[Ser/Thr-phosphatases from bovine retina: detection of cDNA coding for the catalytic subunit of the gamma-isoform PP2B and two homologs of rdgC/PPEF].

The expression of genes for Ser/Thr phosphatases of the PP1/2A/2B class in the bovine retina was analyzed using PCR on cDNA. The mRNAs were found for the following phosphatases: PP1 (alpha- and gamma-isoforms), PP2A (alpha- and beta-isoforms), PPV, and PP2B (beta- and gamma-isoforms). Earlier, PP2B gamma-isoform was considered testis-specific. cDNAs of two phosphatases related to rdgC/PPEF were also detected. Thus, there are mRNAs of at least four phosphatases in retina that may be regulated by Ca2+.