title: Sequences of cDNAs encoding calmodulin, and partial structures of calmodulin kinase, and a calcium channel of kdr-resistant and -susceptible German cockroaches, Blattella germanica.
abstract: Complementary DNA sequences of genes encoding calmodulin, partial structures of calmodulin-dependent protein kinase II (CaM-kinase II) and an L-type-like calcium channel al subunit (IVS5-IVS6-EF hand region) were identified and compared between susceptible and kdr strains of German cockroach, Blattella germanica. For this purpose, polymerase chain reactions (PCR) were used to obtain their sequences using cDNA from poly(A) + RNA isolated from their heads and thoraces. No mutation differences were found in all three sequences of calcium-regulating proteins between susceptible and strain. Northern blot analysis, however, showed reduced expressions of CaM-kinase II mRNA in two kdr strains. Western blot analysis with an antibody preparation against CaM-kinase II on protein levels confirmed the above strain difference in the titer of this enzyme. In contrast, the levels of calmodulin as well as that of an L-type-like calcium channel gene expression were not different between susceptible and kdr strains.
authors.affiliation: Department of Environmental Toxicology, University of California, Davis 95616, USA.
authors.forename: S
authors.initials: S
authors.lastname: Inagaki
authors.forename: K
authors.initials: K
authors.lastname: Kaku
authors.forename: D Y
authors.initials: DY
authors.lastname: Dunlap
authors.forename: F
authors.initials: F
authors.lastname: Matsumura
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D020048:Blattellidae / Q000235:genetics*; D015152:Blotting, Northern; D015153:Blotting, Western; D015220:Calcium Channels / Q000737:chemistry / Q000235:genetics*; D054732:Calcium-Calmodulin-Dependent Protein Kinase Type 2; D017871:Calcium-Calmodulin-Dependent Protein Kinases / Q000235:genetics*; D002147:Calmodulin / Q000235:genetics*; D018076:DNA, Complementary / Q000737:chemistry; D015971:Gene Expression Regulation, Enzymologic / Q000235:genetics; D007305:Insecticide Resistance / Q000235:genetics*; D008969:Molecular Sequence Data; D012333:RNA, Messenger / Q000302:isolation & purification; D020794:Receptor Protein-Tyrosine Kinases / Q000032:analysis; D017978:Receptors, Growth Factor / Q000032:analysis; D040262:Receptors, Vascular Endothelial Growth Factor
chemical_list: D015220:Calcium Channels; D002147:Calmodulin; D018076:DNA, Complementary; D012333:RNA, Messenger; D017978:Receptors, Growth Factor; D020794:Receptor Protein-Tyrosine Kinases; D040262:Receptors, Vascular Endothelial Growth Factor; D054732:Calcium-Calmodulin-Dependent Protein Kinase Type 2; D017871:Calcium-Calmodulin-Dependent Protein Kinases