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  • Title: PRGL: A cell wall proline-rich protein containning GASA domain in Gerbera hybrida.
    Author: Peng J, Lai L, Wang X.
    Journal: Sci China C Life Sci; 2008 Jun; 51(6):520-5. PubMed ID: 18488172.
    Abstract:
    PRPs (proline-rich proteins) are a group of cell wall proteins characterized by their proline and hydroproline-rich repetitive peptides. The expression of PRPs in plants is stimulated by wounding and environmental stress. GASA (gibberellic acid stimulated in Arabidopsis) proteins are small peptides sharing a 60 amino acid conserved C-terminal domain containing twelve invariant cysteine residues. Most of GASAs reported are localized to apoplasm or cell wall and their expression was regulated by gibberellins (GAs). It has been reported that, in French bean, these two proteins encoding by two distinct genes formed a two-component chitin-receptor involved in plant-pathogen interactions when plant was infected. We cloned a full-length cDNA of PRGL (proline-rich GASA-like) gene which encodes a protein containing both PRP and GASA-like domains. It is demonstrated that PRGL is a new protein with characteristics of PRP and GASA by analyzing its protein structure and gene expression.
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