1M4C | pdb_00001m4c

Crystal Structure of Human Interleukin-2

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	298	pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
1.99	38.1

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 32.181	α = 90
b = 48.597	β = 97.76
c = 79.209	γ = 90

Symmetry
Space Group	P 1 21 1

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 IV	mirrors	2000-10-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.5418

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	2.4	10	94.8	0.063	0.063	14	3.3	8581	8581			36.3

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)
	2.4	2.48	58.1		0.259	0.259	4.1	1.3	619

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.4	10	8581	8581	438	94.8	0.28832	0.28832	0.28617	0.2804	0.33287	0.3314	RANDOM	44.019

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]
-3.56		-0.41	0.42		3.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	17.037
r_mcangle_it	2.909
r_scangle_it	2.45
r_dihedral_angle_1_deg	1.738
r_mcbond_it	1.655
r_scbond_it	1.472
r_angle_refined_deg	0.713
r_symmetry_vdw_refined	0.255
r_nbd_refined	0.24
r_symmetry_hbond_refined	0.204
r_xyhbond_nbd_refined	0.133
r_chiral_restr	0.055
r_bond_refined_d	0.003
r_gen_planes_refined	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1872
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
d*TREK	data reduction
AMoRE	phasing
REFMAC	refinement
d*TREK	data scaling