3EU1

Crystal Structure determination of goat hemoglobin (Capra hircus) at 3 angstrom resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	293	2micro litres of Hb with 2micro litre of well solution containing 25mM of Phosphate buffer at pH 7.5 with 0.5M NaCl, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.27	45.92

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.678	α = 90
b = 66.896	β = 90
c = 157.593	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	293	IMAGE PLATE	MAR scanner 345 mm plate		2008-07-16	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)	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	3	30	89.7	0.1854	2.9	4.12	10705	9607	3	2

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)
	3	3.11	93		0.5361	0.7	3.55

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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 3d1a	3	22.08	10705	9607	1036	89.6	0.21906	0.21269	0.27796	RANDOM	34.953

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]
0.03			0.02		-0.04

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.247
r_dihedral_angle_3_deg	19.729
r_dihedral_angle_4_deg	16.899
r_dihedral_angle_1_deg	8.682
r_scangle_it	3.003
r_angle_refined_deg	2.095
r_scbond_it	2.033
r_mcangle_it	1.268
r_mcbond_it	0.888
r_symmetry_vdw_refined	0.344

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.247
r_dihedral_angle_3_deg	19.729
r_dihedral_angle_4_deg	16.899
r_dihedral_angle_1_deg	8.682
r_scangle_it	3.003
r_angle_refined_deg	2.095
r_scbond_it	2.033
r_mcangle_it	1.268
r_mcbond_it	0.888
r_symmetry_vdw_refined	0.344
r_nbtor_refined	0.326
r_nbd_refined	0.309
r_xyhbond_nbd_refined	0.224
r_symmetry_hbond_refined	0.178
r_chiral_restr	0.116
r_bond_refined_d	0.022
r_gen_planes_refined	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4389
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	172

Software

Software
Software Name	Purpose
MAR345	data collection
PHASER	phasing
REFMAC	refinement
AUTOMAR	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.