1CID | pdb_00001cid

CRYSTAL STRUCTURE OF DOMAINS 3 & 4 OF RAT CD4 AND THEIR RELATIONSHIP TO THE NH2-TERMINAL DOMAINS

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
3.66	66.35

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.8	α = 90
b = 77.8	β = 90
c = 82.5	γ = 120

Symmetry
Space Group	P 31 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

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Work (Depositor)	R-Free (Depositor)	Mean Isotropic B
X-RAY DIFFRACTION		2.8	10			0.233

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
p_angle_d	0.081
p_bond_d	0.022

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1381
Nucleic Acid Atoms
Solvent Atoms	14
Heterogen Atoms	1

Software

Software
Software Name	Purpose
PROLSQ	refinement