1LO6

Human Kallikrein 6 (hK6) active form with benzamidine inhibitor at 1.56 A resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	277.15	30% (W/V) PEG 4000, 0.2M Magnesium chloride hexahydrate, 0.1M Tris hydrochloride, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277.15K

Crystal Properties
Matthews coefficient	Solvent content
2.12	41.95

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.207	α = 90
b = 61.814	β = 90
c = 85.838	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	103	IMAGE PLATE	RIGAKU RAXIS IIC	OSMIC BLUE CONFOCAL MIRRORS	2001-10-24	M	SINGLE WAVELENGTH
2	1	103	CCD	ADSC QUANTUM 4		2002-04-14

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.5418
2	SYNCHROTRON	APS BEAMLINE 14-BM-C	0.9000	APS	14-BM-C

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	1.56	25.97	95.3	0.077	37.5		30440	28869		-3	25.5

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)
	1.56	1.6	89.9		0.466	4.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1L2E	1.56	25.97	3	30440	26163	753		0.229	0.197	0.196	0.223	RANDOM	30.5

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_angle_deg	1.51654
c_bond_d	0.006549

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1713
Nucleic Acid Atoms
Solvent Atoms	141
Heterogen Atoms	10

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
CNS	phasing

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.