6KP1

Crystal structure of two domain M1 zinc metallopeptidase E323A mutant bound to L-methionine amino acid

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	6A8Z

Crystallization

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

Crystal Properties
Matthews coefficient	Solvent content
1.84	33.25

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.806	α = 89.921
b = 57.496	β = 82.483
c = 69.444	γ = 67.829

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	2018-09-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	RRCAT INDUS-2 BEAMLINE PX-BL21	0.9778	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	2.19	47.5	97.3	0.997	9.6	3.3		36707			20.55

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	2.19	2.26			0.956	3.2

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	2.19	21.45	2.01	36649	1772	97.29	0.2204	0.2179	0.2702	23.26

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	2.8672
f_angle_d	0.6161
f_chiral_restr	0.0408
f_plane_restr	0.0044
f_bond_d	0.0025

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6583
Nucleic Acid Atoms
Solvent Atoms	397
Heterogen Atoms	22

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 R01GM157729.