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Expression, crystallization and preliminary X-ray crystallographic analysis of XometC, a cystathionine gamma-lyase-like protein from Xanthomonas oryzae pv. oryzae.


ABSTRACT: Xanthomonas oryzae pv. oryzae (Xoo) causes bacterial blight of rice (Oryza sativa L.), one of the most devastating diseases of rice in most rice-growing countries. XometC, a cystathionine gamma-lyase (CGL) like protein that is an antibacterial drug-target protein against Xoo, was cloned, expressed, purified and crystallized. CGL catalyzes the second step in the reverse-transsulfuration pathway, which is essential for the metabolic interconversion of the sulfur-containing amino acids cysteine and methionine. Crystals of two different shapes, plate-shaped and pyramid-shaped, diffracted to 2.9 and 3.2 A resolution and belonged to the primitive orthogonal space group P2(1)2(1)2(1) and the tetragonal space group P4(1) (or P4(3)), with unit-cell parameters a = 73.0, b = 144.9, c = 152.3 A and a = b = 78.2, c = 300.7 A, respectively. For the P2(1)2(1)2(1) crystals, three or four monomers exist in the asymmetric unit with a corresponding V(M) of 3.02 or 2.26 A(3) Da(-1) and a solvent content of 59.3 or 45.7%. For the P4(1) (or P4(3)) crystals, four or five monomers exist in the asymmetric unit with a corresponding V(M) of 2.59 or 2.09 A(3) Da(-1) and a solvent content of 52.5 or 40.6%.

PROVIDER: S-EPMC2494973 | BioStudies |

REPOSITORIES: biostudies

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