1O0X

Crystal structure of Methionine aminopeptidase (TM1478) from Thermotoga maritima at 1.90 A resolution

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.6	293	19% iso-propanol, 19% P4K, 0.095 M Na-citrate pH 5.6, 5% glycerol, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 293K, pH 5.60

Crystal Properties
Matthews coefficient	Solvent content
2.47	50.14

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.58	α = 90
b = 62.58	β = 90
c = 146.13	γ = 90

Symmetry
Space Group	P 43 21 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		2001-05-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.3		ALS	5.0.3

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	1.9	50	90.6	0.07	16.53			21470			53

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.9	1.97	90		2.95

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT WITH PROGRAM AMORE	FREE R	1MAT	1.9	47.53	21420	1098	90.3	0.203	0.203	0.19	0.254	0.24	RANDOM	44.2

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]
-1.278			-4.288		5.566

RMS Deviations
Key	Refinement Restraint Deviation
c_scangle_it	7.194
c_scbond_it	5.377
c_mcangle_it	3.998
c_mcbond_it	3.355
c_angle_deg	1.99
c_bond_d	0.018
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1934
Nucleic Acid Atoms
Solvent Atoms	195
Heterogen Atoms

Software

Software
Software Name	Purpose
Blu-Ice	data collection
MOSFLM	data reduction
CCP4	data reduction
SCALEPACK	data scaling
SnB	phasing
MLPHARE	phasing
CCP4	model building
SOLVE	phasing
CNS	refinement
CCP4	data scaling
CCP4	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 R01GM157729.