1RU2

CRYSTAL STRUCTURE OF A TERNARY COMPLEX OF E.COLI HPPK(V83G/DEL84-89) WITH MGAMPCPP AND 6-HYDROXYMETHYLPTERIN AT 1.48 ANGSTROM RESOLUTION (ORTHORHOMBIC FORM)

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1Q0N	PDB ID 1Q0N

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	292	PEG4000, MAGNESIUM CHLORIDE, ACETATE, GLYCEROL, pH 4.60, VAPOR DIFFUSION, HANGING DROP, temperature 292.0K

Crystal Properties
Matthews coefficient	Solvent content
1.73	28.72

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.609	α = 90
b = 63.156	β = 90
c = 36.201	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	100	CCD	ADSC QUANTUM 4	MIRROR	2001-07-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X9B	1.00928	NSLS	X9B

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	1.48	30	99.8	0.132	14.6166	7.414	20535	20535			25.3

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	1.48	1.53	99.9		0.599	1.884	6.31	1993

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	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	FREE R	PDB ID 1Q0N	1.48	30	2	4	19335	15068	1015	94.9	0.172	0.158	0.164	0.197	RANDOM	29.553

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]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
2	1106	1336.5

RMS Deviations
Key	Refinement Restraint Deviation
s_anti_bump_dis_restr	0.099
s_approx_iso_adps	0.08
s_similar_adp_cmpnt	0.067
s_non_zero_chiral_vol	0.046
s_zero_chiral_vol	0.045
s_angle_d	0.029
s_from_restr_planes	0.027
s_bond_d	0.009
s_rigid_bond_adp_cmpnt	0.003
s_similar_dist

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1160
Nucleic Acid Atoms
Solvent Atoms	130
Heterogen Atoms	48

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
SHELXL-97	refinement

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.