1TG1

Crystal Structure of the complex formed between russells viper phospholipase A2 and a designed peptide inhibitor PHQ-Leu-Val-Arg-Tyr at 1.2A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	298	0.2M AMMONIUM SULPHATE, 30% PEG, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.48	48.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.496	α = 90
b = 52.496	β = 90
c = 47.93	γ = 90

Symmetry
Space Group	P 43

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	200	CCD	MARRESEARCH	mirror	2004-05-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X11	0.981	EMBL/DESY, HAMBURG	X11

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.2	30	100	0.077	20.1	5.8		35174			10.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.2	1.27	99.4		0.454	2.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 1skg	1.25	29.36	35174	35174	921	100	0.1884	0.1884	0.18816	0.1971	RANDOM	12.325

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]
0.09			0.09		-0.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	18.731
r_dihedral_angle_1_deg	6.902
r_scangle_it	2.243
r_angle_refined_deg	2.026
r_scbond_it	1.454
r_mcangle_it	1.2
r_angle_other_deg	1.046
r_mcbond_it	0.648
r_nbd_refined	0.434
r_nbd_other	0.245
r_symmetry_vdw_other	0.237
r_symmetry_vdw_refined	0.235
r_symmetry_hbond_refined	0.217
r_xyhbond_nbd_refined	0.195
r_xyhbond_nbd_other	0.119
r_chiral_restr	0.098
r_bond_refined_d	0.013
r_gen_planes_refined	0.009
r_gen_planes_other	0.006
r_bond_other_d	0.002
r_dihedral_angle_2_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_nbtor_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	982
Nucleic Acid Atoms
Solvent Atoms	207
Heterogen Atoms	33

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
SCALEPACK	data scaling
AMoRE	phasing