1Y4G

T-To-T(High) quaternary transitions in human hemoglobin: betaW37G 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
2.56	51.98

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 96.4	α = 90
b = 99.2	β = 90
c = 66.3	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	1995-07-29	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	1.91	50	91.7	0.086	10.2	6	44737	44737

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)
	1.91	2.07	75.7		0.295	1.4	3.2	7177

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 LOCALRFREE	PDB ENTRY 1Y0W	1.91	10	42278	4712	93.22	0.20276	0.19914	0.23524	10 SETS MATCHED TO PDB ENTRY 1Y0W	25.771

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]
-0.17			1.83		-1.66

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	17.18
r_scangle_it	3.771
r_dihedral_angle_1_deg	3.478
r_scbond_it	2.384
r_angle_refined_deg	1.687
r_mcangle_it	1.477
r_angle_other_deg	1.154
r_mcbond_it	0.775
r_nbd_refined	0.239
r_symmetry_vdw_other	0.236
r_symmetry_hbond_refined	0.212
r_nbd_other	0.199
r_xyhbond_nbd_refined	0.192
r_symmetry_vdw_refined	0.139
r_xyhbond_nbd_other	0.112
r_chiral_restr	0.094
r_bond_refined_d	0.017
r_gen_planes_refined	0.007
r_gen_planes_other	0.006
r_bond_other_d

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4366
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