title: A tomato xylem sap protein represents a new family of small cysteine-rich proteins with structural similarity to lipid transfer proteins.
abstract: 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.
authors.affiliation: Plant Pathology, Swammerdam Institute for Life Sciences, University of Amsterdam, P.O. Box 94062, 1090 GB Amsterdam, The Netherlands. rep@science.uva.nl
authors.forename: Martijn
authors.initials: M
authors.lastname: Rep
authors.forename: Henk L
authors.initials: HL
authors.lastname: Dekker
authors.forename: Jack H
authors.initials: JH
authors.lastname: Vossen
authors.forename: Albert D
authors.initials: AD
authors.lastname: de Boer
authors.forename: Petra M
authors.initials: PM
authors.lastname: Houterman
authors.forename: Chris G
authors.initials: CG
authors.lastname: de Koster
authors.forename: Ben J C
authors.initials: BJ
authors.lastname: Cornelissen
mesh_terms: D000595:Amino Acid Sequence; D052179:Antigens, Plant; D002352:Carrier Proteins / Q000737:chemistry; D003545:Cysteine / Q000737:chemistry; D005670:Fusarium / Q000472:pathogenicity; D018551:Solanum lycopersicum / Q000737:chemistry* / Q000378:metabolism / Q000382:microbiology; D013058:Mass Spectrometry; D008969:Molecular Sequence Data; D009181:Mycoses / Q000378:metabolism; D010935:Plant Diseases; D010940:Plant Proteins / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism*; D018547:Plant Stems / Q000737:chemistry; D017434:Protein Structure, Tertiary; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D040681:Structural Homology, Protein
chemical_list: D052179:Antigens, Plant; D002352:Carrier Proteins; D010940:Plant Proteins; C511920:lipid transfer proteins, plant; D003545:Cysteine