3A0G

Crystal structure analysis of guinea pig oxyhemoglobin at 2.5 angstroms resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	291	55% PEG 3350 with HPLC grade water, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.54	51.55

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 90.37	α = 90
b = 84.217	β = 90
c = 83.26	γ = 90

Symmetry
Space Group	C 2 2 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	291	IMAGE PLATE	MAR scanner 345 mm plate		2007-03-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH3R	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	28.89					10470

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.5	28.89

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1HHO	2.5	28.89	10470	840	99.95	0.16338	0.15871	0.21951	RANDOM	21.007

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]
0.01					-0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.876
r_dihedral_angle_4_deg	19.937
r_dihedral_angle_3_deg	19.025
r_dihedral_angle_1_deg	6.813
r_scangle_it	5.532
r_scbond_it	3.634
r_angle_refined_deg	2.388
r_mcangle_it	2.252
r_mcbond_it	1.317
r_nbtor_refined	0.316

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.876
r_dihedral_angle_4_deg	19.937
r_dihedral_angle_3_deg	19.025
r_dihedral_angle_1_deg	6.813
r_scangle_it	5.532
r_scbond_it	3.634
r_angle_refined_deg	2.388
r_mcangle_it	2.252
r_mcbond_it	1.317
r_nbtor_refined	0.316
r_metal_ion_refined	0.253
r_nbd_refined	0.232
r_symmetry_vdw_refined	0.222
r_xyhbond_nbd_refined	0.218
r_symmetry_hbond_refined	0.197
r_chiral_restr	0.161
r_bond_refined_d	0.026
r_gen_planes_refined	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2152
Nucleic Acid Atoms
Solvent Atoms	47
Heterogen Atoms	90

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
AUTOMAR	data reduction
SCALEPACK	data scaling
AMoRE	phasing

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.