7LVB | pdb_00007lvb

CHOLERA TOXIN B SUBUNIT WITH ATTACHED SIV EPITOPE

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1CT1

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8	290	18-24% PEG3350, 0.1M TRIS-HCL, PH 8.0, 10MM GALACTOSE

Crystal Properties
Matthews coefficient	Solvent content
2.8	56.07

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 84.29	α = 90
b = 112.428	β = 90
c = 137.102	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	PIXEL	DECTRIS EIGER X 16M	Si(111) MONOCHROMATOR	2018-04-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS-II BEAMLINE 17-ID-2	0.9795	NSLS-II	17-ID-2

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	2.25	29.26	99.7	0.118	13.3	10.2		62497

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	2.25	2.3	97.3		0.88	2.4	10.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1CT1	2.25	29.26	60584	1863	99.97	0.1577	0.1565	0.1982	0.1851	RANDOM	38.108

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]
6.17			-19.74		13.57

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.027
r_dihedral_angle_4_deg	26.394
r_dihedral_angle_3_deg	13.752
r_dihedral_angle_1_deg	6.308
r_angle_refined_deg	1.145
r_angle_other_deg	0.692
r_chiral_restr	0.063
r_bond_refined_d	0.007
r_gen_planes_refined	0.004
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8497
Nucleic Acid Atoms
Solvent Atoms	638
Heterogen Atoms	238

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
SCALA	data scaling
PHASER	phasing