same Gene

Two Isoforms of Protein Phosphatase 1 May Be Produced From the Same Gene

P T Cohen

FEBS Lett. 1988 May 9;232(1):17-23.

PMID: 2835264

Abstract:

A cDNA clone encoding a second type-1 protein phosphatase catalytic subunit (1 alpha) was isolated from a rabbit skeletal muscle cDNA library constructed in lambda gt10. The deduced protein sequence (330 residues, 37.5 kDa) was 19 residues longer at its N-terminus than protein phosphatase 1 beta(311 residues, 35.4 kDa). The amino acid sequences of protein phosphatases 1 alpha and 1 beta were identical after residue 33 of protein phosphatase 1 alpha. The results suggest that the different N-terminal sequences of protein phosphatases 1 alpha and 1 beta are likely to be generated by differential transcription or processing of the mRNA transcribed from a single gene. Southern blotting of rabbit DNA was consistent with this interpretation.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
IAR42411919	Protein Phosphatase-1 Catalytic Subunit, α-Isoform from rabbit			Price

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