2ORJ

crystal structure of the trimeric neck and carbohydrate recognition domain of human surfactant protein D in complex with N-acetyl mannosamine

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2GGU	PDB ENTRY 2GGU

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	290	150mM NaCl, 10mM CaCl2, 12% PEG 8000, 100mM HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 290K

Crystal Properties
Matthews coefficient	Solvent content
3.25	62.18

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.63	α = 90
b = 108.33	β = 91.51
c = 55.97	γ = 90

Symmetry
Space Group	P 1 21 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	CCD	ADSC QUANTUM 4		2005-08-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X8C	1.0	NSLS	X8C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	1.8	26.5	98	0.045	0.045	25.8	3.8	61345	60089

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.8	1.86	96.2		0.17	0.17	9.7	3.5	5874

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	PDB ENTRY 2GGU	1.8	26.47	56270	54297	4844	96.51	0.18059	0.18059	0.1784	0.20545	RANDOM	23.32

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]
0.09		-0.33	0.97		-1.08

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.15
r_dihedral_angle_4_deg	18.938
r_dihedral_angle_3_deg	12.899
r_dihedral_angle_1_deg	5.128
r_scangle_it	3.514
r_scbond_it	2.175
r_mcangle_it	1.33
r_angle_refined_deg	1.246
r_mcbond_it	1.053
r_nbtor_refined	0.3

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.15
r_dihedral_angle_4_deg	18.938
r_dihedral_angle_3_deg	12.899
r_dihedral_angle_1_deg	5.128
r_scangle_it	3.514
r_scbond_it	2.175
r_mcangle_it	1.33
r_angle_refined_deg	1.246
r_mcbond_it	1.053
r_nbtor_refined	0.3
r_symmetry_vdw_refined	0.207
r_nbd_refined	0.204
r_xyhbond_nbd_refined	0.132
r_symmetry_hbond_refined	0.12
r_metal_ion_refined	0.081
r_chiral_restr	0.08
r_bond_refined_d	0.012
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3462
Nucleic Acid Atoms
Solvent Atoms	524
Heterogen Atoms	54

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling
CNS	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729.