Experiment: 4IGD

Crystal structure of the zymogen catalytic region of Human MASP-1

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3GOV	INDIVIDUAL DOMAINS OF PDB ENTRY 3GOV

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	293	20%(v/v) PEG400, 0.1M imidazole, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.85	56.84

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 63.31	α = 90
b = 69.61	β = 90
c = 117.68	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 210	Sagitally focusing Ge(220) and a multilayer	2011-04-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-1	0.9334	ESRF	ID14-1

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	2.5	20	99.7	0.073	18.75	6.84	18608	18608		-3	53.502

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	2.5	2.56	100		0.632	3.37	6.14	1358

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	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	MOLECULAR REPLACEMENT	INDIVIDUAL DOMAINS OF PDB ENTRY 3GOV	2.5	19.971	17273	17273	878	93.01	0.2207	0.2207	0.2193	0.2109	0.2482	0.2435	random

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]
5.2295			-7.7581		2.5286

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	11.793
f_angle_d	0.569
f_chiral_restr	0.04
f_plane_restr	0.003
f_bond_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3029
Nucleic Acid Atoms
Solvent Atoms	91
Heterogen Atoms	12

Software

Software
Software Name	Purpose
MxCuBE	data collection
MOLREP	phasing
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling