title: Sequencing and cardiac expression of natriuretic peptide receptor 2 (NPR-B) in Sus Scrofa.
abstract: The cardiovascular actions of the C-type natriuretic peptide (CNP) are mainly mediated by the interaction with natriuretic peptide receptor-B (NPR-B). The aim of this study was to identify the sequence of NPR-B in Sus Scrofa, which is not present in GenBank, to verify the expression of NPR-B in the different cardiac chambers of normal pigs and evaluate its homology with murine and human species. Using the guanidinium thyocyanate-phenol-chloroform method, we extracted total RNA from samples obtained from heart of mouse and from the atrium, ventricle, and septum of normal pigs. Pig NPR-B mRNA was sequenced using polymerase chain reaction primers designed from mouse consensus sequences. Sus Scrofa natriuretic peptide receptor 2 mRNA, 1-396 bp, was submitted to GenBank (accession number DQ487044). The presence of NPR-B at mRNA level was detected in all the cardiac chambers; moreover, the bands obtained from pig cardiac tissue shared a 93% sequence homology with a region of the mouse NPR-B and a 95% sequence homology with Homo sapiens. Therefore, NPR-B sequencing provides a new tool to investigate the role of CNP under physiological and pathological conditions in the experimental and clinical setting.
authors.affiliation: CNR Institute of Clinical Physiology, Laboratory of Cardiovascular Biochemistry, Pisa, Italy. delry@ifc.cnr.it
authors.forename: Silvia
authors.initials: S
authors.lastname: Del Ry
authors.forename: Manuela
authors.initials: M
authors.lastname: Cabiati
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Lionetti
authors.forename: Chiara
authors.initials: C
authors.lastname: Colotti
authors.forename: Maristella
authors.initials: M
authors.lastname: Maltinti
authors.forename: Michele
authors.initials: M
authors.lastname: Emdin
authors.forename: Fabio A
authors.initials: FA
authors.lastname: Recchia
authors.forename: Daniela
authors.initials: D
authors.lastname: Giannessi
mesh_terms: D000818:Animals; D001483:Base Sequence; D006162:Guanylate Cyclase / Q000235:genetics* / Q000378:metabolism; D006801:Humans; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D008969:Molecular Sequence Data; D009206:Myocardium / Q000378:metabolism*; D012313:RNA / Q000032:analysis; D012333:RNA, Messenger / Q000378:metabolism; D017461:Receptors, Atrial Natriuretic Factor / Q000235:genetics* / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D017422:Sequence Analysis, DNA; D013552:Swine; D000099242:Atrial Natriuretic Factor Receptor B
chemical_list: D006162:Guanylate Cyclase; D012313:RNA; D012333:RNA, Messenger; D017461:Receptors, Atrial Natriuretic Factor; D000099242:Atrial Natriuretic Factor Receptor B