Experiment: 1K52

Monomeric Protein L B1 Domain with a K54G mutation

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1HZ5	WT B1 domain, pdb entry 1HZ5

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	277	120mM ZnOAc 50mM Cacadylate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
4.37	71.85

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 66.634	α = 90
b = 66.634	β = 90
c = 108.83	γ = 120

Symmetry
Space Group	P 32 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	RIGAKU RAXIS IV	mirrors	2000-05-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	1.8	30	99.7	0.065	0.058	20.4	4.9	26553	26473		-3	18.8

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.84	96.6		0.42	0.393	3	4.8	1654

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-Factor (All)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	WT B1 domain, pdb entry 1HZ5	1.8	24.54	26509	26441	1340	99.5	0.199	0.199	0.199	0.1983	0.205	0.2042	RANDOM	23.3

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]
1.1	0.97		1.1		-2.21

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	26.3
c_scangle_it	3.77
c_scbond_it	2.66
c_mcangle_it	1.86
c_mcbond_it	1.33
c_angle_deg	1.2
c_improper_angle_d	0.65
c_bond_d	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1122
Nucleic Acid Atoms
Solvent Atoms	203
Heterogen Atoms	8

Software

Software
Software Name	Purpose
EPMR	phasing
CNS	refinement
SCALEPACK	data scaling