3EOK

Crystal structure determination of duck (Anas platyrhynchos) hemoglobin at 2.1 Angstrom resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		293	PEG, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.39	48.46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 59.891	α = 90
b = 109.415	β = 90
c = 92.065	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	293	IMAGE PLATE	MAR scanner 345 mm plate			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU300	1.5417

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	2.1	20		0.0684	5.2	4.14		16787

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)
	2.1	2.18			0.2759	1.3	4.03

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	2.1	15	15044	1716	93.29	0.201	0.1952	0.25243	RANDOM	31.061

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		-0.05

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.493
r_dihedral_angle_4_deg	15.482
r_dihedral_angle_3_deg	15.306
r_dihedral_angle_1_deg	5.157
r_scangle_it	3.032
r_scbond_it	1.909
r_mcangle_it	1.279
r_angle_refined_deg	1.17
r_mcbond_it	0.749
r_nbtor_refined	0.294

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.493
r_dihedral_angle_4_deg	15.482
r_dihedral_angle_3_deg	15.306
r_dihedral_angle_1_deg	5.157
r_scangle_it	3.032
r_scbond_it	1.909
r_mcangle_it	1.279
r_angle_refined_deg	1.17
r_mcbond_it	0.749
r_nbtor_refined	0.294
r_nbd_refined	0.209
r_symmetry_vdw_refined	0.197
r_xyhbond_nbd_refined	0.151
r_symmetry_hbond_refined	0.122
r_chiral_restr	0.082
r_bond_refined_d	0.011
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2230
Nucleic Acid Atoms
Solvent Atoms	66
Heterogen Atoms	86

Software

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

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.