1Y4F | pdb_00001y4f

T-To-T(High) quaternary transitions in human hemoglobin: betaW37A 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	52.08

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 96.8	α = 90
b = 99.2	β = 90
c = 66.2	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	1995-10-20	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	1.99	50	97.1	0.065	9.8	6.2	42934	43934

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)
	1.99	2.14	86.9		0.232	1.8	3.1	7548

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT and localRfree	PDB ENTRY 1Y0W	2	10	38054	4231	97.46	0.18406	0.18055	0.18	0.21554	0.21	10 SETS MATCHED TO PDB ENTRY 1Y0W	24.379

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]
-0.32			1.21		-0.89

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	17.037
r_scangle_it	3.862
r_dihedral_angle_1_deg	3.406
r_scbond_it	2.36
r_angle_refined_deg	1.592
r_mcangle_it	1.45
r_angle_other_deg	1.116
r_mcbond_it	0.736
r_nbd_refined	0.24
r_nbd_other	0.197
r_xyhbond_nbd_refined	0.184
r_symmetry_vdw_other	0.18
r_symmetry_hbond_refined	0.157
r_symmetry_vdw_refined	0.094
r_xyhbond_nbd_other	0.089
r_chiral_restr	0.087
r_bond_refined_d	0.016
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	4368
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