2Z8A

Ligand Migration and Binding in The Dimeric Hemoglobin of Scapharca Inaequivalvis: I25W with CO Bound to HEME and in the Presence of 3 Atoms of XE

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	SMALL TUBES	7.5	298	1.5-2.5M PHOSPHATE BUFFER, pH 7.50, SMALL TUBES, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.11	42

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 92.66	α = 90
b = 43.39	β = 122.02
c = 82.29	γ = 90

Symmetry
Space Group	C 1 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	110	CCD	ADSC QUANTUM 315		2005-11-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-BM-C	0.9	APS	14-BM-C

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	1.06	46.3	95.3	0.072	0.072	24.1	4.4		118984

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)
	1.06	1.1	90.4		0.286	0.286	5.5

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 3SDH	1.06	46.3	111984	10566	95.3	0.143	0.143	0.162	RANDOM

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
s_approx_iso_adps	0.077
s_from_restr_planes	0.0242
s_non_zero_chiral_vol	0.022
s_zero_chiral_vol	0.017
s_angle_d	0.014
s_anti_bump_dis_restr	0.014
s_bond_d	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2296
Nucleic Acid Atoms
Solvent Atoms	373
Heterogen Atoms	99

Software

Software
Software Name	Purpose
SHELX	model building
SHELXL-97	refinement
BIOCARS	data collection
DENZO	data reduction
SCALEPACK	data scaling

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.