Experiment: 1N1M

Human Dipeptidyl Peptidase IV/CD26 in complex with an inhibitor

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	293	PEG4000, Sodium acetate, TRIS, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.86	56.99

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 119.234	α = 90
b = 123.448	β = 90
c = 131.315	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	AREA DETECTOR	MARRESEARCH		1999-10-07	M	SINGLE WAVELENGTH
2	1	x-ray	100	AREA DETECTOR	MARRESEARCH		2000-02-15	M	MAD
3	1	x-ray	100	AREA DETECTOR	MARRESEARCH		2000-02-15	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MAX II BEAMLINE I711	1.0266	MAX II	I711
2	SYNCHROTRON	ESRF BEAMLINE BM14	1.0085	ESRF	BM14
3	SYNCHROTRON	ESRF BEAMLINE BM14	0.8265	ESRF	BM14

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
1,2,3	2.5	30	93.7	0.071	15.5	9.2	67700	63399	1	1	31.5

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)
1,2,3	2.5	2.56	64.8		0.352

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 (All)	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	MAD	THROUGHOUT	2.5	29.98	67700	59045	2987	87.2	0.211	0.211	0.208	0.2046	0.263	0.2579	RANDOM	34.4

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
c_dihedral_angle_d	25.3
c_angle_deg	1.4
c_improper_angle_d	0.8
c_bond_d	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	11912
Nucleic Acid Atoms
Solvent Atoms	931
Heterogen Atoms	427

Software

Software
Software Name	Purpose
MAR345	data collection
SCALEPACK	data scaling
SOLVE	phasing
CNX	refinement