1ZCZ

Crystal structure of Phosphoribosylaminoimidazolecarboxamide formyltransferase / IMP cyclohydrolase (TM1249) from THERMOTOGA MARITIMA at 1.88 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION,SITTING DROP,NANODROP	5	293	20.0% PEG-6000, 0.1M Citrate pH 5.0, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.3	46.12

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.084	α = 99.26
b = 58.63	β = 96.89
c = 72.749	γ = 106.13

Symmetry
Space Group	P 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	ADSC QUANTUM 210	Single crystal, cylindrically bent, Si(220)	2005-02-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.1		ALS	5.0.1

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	1.88	50	95.6	0.056	25.65	2.9		74289

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	1.88	1.91	70.6	70.6	0.314	0.0205	1.6

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1m9n 1g8mA	1.88	50	69797	3700	95.89	0.158	0.15849	0.156	0.197	RANDOM	36.497

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]
-1.56	-0.09	-1.16	0.21	-1.07	0.68

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.025
r_dihedral_angle_4_deg	16.251
r_dihedral_angle_3_deg	13.86
r_scangle_it	6.267
r_dihedral_angle_1_deg	5.785
r_scbond_it	4.296
r_mcangle_it	2.577
r_mcbond_it	1.603
r_angle_refined_deg	1.395
r_angle_other_deg	0.985
r_mcbond_other	0.615
r_symmetry_vdw_other	0.263
r_metal_ion_refined	0.223
r_nbd_refined	0.22
r_nbd_other	0.178
r_nbtor_refined	0.177
r_xyhbond_nbd_refined	0.155
r_symmetry_hbond_refined	0.098
r_chiral_restr	0.087
r_nbtor_other	0.084
r_symmetry_vdw_refined	0.071
r_bond_refined_d	0.013
r_gen_planes_refined	0.006
r_bond_other_d	0.005
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6961
Nucleic Acid Atoms
Solvent Atoms	636
Heterogen Atoms	28

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALEPACK	data scaling
PDB_EXTRACT	data extraction
DENZO	data reduction