7JJV

Crystal waters on the nine polyproline type II helical bundle springtail antifreeze protein from Granisotoma rainieri match the ice lattice

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH		277.15	0.2 M lithium nitrate, 2.2 M ammonium sulfate

Crystal Properties
Matthews coefficient	Solvent content
1.95	37.01

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 30.489	α = 90
b = 64.214	β = 90
c = 86.267	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	PIXEL	DECTRIS PILATUS3 S 6M		2019-02-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CLSI BEAMLINE 08ID-1	0.9795	CLSI	08ID-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.21	43.171	99.9	0.064	0.067	0.019	0.999	16.5	12.4		52608

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.21	1.23	99.7		0.925	0.963	0.266	0.923	2.5	12.7

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2PNE	1.21	43.171	52554	2636	99.846	0.151	0.1489	0.1804	18.855

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]
1.659			-1.163		-0.496

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.844
r_dihedral_angle_3_deg	12.518
r_dihedral_angle_1_deg	6.907
r_rigid_bond_restr	5.746
r_scangle_it	4.304
r_scangle_other	4.304
r_scbond_it	4.223
r_scbond_other	4.207
r_lrange_it	4.023
r_lrange_other	3.912
r_mcangle_it	2.963
r_mcangle_other	2.962
r_mcbond_it	2.408
r_mcbond_other	2.396
r_angle_refined_deg	2.115
r_angle_other_deg	2.085
r_nbd_other	0.201
r_symmetry_xyhbond_nbd_refined	0.192
r_symmetry_nbd_other	0.186
r_xyhbond_nbd_refined	0.175
r_symmetry_nbd_refined	0.17
r_nbd_refined	0.166
r_nbtor_refined	0.152
r_chiral_restr	0.088
r_symmetry_nbtor_other	0.076
r_bond_refined_d	0.017
r_bond_other_d	0.011
r_gen_planes_refined	0.007
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1381
Nucleic Acid Atoms
Solvent Atoms	229
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing