Wild type beta-lactamase DERIVED FROM CHROMOHALOBACTER SP.560

Structure of a highly acidic beta-lactamase from the moderate halophile Chromohalobacter sp. 560 and the discovery of a Cs(+)-selective binding site

0.2M NACL, 0.2M MAGNESIUM FORMATE, 30% PEG3350, 50MM HEPES BUFFER, PH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K

HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS