title: Isolation and comparison of rat cDNAs encoding Ca2+/calmodulin-dependent protein kinase I isoforms.
abstract: For possible multiple isoforms of Ca2+/calmodulin-dependent protein kinase I (CaM kinase I), only one cDNA (CaM kinase I alpha) hitherto has to been cloned. By screening of embryonic (E18) rat brain cDNA libraries, we have now isolated two additional examples (CaM kinase I beta and gamma). Northern blot analysis revealed CaM kinase I alpha to predominate over I beta and gamma in rat brain. Analysis of the tissue distribution of the isoforms by reverse transcription-polymerase chain reaction (RT-PCR) protocols demonstrated CaM kinase I alpha in a variety of tissues while the expression of CaM kinase I beta and gamma was more limited to the brain. The obtained results support the idea that CaM kinase I exists as a set of isoforms.
authors.affiliation: Department of Pharmacology, Nagoya University School of Medicine, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Yokokura
authors.forename: O
authors.initials: O
authors.lastname: Terada
authors.forename: Y
authors.initials: Y
authors.lastname: Naito
authors.forename: H
authors.initials: H
authors.lastname: Hidaka
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D015152:Blotting, Northern; D001921:Brain / Q000201:enzymology*; D054729:Calcium-Calmodulin-Dependent Protein Kinase Type 1; D017871:Calcium-Calmodulin-Dependent Protein Kinases / Q000096:biosynthesis* / Q000737:chemistry*; D018076:DNA, Complementary / Q000737:chemistry / Q000302:isolation & purification; D004622:Embryo, Mammalian; D015723:Gene Library; D007527:Isoenzymes / Q000096:biosynthesis* / Q000737:chemistry; D008969:Molecular Sequence Data; D017433:Protein Structure, Secondary; D051381:Rats; D017386:Sequence Homology, Amino Acid; D014158:Transcription, Genetic
chemical_list: D018076:DNA, Complementary; D007527:Isoenzymes; D054729:Calcium-Calmodulin-Dependent Protein Kinase Type 1; D017871:Calcium-Calmodulin-Dependent Protein Kinases; C517599:Camk1 protein, rat; C517682:Pnck protein, rat