3FDG

The crystal structure of the dipeptidase AC, Metallo peptidase. MEROPS family M19

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	289	0.2M Magnesium chloride hexahydrate, 0.1M Tris, 25% w/v Polyethylene glycol 3350, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
2.18	43.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 46.246	α = 82.42
b = 50.683	β = 73.61
c = 81.594	γ = 68.18

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	CCD	ADSC QUANTUM 315	mirrors	2008-11-06	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.9794, 0.9796	APS	19-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	78.33	90.69	0.093	16.48	2.5	57863	52476	2	2	22.3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.848	55.18		0.27	2.44	2.2	4494

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	MAD	THROUGHOUT	1.8	78.33	57863	52476	2814	90.69	0.17779	0.17531	0.2226	RANDOM	21.335

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]
-0.6	-0.67	0.12	2.86	1.12	-2.12

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.078
r_dihedral_angle_4_deg	21.609
r_dihedral_angle_3_deg	14.489
r_dihedral_angle_1_deg	6.217
r_scangle_it	4.946
r_scbond_it	3.207
r_angle_refined_deg	1.837
r_mcangle_it	1.68
r_mcbond_it	0.982
r_chiral_restr	0.171

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.078
r_dihedral_angle_4_deg	21.609
r_dihedral_angle_3_deg	14.489
r_dihedral_angle_1_deg	6.217
r_scangle_it	4.946
r_scbond_it	3.207
r_angle_refined_deg	1.837
r_mcangle_it	1.68
r_mcbond_it	0.982
r_chiral_restr	0.171
r_bond_refined_d	0.02
r_gen_planes_refined	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5296
Nucleic Acid Atoms
Solvent Atoms	448
Heterogen Atoms	4

Software

Software
Software Name	Purpose
SBC-Collect	data collection
HKL-3000	phasing
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	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 R01GM133198.