1VKF

CRYSTAL STRUCTURE OF A GLYCEROL UPTAKE OPERON ANTITERMINATOR-RELATED PROTEIN (TM1436) FROM THERMOTOGA MARITIMA MSB8 AT 1.65 A RESOLUTION

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION,SITTING DROP,NANODROP	5.5	277	Citrate pH 5.5, 50% PEG-200, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.94	57.88

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 84.527	α = 90
b = 138.783	β = 90
c = 160.626	γ = 90

Symmetry
Space Group	C 2 2 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 315		2004-04-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2		SSRL	BL9-2

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	1.65	80.31	97.2	0.074	13.3	4.3		110006			33.7

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.65	1.69	82.4		0.576	1.3	2.5	6833

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1.65	72.19	104433	5519	97.1	0.18649	0.18517	0.21126	RANDOM	18.094

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]
-2.35			-0.84		3.19

RMS Deviations
Key	Refinement Restraint Deviation
r_scangle_it	8.002
r_dihedral_angle_1_deg	6.231
r_scbond_it	5.405
r_mcangle_it	3.341
r_mcbond_it	2.216
r_angle_refined_deg	1.598
r_angle_other_deg	0.836
r_symmetry_vdw_other	0.257
r_nbd_other	0.239
r_nbd_refined	0.214
r_xyhbond_nbd_refined	0.174
r_symmetry_hbond_refined	0.161
r_symmetry_vdw_refined	0.129
r_chiral_restr	0.095
r_nbtor_other	0.085
r_bond_refined_d	0.02
r_gen_planes_refined	0.007
r_bond_other_d	0.005
r_gen_planes_other	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5246
Nucleic Acid Atoms
Solvent Atoms	391
Heterogen Atoms	44

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
MOLREP	phasing
REFMAC	refinement
CCP4	data scaling