Experiment: 3U7T

Room temperature ultra-high resolution time-of-flight neutron and X-ray diffraction studies of H/D exchanged crambin

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	298	Vapor diffusion of protein in 80 % EtOH solution against a 55 % EtOH solution, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
1.86	33.95

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 22.795	α = 90
b = 18.826	β = 90.89
c = 41.042	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	298	IMAGE PLATE	RIGAKU RAPID		2010-11-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU ULTRAX 18	0.71073

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	0.85	30	99.8	0.05	8.2	3.41	31025	30963			6.3

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	0.85	0.88	99.9		0.342	1.9	3.21	3065

Refinement

Statistics
Diffraction ID	Structure Solution 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	PDB ENTRY 1CRN	0.85	9.898	31025	30659	1541	98.85	0.1202	0.1202	0.1194	0.1189	0.136	0.1348	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]
0.0266		0.3426	-0.1106		0.084

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	8.975
f_angle_d	1.38
f_chiral_restr	0.075
f_plane_restr	0.01
f_bond_d	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	341
Nucleic Acid Atoms
Solvent Atoms	51
Heterogen Atoms

Software

Software
Software Name	Purpose
CrystalClear	data collection
PHENIX	model building
PHENIX	refinement
d*TREK	data reduction
d*TREK	data scaling
PHENIX	phasing