Preliminary X-ray crystallographic analysis of a plant defence protein, the polygalacturonase-inhibiting protein from Phaseolus vulgaris L.
- LEECH A.
- MATTEI, Maria Benedetta
- FEDERICI L.
- DE LORENZO, Giulia
- HEMMINGS A.
Publication date
January 2000
DOI Publisher
Blackwell Munksgaard:PO Box 2148, Periodicals Department, DK-1016 Copenhagen K Denmark:011 45 33 755913, EMAIL: agentservices@oxon.blackwellpublishing.com, INTERNET: http://www.blackwellmunksgaard.com, Fax: 011 45 77 333377Abstract
A leucine-rich repeat plant protein involved in resistance to pathogens, a polygalacturonase-inhibiting protein (PGIP-1) from Phaseolus vulgaris, has been crystallized and preliminary X-ray characterization has been performed. The protein contains ten repeats of a short (24 amino-acid) leucine-rich repeat motif. Single crystals of the protein were grown from vapour-diffusion experiments using PEG 2K monomethylether as precipitant; these crystals diffract to at least 2.3 A resolution. The space group is P2(1), with two molecules of PGIP-1 in the asymmetric unit; the crystals contain approximately 38% solvent
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