7SGQ

Protease inhibitors variant, CTI-homolog pacifastin

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1KL1

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		298	2M NaCl, 2M (NH4)SO4

Crystal Properties
Matthews coefficient	Solvent content
1.81	32.17

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 65.814	α = 90
b = 72.73	β = 123.1
c = 41.235	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	RIGAKU SATURN 944+		2016-11-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007 HF	1.54

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	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	2.09	50	95.9	0.132	0.143	0.054	4.4	6.7		9376

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	2.09	2.13	58.3		0.495	0.589	0.308	0.82		2.9

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	1kl1	2.09	27.58	8919	455	96.41	0.251	0.2472	0.3222	RANDOM	28.86

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]
0.02		0.31	-0.3		-0.06

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	24.386
r_dihedral_angle_4_deg	22.403
r_dihedral_angle_3_deg	19.185
r_dihedral_angle_1_deg	8.639
r_angle_refined_deg	1.768
r_angle_other_deg	1.34
r_chiral_restr	0.077
r_bond_refined_d	0.009
r_gen_planes_refined	0.006
r_gen_planes_other	0.002

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	24.386
r_dihedral_angle_4_deg	22.403
r_dihedral_angle_3_deg	19.185
r_dihedral_angle_1_deg	8.639
r_angle_refined_deg	1.768
r_angle_other_deg	1.34
r_chiral_restr	0.077
r_bond_refined_d	0.009
r_gen_planes_refined	0.006
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1373
Nucleic Acid Atoms
Solvent Atoms	42
Heterogen Atoms	10

Software

Software
Software Name	Purpose
HKL-2000	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
PHASER	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.