RDF/XMLNTriplesTurtleShow queryShare
SubjectPredicateObject
http://purl.uniprot.org/citations/1710976http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/1710976http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/1710976http://www.w3.org/2000/01/rdf-schema#comment"Human salivary alpha-amylase displays multiple bands upon native polyacrylamide gel electrophoresis. In fresh saliva, due to posttranslational modifications, a pattern of 5-6 isozymes is observed. The isozymes are designated 1-6, in the order of increasing anodal mobility. As a result of the development of a rapid and sensitive electrophoresis system, with markedly higher resolution than previously reported, we concluded that a previously proposed model (Karn et al., Biochem. Genet. 1973, 10, 341-350) is inadequate to explain the origin of the various bands. We propose an alternative model that fits in with our new and previously made observations. According to this model, band 2 is the primary gene product and band 1 is its glycosylated counterpart--with only one neutral oligosaccharide present on each molecule. Band 3 originates from band 1 by the transialidase-catalyzed incorporation of sialic acid into the biantennary chain. Bands 4 and 6 originate from bands 2 and 4, respectively, by deamidation; band 5 is the deamidation product of amylase with an acidic oligosaccharide (band 3). Only a minor part of band 3 consists of the deamidation product of band 1. Peptide Asn-Gly-Ser (residues 427-429) is the most probable candidate for glycosylation; literature data suggests that deamidation occurs in the stretch Glu-Asn-Gly-Lys-Asp (residues 364-368) and Asn-Gly-Asn-Cys (residues 474-477). Both glycosylation and deamidation might play a role in the clearance of amylase from the systemic circulation. The electrophoresis system described is a powerful tool to determine amylase isozyme distributions in health and disease, especially for the screening of alterations seen in ectopically produced amylase."xsd:string
http://purl.uniprot.org/citations/1710976http://purl.org/dc/terms/identifier"doi:10.1002/elps.1150120114"xsd:string
http://purl.uniprot.org/citations/1710976http://purl.org/dc/terms/identifier"doi:10.1002/elps.1150120114"xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/author"Hettema E.H."xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/author"Hettema E.H."xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/author"Amerongen A.V."xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/author"Amerongen A.V."xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/author"Arwert F."xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/author"Arwert F."xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/author"Bank R.A."xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/author"Bank R.A."xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/author"Pronk J.C."xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/author"Pronk J.C."xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/date"1991"xsd:gYear
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/date"1991"xsd:gYear
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/name"Electrophoresis"xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/name"Electrophoresis"xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/pages"74-79"xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/pages"74-79"xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/title"Electrophoretic characterization of posttranslational modifications of human parotid salivary alpha-amylase."xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/title"Electrophoretic characterization of posttranslational modifications of human parotid salivary alpha-amylase."xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/volume"12"xsd:string
http://purl.uniprot.org/citations/1710976http://purl.uniprot.org/core/volume"12"xsd:string