RDF/XMLNTriplesTurtleShow queryShare
SubjectPredicateObject
http://purl.uniprot.org/citations/9109444http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/9109444http://www.w3.org/2000/01/rdf-schema#comment"To characterize the role of the gap junction protein connexin43 (Cx43) in ventricular conduction, we studied hearts of mice with targeted deletion of the Cx43 gene. Mice homozygous for the Cx43 null mutation (Cx43 -/-) die shortly after birth. Attempts to record electrical activity in neonatal Cx43 -/-hearts (n = 5) were unsuccessful. Ventricular epicardial conduction of paced beats, however, was 30% slower in heterozygous (Cx43 -/+) neonatal hearts (0.14+/-0.04 m/s, n = 27) than in wild-type (Cx43 +/+) hearts (0.20+/-0.07 m/s, n = 32; P < 0.001). This phenotype was even more severe in adult mice; ventricular epicardial conduction was 44% slower in 6-9 mo-old Cx43 -/+ hearts (0.18+/-0.03 m/s, n = 5) than in wild-type hearts (0.32+/-0.07 m/s, n = 7, P < 0.001). Electrocardiograms revealed significant prolongation of the QRS complex in adult Cx43 -/+ mice (13.4+/-1.8 ms, n = 13) compared with Cx43 +/+ mice (11.5+/-1.4 ms, n = 12, P < 0.01). Whole-cell recordings of action potential parameters in cultured disaggregated neonatal ventricular myocytes from Cx43 -/+ and +/+ hearts showed no differences. Thus, reduction in the abundance of a major cardiac gap junction protein through targeted deletion of a Cx43 allele directly leads to slowed ventricular conduction."xsd:string
http://purl.uniprot.org/citations/9109444http://purl.org/dc/terms/identifier"doi:10.1172/jci119367"xsd:string
http://purl.uniprot.org/citations/9109444http://purl.uniprot.org/core/author"Johnson C.M."xsd:string
http://purl.uniprot.org/citations/9109444http://purl.uniprot.org/core/author"Saffitz J.E."xsd:string
http://purl.uniprot.org/citations/9109444http://purl.uniprot.org/core/author"Guerrero P.A."xsd:string
http://purl.uniprot.org/citations/9109444http://purl.uniprot.org/core/author"Beyer E.C."xsd:string
http://purl.uniprot.org/citations/9109444http://purl.uniprot.org/core/author"Yamada K.A."xsd:string
http://purl.uniprot.org/citations/9109444http://purl.uniprot.org/core/author"Davis L.M."xsd:string
http://purl.uniprot.org/citations/9109444http://purl.uniprot.org/core/author"Schuessler R.B."xsd:string
http://purl.uniprot.org/citations/9109444http://purl.uniprot.org/core/date"1997"xsd:gYear
http://purl.uniprot.org/citations/9109444http://purl.uniprot.org/core/name"J Clin Invest"xsd:string
http://purl.uniprot.org/citations/9109444http://purl.uniprot.org/core/pages"1991-1998"xsd:string
http://purl.uniprot.org/citations/9109444http://purl.uniprot.org/core/title"Slow ventricular conduction in mice heterozygous for a connexin43 null mutation."xsd:string
http://purl.uniprot.org/citations/9109444http://purl.uniprot.org/core/volume"99"xsd:string
http://purl.uniprot.org/citations/9109444http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/9109444
http://purl.uniprot.org/citations/9109444http://xmlns.com/foaf/0.1/primaryTopicOfhttps://pubmed.ncbi.nlm.nih.gov/9109444
http://purl.uniprot.org/uniprot/P23242#attribution-DF8A8E5DF44CC218FDC09BD6D7CA397Ehttp://purl.uniprot.org/core/sourcehttp://purl.uniprot.org/citations/9109444
http://purl.uniprot.org/uniprot/#_A0A1W2P8A3-mappedCitation-9109444http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/9109444
http://purl.uniprot.org/uniprot/#_A0A1W2P793-mappedCitation-9109444http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/9109444
http://purl.uniprot.org/uniprot/#_A0A654ICD2-mappedCitation-9109444http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/9109444
http://purl.uniprot.org/uniprot/#_P23242-mappedCitation-9109444http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/9109444
http://purl.uniprot.org/uniprot/#_Q7TMQ1-mappedCitation-9109444http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/9109444
http://purl.uniprot.org/uniprot/#_Q3UTR0-mappedCitation-9109444http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/9109444
http://purl.uniprot.org/uniprot/#_Q6T9D4-mappedCitation-9109444http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/9109444