2GSJ

cDNA cloning and 1.75A crystal structure determination of PPL2, a novel chimerolectin from Parkia platycephala seeds exhibiting endochitinolytic activity

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6	293	0.2 M ammonium acetate, 0,1 M trisodium citrate dehydrate, pH 5.6 and 30% (w/v) PEG 4000, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.15	42.74

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.19	α = 90
b = 59.949	β = 90
c = 76.697	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	IMAGE PLATE	MAR scanner 180 mm plate		2004-06-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	LNLS BEAMLINE D03B-MX1	1.43	LNLS	D03B-MX1

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	1.73	32.31	27	0.04	0.04	20.8	3.7	25805	25805

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)
	1.73	1.83			0.228	8.1	3.6	12669

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	1.73	32.31	2	24487	23017	1285	94.74	0.2046	0.1749	0.16888	0.19873	RANDOM	14.678

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			0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.035
r_dihedral_angle_4_deg	15.484
r_dihedral_angle_3_deg	13.565
r_dihedral_angle_1_deg	6.679
r_scangle_it	3.407
r_scbond_it	2.186
r_angle_refined_deg	1.485
r_mcangle_it	1.444
r_mcbond_it	0.81
r_nbtor_refined	0.321

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.035
r_dihedral_angle_4_deg	15.484
r_dihedral_angle_3_deg	13.565
r_dihedral_angle_1_deg	6.679
r_scangle_it	3.407
r_scbond_it	2.186
r_angle_refined_deg	1.485
r_mcangle_it	1.444
r_mcbond_it	0.81
r_nbtor_refined	0.321
r_symmetry_vdw_refined	0.288
r_symmetry_hbond_refined	0.242
r_nbd_refined	0.224
r_xyhbond_nbd_refined	0.159
r_chiral_restr	0.095
r_bond_refined_d	0.012
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2086
Nucleic Acid Atoms
Solvent Atoms	249
Heterogen Atoms	20

Software

Software
Software Name	Purpose
MAR345	data collection
SCALA	data scaling
AMoRE	phasing
REFMAC	refinement
CCP4	data scaling

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.