title: Two novel N-terminal coding exons of Prkar1b gene of mouse: identified using a novel approach of in silico and molecular biology techniques.
abstract: The Prkar1b gene encodes regulatory type 1 beta subunit of protein kinase A. Here we report that mouse R1β gene produces three alternative splice variants (designated as mR1β1, mR1β2 and mR1β3) that have different N-terminal protein structures. New splice variants were identified using combinatorial approach of bioinformatics pipeline involving online available tools and databases, and molecular biology techniques involving RT-PCR, semi-nested PCR and sequencing. Except mR1β3, which was not detected by RT-PCR in brain and muscle tissues of 3day old mice, all three spliced isoforms were found to be ubiquitously expressed in tissues and postnatal developmental stages examined. The presence of different N-termini in isoforms may be important for unique docking interactions with A kinase anchoring proteins.
authors.affiliation: Department of Biochemistry, A.M. University, Aligarh, U.P. 202002, India.
authors.forename: Abdul Rouf
authors.initials: AR
authors.lastname: Banday
authors.forename: Shafquat
authors.initials: S
authors.lastname: Azim
authors.forename: Sayeed Ur
authors.initials: SU
authors.lastname: Rehman
authors.forename: Mohammad
authors.initials: M
authors.lastname: Tabish
mesh_terms: D017398:Alternative Splicing; D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D054753:Cyclic AMP-Dependent Protein Kinase RIbeta Subunit / Q000737:chemistry* / Q000235:genetics*; D005091:Exons; D051379:Mice; D008967:Molecular Biology / Q000379:methods*; D008969:Molecular Sequence Data; D009928:Organ Specificity; D020033:Protein Isoforms / Q000737:chemistry / Q000235:genetics; D016415:Sequence Alignment
chemical_list: D054753:Cyclic AMP-Dependent Protein Kinase RIbeta Subunit; C517768:Prkar1b protein, mouse; D020033:Protein Isoforms