1AO6

CRYSTAL STRUCTURE OF HUMAN SERUM ALBUMIN

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		A PARTIAL MODEL FROM MIR EXPERIMENT WITH THE KNOWN TETRAGONAL CRYSTAL FORM

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5		PROTEIN WAS CRYSTALLIZED FROM 22-25% PEG 3350, 50 MM POTASSIUM PHOSPHATE, PH 7.0-7.5.

Crystal Properties
Matthews coefficient	Solvent content
2.44	49.51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 59.68	α = 91.07
b = 96.98	β = 103.5
c = 59.72	γ = 75.08

Symmetry
Space Group	P 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	293	IMAGE PLATE	RIGAKU RAXIS IIC	YALE MIRRORS	1996-05-10	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH2R

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	2.38	93.62	81.4	0.097	9.35	2.2		40737		1	40.9

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)
	2.38	2.5	46.9		0.272	2.41

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	POSTERIORI	A PARTIAL MODEL FROM MIR EXPERIMENT WITH THE KNOWN TETRAGONAL CRYSTAL FORM	2.5	50	37461	3814	86.2	0.218	0.218	0.282	RANDOM	48.5

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
x_dihedral_angle_d	21
x_angle_deg	1.72
x_improper_angle_d	1.59
x_bond_d	0.014
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot
x_mcbond_it
x_mcangle_it
x_scbond_it
x_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9200
Nucleic Acid Atoms
Solvent Atoms	7
Heterogen Atoms

Software

Software
Software Name	Purpose
CONTROL	data collection
PROCESS	data reduction
X-PLOR	model building
X-PLOR	refinement
CONTROL	data reduction
PROCESS	data scaling
X-PLOR	phasing