1BLH

STRUCTURE OF A PHOSPHONATE-INHIBITED BETA-LACTAMASE. AN ANALOG OF THE TETRAHEDRAL TRANSITION STATE(SLASH)INTERMEDIATE OF BETA-LACTAM HYDROLYSIS

X-RAY DIFFRACTION

Crystallization

Crystal Properties
Matthews coefficient	Solvent content
3.06	59.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.96	α = 90
b = 94.2	β = 90
c = 138.93	γ = 90

Symmetry
Space Group	I 2 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	Mean Isotropic B
X-RAY DIFFRACTION		2.3	8	2			0.166

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]

RMS Deviations
Key	Refinement Restraint Deviation
p_orthonormal_tor	24.5
p_staggered_tor	21.9
p_planar_tor	3.9
p_singtor_nbd	0.288
p_xhyhbond_nbd	0.226
p_multtor_nbd	0.203
p_chiral_restr	0.187
p_scangle_it	0.15
p_mcangle_it	0.119
p_scbond_it	0.118

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1999
Nucleic Acid Atoms
Solvent Atoms	195
Heterogen Atoms	15

Software

Software
Software Name	Purpose
PROLSQ	refinement

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.