..., previously believed to occur through a decrease in the levels of the diuretic factors, indicates that an anti-diuretic hormone, with properties similar to CAP2b (pELYAFPRVamide;recently renamed Mas-CAPA-1), might also be present in R. prolixus . Here, we present evidence from immunohistochemical analysis...

...Poh Kheng Loi; Nathan J. Tublitz SUMMARY The gene coding for cardioacceleratory peptide 2b (CAP2b; pELYAFPRV) has been isolated and sequenced from the moth Manduca sexta (GenBank accession #AY649544). Because of its significant homology to the CAPA gene in Drosophila melanogaster , this gene...

.... An epithelial phenotype for norpA: phospholipase Cβ(PLCβ) is required for neuropeptide stimulation of principal and stellate cells. Fluid transport assays were performed on intact tubules from wild-type(Oregon R), norpAH52 and norpAP24flies as described in the Materials and methods. Either (A) 10-7moll-1 CAP2b...

... of experiments testing cyclic GMP and several agonists of cyclic GMP synthesis on Malpighian tubules from third-instar Rhodnius prolixus nymphs Fig. 1. Dose–response curves for CAP2b action on tubule secretion rates. Tubules were partially stimulated with 60 nmol l -1 5-HT and secretion rates...