3ZQG | pdb_00003zqg

Structure of Tetracycline repressor in complex with antiinducer peptide-TAP2

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2NS8	PDB ENTRY 2NS8

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5		RESERVOIR: 3 M NACL, 0.1 M BIS-TRIS, PH 6.5

Crystal Properties
Matthews coefficient	Solvent content
4.24	71

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 67.35	α = 90
b = 67.35	β = 90
c = 184.99	γ = 90

Symmetry
Space Group	I 41

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	MARRESEARCH MX-225			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.1		BESSY	14.1

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	2.45	20	99.2	0.05	18.44	3.95		15051		2	64.7

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	2.45	2.6	95.8		0.65	2.77	3.82

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-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2NS8	2.45	33.67	14345	755	100	0.18544	0.18291	0.19	0.23396	0.25	RANDOM	71.709

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]
3.09			3.09		-6.17

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.471
r_dihedral_angle_4_deg	25.026
r_dihedral_angle_3_deg	23.181
r_dihedral_angle_1_deg	7.199
r_scangle_it	4.569
r_scbond_it	2.755
r_angle_refined_deg	1.972
r_mcangle_it	1.872
r_mcbond_it	0.969
r_chiral_restr	0.127
r_bond_refined_d	0.021
r_gen_planes_refined	0.008
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1771
Nucleic Acid Atoms
Solvent Atoms	28
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing