3B6S

Crystal Structure of hla-b*2705 Complexed with the Citrullinated Vasoactive Intestinal Peptide Type 1 Receptor (vipr) Peptide (residues 400-408)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	281	0.1M Tris HCl, 24% PEG 8000, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 281K

Crystal Properties
Matthews coefficient	Solvent content
2.56	51.92

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 50.661	α = 90
b = 82.797	β = 90
c = 110.286	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC QUANTUM 315		2006-12-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29	0.982	ESRF	ID29

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	1.8	50	95	0.093	13.3			41639

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)
	1.8	1.86	86.3		0.486			3713

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	THROUGHOUT	1OGT	1.8	41.42	41581	2096	94.72	0.186	0.184	0.223	RANDOM	15.459

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]
					0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.682
r_dihedral_angle_4_deg	15.826
r_dihedral_angle_3_deg	12.262
r_dihedral_angle_1_deg	5.605
r_scangle_it	2.082
r_scbond_it	1.305
r_angle_refined_deg	1.033
r_mcangle_it	0.88
r_mcbond_it	0.549
r_nbtor_refined	0.295

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.682
r_dihedral_angle_4_deg	15.826
r_dihedral_angle_3_deg	12.262
r_dihedral_angle_1_deg	5.605
r_scangle_it	2.082
r_scbond_it	1.305
r_angle_refined_deg	1.033
r_mcangle_it	0.88
r_mcbond_it	0.549
r_nbtor_refined	0.295
r_nbd_refined	0.183
r_xyhbond_nbd_refined	0.133
r_symmetry_vdw_refined	0.122
r_symmetry_hbond_refined	0.104
r_chiral_restr	0.073
r_bond_refined_d	0.007
r_gen_planes_refined	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3225
Nucleic Acid Atoms
Solvent Atoms	555
Heterogen Atoms

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
ADSC	data collection
MOLREP	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.