Experiment: 1KB5

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1VFA	PDB ENTRIES 1VFA, 1MLB, 1FLR, 1BEC
experimental model	PDB	1MLB	PDB ENTRIES 1VFA, 1MLB, 1FLR, 1BEC
experimental model	PDB	1FLR	PDB ENTRIES 1VFA, 1MLB, 1FLR, 1BEC
experimental model	PDB	1BEC	PDB ENTRIES 1VFA, 1MLB, 1FLR, 1BEC

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.2		15% PEG6000, 100MM HEPES PH 6.9-7.5, 200MM NACL, 0.1% NAN3, pH 7.2

Crystal Properties
Matthews coefficient	Solvent content
2.5	54.18

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 187.31	α = 90
b = 80.95	β = 90
c = 52.08	γ = 90

Symmetry
Space Group	P 21 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	120	CCD		MIRRORS	1996-10-28	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM02		ESRF	BM02

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.5	25	86.7	0.086		3.1		24517			76

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.5	2.6	64.9		0.395		1.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	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	PDB ENTRIES 1VFA, 1MLB, 1FLR, 1BEC	2.5	10	20232	1048		0.221	0.219	0.22		0.24	RANDOM	48.9

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_scangle_it	1.26
p_mcangle_it	1.12
p_scbond_it	0.75
p_mcbond_it	0.59
p_chiral_restr	0.213
p_planar_d	0.112
p_angle_d	0.034
p_plane_restr	0.014
p_bond_d	0.013
p_angle_deg

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5172
Nucleic Acid Atoms
Solvent Atoms	266
Heterogen Atoms

Software

Software
Software Name	Purpose
XDS	data scaling
XSCALE	data scaling
AMoRE	phasing
REFMAC	refinement
XDS	data reduction

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.