title: A calcium binding protein from Drosophila melanogaster which activates cAMP phosphodiesterase: comparison of this protein with porcine brain calmodulin.
abstract: A calcium binding protein from Drosophila melanogaster has been isolated and characterized. This protein shows several analogies with pig brain calmodulin in its molecular weight, isoelectric point, peptide maps, calcium binding properties, and ability to activate cyclic AMP phosphodiesterase. However, some differences were observed; the most remarkable one is the presence of tryptophan, an amino acid which is absent from all the calmodulins analyzed previously.
mesh_terms: D015105:3',5'-Cyclic-AMP Phosphodiesterases / Q000378:metabolism*; D000596:Amino Acids / Q000032:analysis; D000818:Animals; D001923:Brain Chemistry; D002135:Calcium-Binding Proteins / Q000302:isolation & purification* / Q000502:physiology; D002147:Calmodulin / Q000494:pharmacology*; D055598:Chemical Phenomena; D002621:Chemistry; D002848:Chromatography, DEAE-Cellulose; D002850:Chromatography, Gel; D004023:Dictyostelium; D004331:Drosophila melanogaster / Q000201:enzymology*; D004789:Enzyme Activation; D007526:Isoelectric Point; D008970:Molecular Weight; D010944:Plants; D013045:Species Specificity; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D013552:Swine
chemical_list: D000596:Amino Acids; D002135:Calcium-Binding Proteins; D002147:Calmodulin; D015105:3',5'-Cyclic-AMP Phosphodiesterases