2R1H

met-Trout IV hemoglobin at pH 6.3

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.3	298	20% PEG 4K, 0.1 M BisTris , pH 6.3, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.17	43.33

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.063	α = 90
b = 62.998	β = 92.2
c = 77.016	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	93	CCD	MARMOSAIC 225 mm CCD		2007-03-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-D	0.97893	APS	21-ID-D

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	1.9	76.9					42904

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		THROUGHOUT	1.9	76.92	42596	2132	98.6	0.172	0.17	0.22	RANDOM	20.883

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]
0.4		-0.91	-2.1		1.63

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.851
r_dihedral_angle_4_deg	16.415
r_dihedral_angle_3_deg	15.243
r_dihedral_angle_1_deg	5.095
r_scangle_it	2.691
r_scbond_it	1.866
r_angle_refined_deg	1.408
r_mcangle_it	1.043
r_mcbond_it	0.728
r_nbtor_refined	0.304
r_nbd_refined	0.211
r_symmetry_vdw_refined	0.179
r_xyhbond_nbd_refined	0.148
r_symmetry_hbond_refined	0.139
r_chiral_restr	0.092
r_bond_refined_d	0.016
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4496
Nucleic Acid Atoms
Solvent Atoms	352
Heterogen Atoms	192

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
MOLREP	phasing