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A tomato xylem sap protein represents a new family of small cysteine‐rich proteins with structural similarity to lipid transfer proteins
Author(s) -
Rep Martijn,
Dekker Henk L,
Vossen Jack H,
de Boer Albert D,
Houterman Petra M,
de Koster Chris G,
Cornelissen Ben J.C
Publication year - 2003
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/s0014-5793(02)03788-2
Subject(s) - plant lipid transfer proteins , xylem , biochemistry , cysteine , gene , biology , extracellular , gene family , botany , chemistry , microbiology and biotechnology , gene expression , enzyme
The coding sequence of a major xylem sap protein of tomato was identified with the aid of mass spectrometry. The protein, XSP10, represents a novel family of extracellular plant proteins with structural similarity to plant lipid transfer proteins. The XSP10 gene is constitutively expressed in roots and lower stems. The decline of XSP10 protein levels in tomato infected with a fungal vascular pathogen may reflect breakdown or modification by the pathogen.