6PFK | pdb_00006pfk

PHOSPHOFRUCTOKINASE, INHIBITED T-STATE

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.8		THE CRYSTALS WERE GROWN FROM 1.6 - 1.8M POTASSIUM TARTRATE, PH 7.8, WITH 10MM 2-PHOSPHOGLYCOLATE, 0.5MM EDTA, 0.5MM DTT. THE CRYSTALS WERE GROWN FROM 1.6 - 1.8M POTASSIUM TARTRATE, PH 7.8, WITH 10MM 2-PHOSPHOGLYCOLATE, 0.5MM EDTA, 0.5MM DTT. 2-PHOSPHOGLYCOLATE IS AN ANALOGUE OF THE NATURAL ALLOSTERIC INHIBITOR PHOSPHOENOLPYRUVATE, SO THIS STRUCTURE REPRESENTS THE ALLOSTERICALLY INHIBITED T-STATE. THE ASYMMETRIC UNIT OF THE CRYSTAL IS THE TETRAMER WHICH OCCURS IN SOLUTION - CHAINS A, B, C, D.

Crystal Properties
Matthews coefficient	Solvent content
2.68	54.02

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 132	α = 90
b = 115.2	β = 90
c = 96.2	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray			MARRESEARCH			M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1

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	2.6	20	97	0.126		3.5		44349

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION		2.6	15	41947		97	0.188	0.16	0.255	0.22	33

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]

RMS Deviations
Key	Refinement Restraint Deviation
p_scangle_it	6
p_scbond_it	4.1
p_mcangle_it	3.9
p_mcbond_it	2.5
p_multtor_nbd	0.266
p_singtor_nbd	0.189
p_xyhbond_nbd	0.186
p_chiral_restr	0.128
p_angle_d	0.039
p_planar_d	0.039
p_bond_d	0.011
p_plane_restr	0.01
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_planar_tor
p_staggered_tor
p_orthonormal_tor
p_transverse_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9395
Nucleic Acid Atoms
Solvent Atoms	226
Heterogen Atoms	36

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction