Experiment: 2Q92

E. coli methionine aminopeptidase Mn-form with inhibitor B23

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	291	10-15% PEG 20000, 0.1 M MES (pH 6.5), vapor diffusion, hanging drop, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
1.96	37.11

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.137	α = 90
b = 60.984	β = 104.93
c = 50.693	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray		IMAGE PLATE	RIGAKU RAXIS IV			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.9	26.4	100	0.054	0.054	11.7	3.6		17799

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.9	2	100		0.221	0.221	3.4	3.5	2580

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	1XNZ	1.9	26.4	17784	1750	100	0.203	0.202	0.238	0.2357	21.767

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]
2.577		-0.856	-2.65		0.073

RMS Deviations
Key	Refinement Restraint Deviation
c_scangle_it	3.007
c_scbond_it	2.092
c_mcangle_it	1.829
c_angle_d	1.318
c_mcbond_it	1.25
c_bond_d	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2035
Nucleic Acid Atoms
Solvent Atoms	133
Heterogen Atoms	20

Software

Software
Software Name	Purpose
SCALA	data scaling
MOLREP	phasing
CNS	refinement
PDB_EXTRACT	data extraction
MOSFLM	data reduction