3T0R

Crystal Structure of MjTX-I, a myotoxic Lys49-phospholipase A2 from Bothrops moojeni

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1QLL	PDB ENTRY 1QLL

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		291	32% (w/v) PEG 4000; 0.1 M Tris HCl; 0.15 M Magnesium chloride, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.07	40.51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.593	α = 90
b = 125.848	β = 105.91
c = 65.327	γ = 90

Symmetry
Space Group	C 1 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	100	CCD	MAR CCD 165 mm	Mirrors	2010-08-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	LNLS BEAMLINE D03B-MX1	1.421	LNLS	D03B-MX1

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	2.49	33.44	98	0.057	20.64	3.1	15300	15300		-3	43.016

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	2.49	2.55	98.9		0.22	4.69	3.1	1541

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	PDB ENTRY 1QLL	2.49	33.44	14529	759	97.54	0.23297	0.23123	0.26671	RANDOM	43.016

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]
0.05		-0.05	0.05		-0.12

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.347
r_dihedral_angle_4_deg	25.363
r_dihedral_angle_3_deg	21.061
r_dihedral_angle_1_deg	7.759
r_scangle_it	6.953
r_scbond_it	4.545
r_mcangle_it	3.867
r_rigid_bond_restr	2.599
r_mcbond_it	2.153
r_angle_refined_deg	2.151

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.347
r_dihedral_angle_4_deg	25.363
r_dihedral_angle_3_deg	21.061
r_dihedral_angle_1_deg	7.759
r_scangle_it	6.953
r_scbond_it	4.545
r_mcangle_it	3.867
r_rigid_bond_restr	2.599
r_mcbond_it	2.153
r_angle_refined_deg	2.151
r_chiral_restr	0.135
r_bond_refined_d	0.022
r_gen_planes_refined	0.013

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3547
Nucleic Acid Atoms
Solvent Atoms	113
Heterogen Atoms	24

Software

Software
Software Name	Purpose
HKL-2000	data collection
MOLREP	phasing
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling

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.