3AT6

Side-necked turtle (Pleurodira, Chelonia, REPTILIA) hemoglobin: cDNA-derived primary structures and X-ray crystal structures of Hb A

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.8	56.07

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 65.994	α = 90
b = 65.994	β = 90
c = 284.823	γ = 120

Symmetry
Space Group	P 61 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	RIGAKU RAXIS VII	CMF	2008-12-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E SUPERBRIGHT	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	2.35	33.15	87.2	0.136	5.7	3.28	14223	14223			32.1

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)
	2.35	2.43	99.7		0.354	3.5	4.53	1582

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	3AT5	2.35	33.15	14120	14120	710	86.5	0.24	0.295	RANDOM	43.6

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]
3.02	8.05		3.02		-6.03

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	17.2
c_scangle_it	7.58
c_mcangle_it	6.19
c_scbond_it	5.8
c_mcbond_it	4.2
c_angle_deg	1.2
c_improper_angle_d	0.82
c_bond_d	0.014
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2265
Nucleic Acid Atoms
Solvent Atoms	120
Heterogen Atoms	86

Software

Software
Software Name	Purpose
CrystalClear	data collection
EPMR	phasing
CNX	refinement
CrystalClear	data reduction
CrystalClear	data scaling