2GUE

Crystal structure of a complex of griffithsin with N-acetylglucosamine

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4	293	0.2 M ammonium sulfate, 30% PEG 4000; crystal soaked in a reservoir solution supplemented with 50mM N-acetylglucosamine, pH 4.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.09	41.18

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 33.83	α = 90
b = 65.45	β = 90
c = 96.18	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	IMAGE PLATE	MAR scanner 345 mm plate		2005-12-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.02	50	92.8	0.085			13606	13606		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.02	2.09	56

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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2GTY	2.02	30	13606	13563	670	93.2	0.1993	0.1993	0.1993	0.274	RANDOM	29.875

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]
1.57			-0.59		-0.99

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.123
r_dihedral_angle_4_deg	17.033
r_dihedral_angle_3_deg	16.085
r_dihedral_angle_1_deg	8.227
r_scangle_it	3.928
r_scbond_it	2.94
r_angle_refined_deg	1.969
r_mcangle_it	1.796
r_mcbond_it	1.098
r_nbtor_refined	0.308
r_xyhbond_nbd_refined	0.287
r_symmetry_vdw_refined	0.25
r_nbd_refined	0.246
r_symmetry_hbond_refined	0.236
r_chiral_restr	0.121
r_bond_refined_d	0.02
r_gen_planes_refined	0.008
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1798
Nucleic Acid Atoms
Solvent Atoms	124
Heterogen Atoms	124

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
DENZO	data reduction
HKL-2000	data scaling
SCALEPACK	data scaling
PHASER	phasing