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1.  Crystallization and preliminary X-ray diffraction analysis of a new chitin-binding protein from Parkia platycephala seeds 
Crystals of P. platycephala chintinase/lectin (PPL-2) belong to the orthorhombic space group P212121, with unit-cell parameters a = 55.19, b = 59.95, c = 76.60 Å. The preliminary cystal structure of PPL-2 was solved at a resolution of 1.73 Å by molecular replacement, presenting a correlation coefficient of 0.558 and an R factor of 0.439.
A chitin-binding protein named PPL-2 was purified from Parkia platycephala seeds and crystallized. Crystals belong to the orthorhombic space group P212121, with unit-cell parameters a = 55.19, b = 59.95, c = 76.60 Å, and grew over several days at 293 K using the hanging-drop method. Using synchrotron radiation, a complete structural data set was collected to 1.73 Å resolution. The preliminary crystal structure of PPL-2, determined by molecular replacement, presents a correlation coefficient of 0.558 and an R factor of 0.439. Crystallographic refinement is in progress.
doi:10.1107/S1744309105024462
PMCID: PMC1978108  PMID: 16511174
chitin-binding proteins; chitinases; Parkia platycephala; lectins

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