4WJL

Structure of human dipeptidyl peptidase 10 (DPPY): a modulator of neuronal Kv4 channels

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	293	Crystals formed within 2-4 weeks using 100 micrometers of reservoir solution consisting of 20%(w/v) PEG 1500, 0.2 M MgCl2, 0.1 M sodium cacodylate pH 5.5.

Crystal Properties
Matthews coefficient	Solvent content
3.1	60.34

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 80.91	α = 90
b = 143.73	β = 90
c = 176.25	γ = 90

Symmetry
Space Group	P 21 21 21

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		2008-12-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97943	APS	19-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	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	3.4	111.388	99.9	0.226	0.251	0.108	6.8	5.1	29019	29019			74.4

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	3.4	3.58	99.9		0.775	0.775	0.378	0.9	5	4150

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	THROUGHOUT	1XFD	3.4	66.546	1.33	28967	1476	99.91	0.2092	0.2074	0.2419

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]
-4.2794			9.6109		-5.3315

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	20.86
f_angle_d	1.362
f_chiral_restr	0.102
f_bond_d	0.008
f_plane_restr	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	11600
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	229

Software

Software
Software Name	Purpose
PHENIX	refinement
SCALA	data scaling
PHASER	phasing
PDB_EXTRACT	data extraction
iMOSFLM	data reduction

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.