1YDZ

T-To-T(High) quaternary transitions in human hemoglobin: alphaY140F oxy (2MM IHP, 20% PEG) (1 test set)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				10% PEG 6000, 10 MM POTASSIUM PHOSPHATE, 100 MM POTASSIUM CHLORIDE, 3 MM SODIUM DITHIONITE, 10 MG/ML DEOXYHB, PH 7.0, BATCH, TEMPERATURE 298K, 1 ATM N2. EXPOSING DEOXY CRYSTAL TO LIGAND: A DEOXY CRYSTAL WAS SOAKED (UNDER 1 ATM NITROGEN) IN SUBSTITUTE MOTHER LIQUOR CONTAINING 20% PEG 6000, 10 MM POTASSIUM PHOSPHATE (PH 7.0), 100 MM POTASSIUM CHLORIDE, AND 2.2 MM IHP. THE IHP-STABILIZED CRYSTAL WAS THEN EXPOSED TO 1 ATM OF OXYGEN AT 177K AND DATA WAS COLLECTED AT 169K.

Crystal Properties
Matthews coefficient	Solvent content
2.54	51.66

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 95.6	α = 90
b = 98.6	β = 90
c = 67.1	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	169	IMAGE PLATE	RIGAKU RAXIS IV	OSMIC MIRRORS	2001-05-21	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	3.3	34.3	92.3	0.114	5.8	2.8		9186

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)
	3.3	3.56	85.9		0.241	2.8	2.7	1735

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1Y0C	3.3	10	2	7990	7968	712	92.3	0.127	0.307	MATCHED TO PDB ENTRY 1Y0C	20.66

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]

RMS Deviations
Key	Refinement Restraint Deviation
p_transverse_tor	31.6
p_staggered_tor	25.2
p_scangle_it	8.366
p_scbond_it	5.589
p_mcangle_it	3.559
p_planar_tor	2.6
p_mcbond_it	2.156
p_xyhbond_nbd	0.218
p_multtor_nbd	0.208
p_singtor_nbd	0.179
p_hb_or_metal_coord	0.17
p_chiral_restr	0.148
p_planar_d	0.043
p_angle_d	0.027
p_bond_d	0.01
p_plane_restr	0.01
p_angle_deg
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4378
Nucleic Acid Atoms
Solvent Atoms	192
Heterogen Atoms	180

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
X-PLOR	model building
PROLSQ	refinement
CCP4	data scaling
X-PLOR	phasing