Rpp16 and Rpp17, from a Common Origin, have Different Protein Characteristics but Both Genes are Predominantly Expressed in Rice Phloem Tissues

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Rpp16 and Rpp17, from a common origin, have different protein characteristics but both genes are predominantly expressed in rice phloem tissues.

The genes for two types of rice phloem protein (RPP16 and RPP17) were isolated and characterized. Conservation of five exon sizes as well as splicing positions between the two genes suggest that either RPP16 or RPP17 is a resultant of gene duplication. By protein blot analysis, RPP16 and RPP17 proteins were specifically detected in soluble and insoluble fractions of a crude extract of rice plan...

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Pumpkin phloem lectin genes are specifically expressed in companion cells.

Pumpkin phloem exudate contains two abundant phloem proteins: PP1 is a 96-kD protein that forms polymeric filaments in vivo, and PP2 is a 48-kD dimeric lectin. Polyclonal antibodies raised against pumpkin phloem exudate were used to isolate several cDNAs corresponding to PP1 and PP2. RNA gel blot analysis indicated that PP1 is encoded by an mRNA of approximately 2500 nucleotides, whereas PP2 su...

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ژورنال

عنوان ژورنال: Plant and Cell Physiology

سال: 2002

ISSN: 1471-9053,0032-0781

DOI: 10.1093/pcp/pcf083