2H6P

Crystal structure of HLA-B*3501 presenting the human cytochrome P450 derived peptide, KPIVVLHGY

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.6	277	18% PEG 3350, 0.1M ammonium acetate, 0.1M cacodylate, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.58	52.4

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.279	α = 90
b = 82.07	β = 90
c = 109.881	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	298	IMAGE PLATE	RIGAKU RAXIS		2005-06-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU300

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.9	65.8					36699

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.9	1.97	83.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	1.9	65.8	1.9	34808	1831	97.88	0.21133	0.20985	0.23914	RANDOM	34.982

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]
0.03			-0.3		0.27

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.393
r_dihedral_angle_4_deg	14.909
r_dihedral_angle_3_deg	11.561
r_dihedral_angle_1_deg	5.029
r_scangle_it	2.461
r_scbond_it	1.687
r_mcangle_it	1.082
r_angle_refined_deg	0.875
r_mcbond_it	0.702
r_nbtor_refined	0.293

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.393
r_dihedral_angle_4_deg	14.909
r_dihedral_angle_3_deg	11.561
r_dihedral_angle_1_deg	5.029
r_scangle_it	2.461
r_scbond_it	1.687
r_mcangle_it	1.082
r_angle_refined_deg	0.875
r_mcbond_it	0.702
r_nbtor_refined	0.293
r_nbd_refined	0.156
r_symmetry_vdw_refined	0.131
r_symmetry_hbond_refined	0.099
r_xyhbond_nbd_refined	0.072
r_chiral_restr	0.06
r_bond_refined_d	0.006
r_gen_planes_refined	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3156
Nucleic Acid Atoms
Solvent Atoms	401
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
CrystalClear	data reduction
SCALEPACK	data scaling
CNS	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729.