1Y33

Crystal structure of the complex of subtilisin BPN' with chymotrypsin inhibitor 2 T58P mutant

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1TM3

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	277	sodium citrate, isopropanol, PEG 2000, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.7	54.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 94.02	α = 90
b = 94.02	β = 90
c = 186.716	γ = 120

Symmetry
Space Group	P 65 2 2

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	ADSC QUANTUM 4		2002-03-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.1	1.000	ALS	5.0.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.8	81.65	98.1	0.145	20	20.3	44898	44898		-3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	1TM3	1.8	81.65	44898	42666	2232	97.67	0.15375	0.15241	0.17892	inherited from 1TM3	17.376

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]
0.35	0.17		0.35		-0.52

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.883
r_scangle_it	4.241
r_scbond_it	2.597
r_angle_refined_deg	1.813
r_mcangle_it	1.621
r_mcbond_it	0.96
r_symmetry_vdw_refined	0.417
r_symmetry_hbond_refined	0.24
r_nbd_refined	0.223
r_xyhbond_nbd_refined	0.175

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.883
r_scangle_it	4.241
r_scbond_it	2.597
r_angle_refined_deg	1.813
r_mcangle_it	1.621
r_mcbond_it	0.96
r_symmetry_vdw_refined	0.417
r_symmetry_hbond_refined	0.24
r_nbd_refined	0.223
r_xyhbond_nbd_refined	0.175
r_chiral_restr	0.138
r_metal_ion_refined	0.06
r_bond_refined_d	0.022
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2578
Nucleic Acid Atoms
Solvent Atoms	479
Heterogen Atoms	84

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
TRUNCATE	data reduction
EPMR	phasing
REFMAC	refinement
CCP4	data scaling
TRUNCATE	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.