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http://purl.uniprot.org/citations/12913162http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/12913162http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/12913162http://www.w3.org/2000/01/rdf-schema#comment"Four proteins with wall extension activity on grass cell walls were purified from maize (Zea mays) pollen by conventional column chromatography and high-performance liquid chromatography. Each is a basic glycoprotein (isoelectric point = 9.1-9.5) of approximately 28 kD and was identified by immunoblot analysis as an isoform of Zea m 1, the major group 1 allergen of maize pollen and member of the beta-expansin family. Four distinctive cDNAs for Zea m 1 were identified by cDNA library screening and by GenBank analysis. One pair (GenBank accession nos. AY104999 and AY104125) was much closer in sequence to well-characterized allergens such as Lol p 1 and Phl p 1 from ryegrass (Lolium perenne) and Phleum pretense, whereas a second pair was much more divergent. The N-terminal sequence and mass spectrometry fingerprint of the most abundant isoform (Zea m 1d) matched that predicted for AY197353, whereas N-terminal sequences of the other isoforms matched or nearly matched AY104999 and AY104125. Highly purified Zea m 1d induced extension of a variety of grass walls but not dicot walls. Wall extension activity of Zea m 1d was biphasic with respect to protein concentration, had a broad pH optimum between 5 and 6, required more than 50 micro g mL(-1) for high activity, and led to cell wall breakage after only approximately 10% extension. These characteristics differ from those of alpha-expansins. Some of the distinctive properties of Zea m 1 may not be typical of beta-expansins as a class but may relate to the specialized function of this beta-expansin in pollen function."xsd:string
http://purl.uniprot.org/citations/12913162http://purl.org/dc/terms/identifier"doi:10.1104/pp.103.020024"xsd:string
http://purl.uniprot.org/citations/12913162http://purl.org/dc/terms/identifier"doi:10.1104/pp.103.020024"xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/author"Jones A.D."xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/author"Jones A.D."xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/author"Li L.-C."xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/author"Li L.-C."xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/author"Bedinger P.A."xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/author"Bedinger P.A."xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/author"Cosgrove D.J."xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/author"Cosgrove D.J."xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/author"Volk C."xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/author"Volk C."xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/date"2003"xsd:gYear
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/date"2003"xsd:gYear
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/name"Plant Physiol."xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/name"Plant Physiol."xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/pages"2073-2085"xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/pages"2073-2085"xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/title"Purification and characterization of four beta-expansins (Zea m 1 isoforms) from maize pollen."xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/title"Purification and characterization of four beta-expansins (Zea m 1 isoforms) from maize pollen."xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/volume"132"xsd:string
http://purl.uniprot.org/citations/12913162http://purl.uniprot.org/core/volume"132"xsd:string