1XA4

Crystal structure of CaiB, a type III CoA transferase in carnitine metabolism

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.5	293	PEG 3350, Ammonium Sulphate, Glycerol, Sodium Chloride, Bis-tris, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.6	51.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.595	α = 90
b = 125.668	β = 108.96
c = 69.963	γ = 90

Symmetry
Space Group	P 1 21 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	MARRESEARCH		2004-02-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MAX II BEAMLINE I711	1.09	MAX II	I711

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	1.9	30	98.9	0.067	7.71	3.95	70549	70549		-3	19.9

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)
	1.9	2	95.5		0.23	3.01	3.7

Refinement

Statistics
Diffraction ID	Structure Solution 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	PDB entry 1XA3	1.9	30	66935	66935	3581	98.83	0.14528	0.14528	0.14363	0.17554	RANDOM	19.01

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]
0.06		0.54	0.2		0.1

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.976
r_scangle_it	4.238
r_scbond_it	2.752
r_mcangle_it	1.564
r_angle_refined_deg	1.459
r_angle_other_deg	0.844
r_mcbond_it	0.841
r_nbd_other	0.244
r_symmetry_vdw_other	0.221
r_nbd_refined	0.217
r_symmetry_vdw_refined	0.196
r_symmetry_hbond_refined	0.193
r_xyhbond_nbd_refined	0.168
r_chiral_restr	0.09
r_nbtor_other	0.085
r_bond_refined_d	0.018
r_gen_planes_refined	0.007
r_gen_planes_other	0.006
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6254
Nucleic Acid Atoms
Solvent Atoms	575
Heterogen Atoms	81

Software

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