3ICB | pdb_00003icb

THE REFINED STRUCTURE OF VITAMIN D-DEPENDENT CALCIUM-BINDING PROTEIN FROM BOVINE INTESTINE. MOLECULAR DETAILS, ION BINDING, AND IMPLICATIONS FOR THE STRUCTURE OF OTHER CALCIUM-BINDING PROTEINS

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.05	40.08

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.2	α = 90
b = 42.6	β = 90
c = 29.2	γ = 90

Symmetry
Space Group	P 21 21 2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	Mean Isotropic B
X-RAY DIFFRACTION		2.3	9			0.178	0.1687

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
o_bond_d	0.016
o_bond_d_na
o_bond_d_prot
o_angle_d
o_angle_d_na
o_angle_d_prot
o_angle_deg
o_angle_deg_na
o_angle_deg_prot
o_dihedral_angle_d
o_dihedral_angle_d_na
o_dihedral_angle_d_prot
o_improper_angle_d
o_improper_angle_d_na
o_improper_angle_d_prot
o_mcbond_it
o_mcangle_it
o_scbond_it
o_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	600
Nucleic Acid Atoms
Solvent Atoms	36
Heterogen Atoms	7

Software

Software
Software Name	Purpose
PROLSQ	refinement