title: Crystallization and preliminary X-ray diffraction analysis of Trap1 complexed with Hsp90 inhibitors.
abstract: Hsp90 is a molecular chaperone responsible for the assembly and regulation of many cellular client proteins. In particular, Trap1, a mitochondrial Hsp90 homologue, plays a pivotal role in maintaining mitochondrial integrity, protecting against apoptosis in cancer cells. The N (N-terminal)-M (middle) domain of human Trap1 was crystallized in complex with Hsp90 inhibitors (PU-H71 and BIIB-021) by the hanging-drop vapour-diffusion method at pH 6.5 and 293 K using 15% PEG 8K as a precipitant. Diffraction data were collected from crystals of the Trap1-PU-H71 (2.7 Å) and Trap1-BIIB-021 (3.1 Å) complexes to high resolution at a synchrotron-radiation source. Preliminary X-ray diffraction analysis revealed that both crystals belonged to space group P41212 or P43212, with unit-cell parameters a = b = 69.2, c = 252.5 Å, and contained one molecule per asymmetric unit according to Matthews coefficient calculations.
authors.affiliation: Department of Biological Sciences, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 689-798, Republic of Korea.
authors.forename: Hanbin
authors.initials: H
authors.lastname: Jeong
authors.affiliation: Department of Biological Sciences, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 689-798, Republic of Korea.
authors.forename: Byoung Heon
authors.initials: BH
authors.lastname: Kang
authors.affiliation: Department of Biological Sciences, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 689-798, Republic of Korea.
authors.forename: Changwook
authors.initials: C
authors.lastname: Lee
mesh_terms: D001483:Base Sequence; D003460:Crystallization; D018360:Crystallography, X-Ray; D017931:DNA Primers; D018841:HSP90 Heat-Shock Proteins / Q000037:antagonists & inhibitors* / Q000737:chemistry
chemical_list: D017931:DNA Primers; D018841:HSP90 Heat-Shock Proteins; C092306:TRAP1 protein, human
keywords: BIIB-021; PU-H71; Trap1