2I1O

Crystal Structure of a Nicotinate Phosphoribosyltransferase from Thermoplasma acidophilum

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	295	0.1M TRIS, 45% MPD, 0.2 M AMMONIUM ACETATE, PH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
3.65	66.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 135.012	α = 90
b = 135.012	β = 90
c = 120.324	γ = 120

Symmetry
Space Group	P 63 2 2

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 210		2003-07-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.2	1.0000	ALS	5.0.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.4	50	100			25884	25884		-3	24.9

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.4	2.44	99

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	PDB entry 1YTD	2.4	19.83	25824	24507	2416	94.9	0.208	0.208	0.25	RANDOM	37.4

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]
3.79	4.08		3.79		-7.58

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	23.1
c_scangle_it	11.11
c_mcangle_it	7.58
c_scbond_it	7.25
c_mcbond_it	4.7
c_angle_deg	1.6
c_improper_angle_d	0.87
c_bond_d	0.006
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3011
Nucleic Acid Atoms
Solvent Atoms	121
Heterogen Atoms	64

Software

Software
Software Name	Purpose
CNS	refinement
ADSC	data collection
DENZO	data reduction
SCALEPACK	data scaling
CNS	phasing