1Y46

T-To-T(High) quaternary transitions in human hemoglobin: betaW37Y deoxy low-salt (10 test sets)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1Y0W	PDB ENTRY 1Y0W

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	batch	7	298	10% PEG 6000, 10 mM potassium phosphate, 100 mM potassium chloride, 3 mM sodium dithionite, 10 mg/ml Hb, pH 7.0, batch, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.57	52.16

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 97.2	α = 90
b = 99.4	β = 90
c = 66.1	γ = 90

Symmetry
Space Group	P 21 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	298	AREA DETECTOR	SDMS	GRAPHITE	1996-07-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	2.22	50	97.8	0.111	5.6	6.4		31603

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.22	2.39	89.6		0.275	1.4	3.3	5691

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 and local R-free	PDB ENTRY 1Y0W	2.22	10	28295	3139	95.82	0.19209	0.18646	0.24261	10 unique sets matched to pdb entry 1Y0W	17.656

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]
0.23			0.22		-0.45

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	17.97
r_dihedral_angle_1_deg	3.606
r_scangle_it	3.225
r_scbond_it	1.955
r_angle_refined_deg	1.782
r_mcangle_it	1.233
r_angle_other_deg	1.122
r_mcbond_it	0.648
r_nbd_refined	0.257
r_xyhbond_nbd_refined	0.223
r_nbd_other	0.209
r_xyhbond_nbd_other	0.199
r_symmetry_hbond_refined	0.181
r_symmetry_vdw_other	0.176
r_symmetry_vdw_refined	0.112
r_chiral_restr	0.087
r_bond_refined_d	0.019
r_gen_planes_refined	0.006
r_gen_planes_other	0.006
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4382
Nucleic Acid Atoms
Solvent Atoms	175
Heterogen Atoms	172

Software

Software
Software Name	Purpose
SDMS	data collection
SDMS	data reduction
X-PLOR	model building
REFMAC	refinement
SDMS	data scaling
X-PLOR	phasing