2OOC

Crystal structure of Histidine Phosphotransferase ShpA (NP_419930.1) from Caulobacter crescentus at 1.52 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.9	277	NANODROP, 1.5% polyethylene glycol 400, 15.0% Glycerol, 1.9M ammonium sulfate, 0.1M HEPES pH 6.9, VAPOR DIFFUSION, SITTING DROP, temperature 277K
2	VAPOR DIFFUSION, SITTING DROP	6.9	277	NANODROP, 1.5% polyethylene glycol 400, 15.0% Glycerol, 1.9M ammonium sulfate, 0.1M HEPES pH 6.9, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.373	α = 90
b = 62.373	β = 90
c = 115.574	γ = 120

Symmetry
Space Group	P 32 2 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	MARMOSAIC 325 mm CCD	Flat mirror (vertical focusing)	2007-01-18	M	SINGLE WAVELENGTH
2	2	x-ray	100	CCD	ADSC QUANTUM 4	1m long Rh coated bent cylindrical mirror for horizontal and vertical focussing	2007-01-17	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.91837	SSRL	BL11-1
2	SYNCHROTRON	SSRL BEAMLINE BL1-5	0.918381, 0.978575	SSRL	BL1-5

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
1,2	1.52	28.89	100	0.068	0.068	6.2	6.9		40951			23.88

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)
1,2	1.52	1.56	100		0.811	0.811	0.9	5.1	2993

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	1.52	28.89	40897	2051	99.9	0.168	0.168	0.166	0.202	RANDOM	22.111

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]
1.12	0.56		1.12		-1.67

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.183
r_dihedral_angle_3_deg	13.712
r_dihedral_angle_4_deg	11.333
r_scangle_it	7.786
r_scbond_it	5.298
r_dihedral_angle_1_deg	4.608
r_mcangle_it	3.037
r_mcbond_it	2.352
r_angle_refined_deg	1.704
r_angle_other_deg	1.047
r_mcbond_other	0.588
r_symmetry_vdw_other	0.3
r_nbd_refined	0.23
r_symmetry_hbond_refined	0.204
r_xyhbond_nbd_refined	0.193
r_nbd_other	0.191
r_nbtor_refined	0.188
r_chiral_restr	0.114
r_nbtor_other	0.092
r_symmetry_vdw_refined	0.087
r_bond_refined_d	0.018
r_bond_other_d	0.009
r_gen_planes_refined	0.008
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1547
Nucleic Acid Atoms
Solvent Atoms	219
Heterogen Atoms	37

Software

Software
Software Name	Purpose
MolProbity	model building
SHELX	phasing
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
MAR345	data collection
MOSFLM	data reduction
CCP4	data scaling
SHELXD	phasing
autoSHARP	phasing