1Q3X

Crystal structure of the catalytic region of human MASP-2

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5	293	PEG 6000, sodium chloride, glycerol, Tris-HCl , pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K, pH 7.50

Crystal Properties
Matthews coefficient	Solvent content
2.11	41.62

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 40.95	α = 96.44
b = 41.521	β = 91.77
c = 102.994	γ = 119.52

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	IMAGE PLATE	MARRESEARCH	MIRRORS	2001-12-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	LURE BEAMLINE DW32		LURE	DW32

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	2.23	50.64	94.8	0.083	7.6	1.8		27022			23.9

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	2.23	2.29	74.3		0.255	2.9	1.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1ELV	2.23	50.64	27020	25664	1356	94.8	0.176	0.174	0.224	RANDOM	18.11

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]
-0.46	0.18	0.19	-0.7	-0.26	1.29

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.139
r_scangle_it	2.305
r_mcangle_it	2.213
r_scbond_it	1.593
r_mcbond_it	1.365
r_angle_refined_deg	0.904
r_symmetry_vdw_refined	0.266
r_nbd_refined	0.218
r_xyhbond_nbd_refined	0.199
r_symmetry_hbond_refined	0.191
r_chiral_restr	0.058
r_bond_refined_d	0.006
r_gen_planes_refined	0.003
r_bond_other_d
r_angle_other_deg
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_gen_planes_other
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4818
Nucleic Acid Atoms
Solvent Atoms	362
Heterogen Atoms	44

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
BEAST	phasing