2V5B

The monomerization of Triosephosphate Isomerase from Trypanosoma cruzi

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1TCD	PDB ENTRY 1TCD

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7.5	282	CRYSTALS WERE GROWN AT 9 DEGREES. RESERVOIR SOLUTION OF 100 MM HEPES, PH 7.5, 10% PEG 6000, AND 5% 2-METHYL-2,4-PENTANEDIOL. THE CRYSTALS WERE CRYOPROTECTED BY ADDING PEG 400 30% TO THE RESERVOIR. THEY WERE IMMEDIATELY FROZEN IN LIQUID NITROGEN.

Crystal Properties
Matthews coefficient	Solvent content
1	49

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 70.327	α = 90
b = 77.673	β = 90
c = 43.052	γ = 90

Symmetry
Space Group	P 21 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	90	CCD	MARRESEARCH		2007-11-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID		APS	22-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	52.13	99.9	0.05	18.71	4.15		16558		-3.7

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2	2.02	100		0.26	3.89	4.21

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1TCD	2	52.13	15686	835	99.87	0.2137	0.21157	0.25693	RANDOM	35.952

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]
2.08			-2.56		0.48

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.796
r_dihedral_angle_4_deg	21.387
r_dihedral_angle_3_deg	18.793
r_dihedral_angle_1_deg	14.685
r_scangle_it	5.394
r_scbond_it	3.314
r_mcangle_it	2.375
r_angle_refined_deg	1.839
r_mcbond_it	1.376
r_symmetry_vdw_refined	0.321
r_nbtor_refined	0.314
r_nbd_refined	0.237
r_xyhbond_nbd_refined	0.132
r_chiral_restr	0.126
r_symmetry_hbond_refined	0.102
r_bond_refined_d	0.021
r_gen_planes_refined	0.009
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1809
Nucleic Acid Atoms
Solvent Atoms	54
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing