2PVB

PIKE PARVALBUMIN (PI 4.10) AT LOW TEMPERATURE (100K) AND ATOMIC RESOLUTION (0.91 A).

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	vapor diffusion - sitting drop in microgravity	8		SITTING DROP, MICROGRAVITY CONDITIONS PROTEIN SOLUTION : 27 MG/ML, 0.02% (W/V) NAN3 RESERVOIR : 2.4M AMMONIUM SULFATE 0.03%(W/V) EDTA, 0.02% (W/V) NAN3 TRIS BUFFER (PH 8.0) DROP : 10 MICROL. PROTEIN SOLUTION + 10 MICROL. RESERVOIR, vapor diffusion - sitting drop in microgravity

Crystal Properties
Matthews coefficient	Solvent content
1.93	36.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.03	α = 90
b = 49.81	β = 90
c = 34.57	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	IMAGE PLATE	MARRESEARCH	SEGMENTED MIRROR	1997-06-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X11		EMBL/DESY, HAMBURG	X11

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	0.91	25	99.8	3.6	14.2	4.9		63698

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)
	0.91	0.92	97.3		12.4	3.3	2.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	OTHER	THROUGHOUT	PDB ENTRY 1PVB	0.91	25	63698	3187	99.8	0.1098	0.1095		0.1317	RANDOM, 5%

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]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
16	784	1025

RMS Deviations
Key	Refinement Restraint Deviation
s_from_restr_planes	0.335
s_non_zero_chiral_vol	0.102
s_approx_iso_adps	0.1
s_zero_chiral_vol	0.093
s_anti_bump_dis_restr	0.061
s_similar_adp_cmpnt	0.037
s_angle_d	0.032
s_bond_d	0.015
s_rigid_bond_adp_cmpnt	0.007
s_similar_dist

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	873
Nucleic Acid Atoms
Solvent Atoms	217
Heterogen Atoms	6

Software

Software
Software Name	Purpose
SHELXL-97	refinement
DENZO	data reduction
SCALEPACK	data scaling

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 R01GM133198.