7KYW

Crystal structure of timothy grass allergen Phl p 12.0101 reveals an unusual profilin dimer

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6.5	277	0.5 M sodium citrate at pH 6.5

Crystal Properties
Matthews coefficient	Solvent content
3.05	59.68

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.344	α = 90
b = 56.344	β = 90
c = 94.379	γ = 120

Symmetry
Space Group	P 31 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	PIXEL	DECTRIS EIGER X 16M		2020-10-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID	1.0000	APS	22-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	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	2.3	40	99.8	0.054	0.054	0.066	0.021	0.942	50.3	10.4		8119		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.3	2.34	100		0.698	0.698	0.766	0.238	0.825	2.2	10.1

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	5FEF	2.3	33.94	7700	395	99.73	0.1997	0.1972	0.2415	RANDOM	65.408

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]
-0.88	-0.44		-0.88		2.85

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	29.988
r_dihedral_angle_3_deg	11.9
r_dihedral_angle_4_deg	8.655
r_dihedral_angle_1_deg	5.285
r_angle_other_deg	2.294
r_angle_refined_deg	1.49
r_chiral_restr	0.074
r_bond_other_d	0.036
r_bond_refined_d	0.014
r_gen_planes_other	0.011

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	29.988
r_dihedral_angle_3_deg	11.9
r_dihedral_angle_4_deg	8.655
r_dihedral_angle_1_deg	5.285
r_angle_other_deg	2.294
r_angle_refined_deg	1.49
r_chiral_restr	0.074
r_bond_other_d	0.036
r_bond_refined_d	0.014
r_gen_planes_other	0.011
r_gen_planes_refined	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	992
Nucleic Acid Atoms
Solvent Atoms	16
Heterogen Atoms	13

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-3000	data reduction
HKL-3000	data scaling
MOLREP	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 R01GM133198.