2R4Y

Ligand Migration and Binding in The Dimeric Hemoglobin of Scapharca Inaequivalvis: H69V/I114M unliganded

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	SMALL TUBES	8.5	298	1.5-2.5M PHOSPHATE, pH 8.50, SMALL TUBES, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.19	45

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 92.07	α = 90
b = 44.29	β = 90
c = 143.67	γ = 90

Symmetry
Space Group	C 2 2 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	298	IMAGE PLATE	MAR scanner 345 mm plate	OSMIC MIRRORS	2005-06-12	M	SINGLE WAVELENGTH

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

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	40	93.1	0.095	0.095	11.3	3.4		18914			14.6

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2	2.07	93.7		0.273	0.273	3.9

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	PDB ENTRY 4SDH	2	39.91	18914	918	93.1	0.176	0.176	0.21	RANDOM	21.4

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]
-4.09			-5.79		9.88

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	17.7
c_angle_deg	1.4
c_improper_angle_d	1.11
c_bond_d	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2226
Nucleic Acid Atoms
Solvent Atoms	136
Heterogen Atoms	86

Software

Software
Software Name	Purpose
CNS	refinement
MAR345	data collection
DENZO	data reduction
SCALEPACK	data scaling
CNS	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.