6KOY

Crystal structure of two domain M1 Zinc metallopeptidase E323A mutant bound to L-tryptophan amino acid

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH		294	Bis-Tris, ammonium formate, PEG3350

Crystal Properties
Matthews coefficient	Solvent content
1.85	33.25

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.833	α = 89.754
b = 57.457	β = 82.636
c = 69.492	γ = 67.928

Symmetry
Space Group	P 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	IMAGE PLATE	MAR scanner 345 mm plate	mirrors	2018-09-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	RRCAT INDUS-2 BEAMLINE PX-BL21	0.9794	RRCAT INDUS-2	PX-BL21

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	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	2.35	44.89	97.5	0.996	14.3	2.6		29930			24.45

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.35	2.43			0.945	4.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	6a8z	2.35	41.91	1.99	29913	1450	97.63	0.1685	0.1658	0.2215	23.37

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	2.9443
f_angle_d	0.6785
f_chiral_restr	0.0453
f_plane_restr	0.0051
f_bond_d	0.0037

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6528
Nucleic Acid Atoms
Solvent Atoms	332
Heterogen Atoms	32

Software

Software
Software Name	Purpose
PHENIX	refinement
Coot	model building
PHASER	phasing
Aimless	data scaling
XDS	data reduction
MAR345dtb	data collection

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.