2INQ | pdb_00002inq

NEUTRON DIFFRACTION

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3DRC	3DRC (293 K E. COLI DHFR/MTX X-RAY STRUCTURE, 1.7A RESOLUTION)

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5	277	16% (v/v) Polyethylene Glycol 400, 0.2 M CaCl2, 0.1 M Na-HEPES (pH = 7.5); complex [] = 50 mg/ml, Microbatch under parrafin oil, temperature 277K, pH 7.50

Crystal Properties
Matthews coefficient	Solvent content
2.56	52.03

Symmetry
Space Group	P 61

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	neutron	293	AREA DETECTOR	TIME-OF-FLIGHT MULTIWIRE HE3 NEUTRON DETECTOR		2005-02-15	L	LAUE

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1			0.6-7.0

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	2.17	38.6	79.7	0.136	0.07	3.7	2.9		14213		1.5

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)
1	2.17	2.29	63.7		0.325	1.7	1.7

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
NEUTRON DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	3DRC (293 K E. COLI DHFR/MTX X-RAY STRUCTURE, 1.7A RESOLUTION)	2.2	6.5	3	14213	702	79.7		0.233	RANDOM

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
s_zero_chiral_vol	0.059
s_anti_bump_dis_restr	0.057
s_non_zero_chiral_vol	0.052
s_angle_d	0.048
s_bond_d	0.046
s_from_restr_planes	0.016
s_similar_dist
s_rigid_bond_adp_cmpnt
s_similar_adp_cmpnt
s_approx_iso_adps

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2516
Nucleic Acid Atoms
Solvent Atoms	152
Heterogen Atoms	66

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

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