title: Crystallization and preliminary X-ray diffraction studies of Murraya koenigii trypsin inhibitor.
abstract: A Kunitz-type trypsin inhibitor purified from the seeds of Murraya koenigii has been crystallized by the sitting-drop vapour-diffusion method using PEG 8000 as the precipitating agent. The crystals belong to the tetragonal space group P4(3)2(1)2, with unit-cell parameters a = b = 75.8, c = 150.9 A. The crystals contain two molecules in the asymmetric unit with a V(M) value of 2.5 A(3) Da(-1). Diffraction was observed to 2.65 A resolution and a complete data set was collected to 2.9 A resolution.
authors.affiliation: Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee 247 667, India.
authors.forename: Chandan
authors.initials: C
authors.lastname: Shee
authors.forename: Tej P
authors.initials: TP
authors.lastname: Singh
authors.forename: Pravindra
authors.initials: P
authors.lastname: Kumar
authors.forename: Ashwani K
authors.initials: AK
authors.lastname: Sharma
mesh_terms: D018360:Crystallography, X-Ray; D032101:Murraya / Q000737:chemistry*; D010455:Peptides / Q000737:chemistry*; D010940:Plant Proteins / Q000737:chemistry*; D011487:Protein Conformation
chemical_list: C053865:Kunitz-type protease inhibitor, plant; D010455:Peptides; D010940:Plant Proteins