Experiment: 1JYW

E. COLI (lacZ) BETA-GALACTOSIDASE (E537Q) IN COMPLEX WITH PNPG

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1DP0

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	288	Bis-Tris, PEG 8000, MgCl2, NaCl, DTT, pH 6.5, VAPOR DIFFUSION, HANGING DROP at 288K, pH 6.50

Crystal Properties
Matthews coefficient	Solvent content
2.7	55

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 149.68	α = 90
b = 168.6	β = 90
c = 201.09	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC QUANTUM 4		1999-07-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.8984	SSRL	BL9-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.55	28.8	98.3	0.042	10	2.7	715525	715525			14.1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.55		95.8		0.28	4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1DP0	1.55	28.8	715525	715525	10463	98.3	0.18	0.229	0.2066	RANDOM	21

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]
-0.9			1.8		-0.9

RMS Deviations
Key	Refinement Restraint Deviation
t_dihedral_angle_d	17.3
t_pseud_angle	14.1
t_it	7.4
t_angle_deg	2.91
t_nbd	0.09
t_gen_planes	0.021
t_bond_d	0.02
t_trig_c_planes	0.018
t_incorr_chiral_ct

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	32511
Nucleic Acid Atoms
Solvent Atoms	4462
Heterogen Atoms	551

Software

Software
Software Name	Purpose
TNT	refinement
DENZO	data reduction
SCALEPACK	data scaling
TNT	phasing