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- PDB-2axn: Crystal structure of the human inducible form 6-phosphofructo-2-k... -

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Entry
Database: PDB / ID: 2axn
TitleCrystal structure of the human inducible form 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase
Components6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (6PF-2-K/Fru- 2,6-P2ASE brain/placenta-type isozyme) (iPFK-2) [Includes: 6- phosphofructo-2-kinase (EC 2.7.1.105); Fructose-2,6-bisphosphatase (EC 3.1.3.46)]
KeywordsTRANSFERASE / HYDROLASE / bifunctional enzyme / EDTA complex
Function / homology
Function and homology information


6-phosphofructo-2-kinase / 6-phosphofructo-2-kinase activity / fructose 2,6-bisphosphate metabolic process / fructose-2,6-bisphosphate 2-phosphatase / fructose-2,6-bisphosphate 2-phosphatase activity / Regulation of glycolysis by fructose 2,6-bisphosphate metabolism / fructose metabolic process / nucleoplasm / ATP binding / cytosol
Similarity search - Function
Fructose-2,6-bisphosphatase / 6-phosphofructo-2-kinase / 6-phosphofructo-2-kinase / Phosphoglycerate/bisphosphoglycerate mutase, active site / Phosphoglycerate mutase family phosphohistidine signature. / Phosphoglycerate mutase family / Phosphoglycerate mutase-like / Histidine phosphatase superfamily, clade-1 / Histidine phosphatase superfamily (branch 1) / Histidine phosphatase superfamily ...Fructose-2,6-bisphosphatase / 6-phosphofructo-2-kinase / 6-phosphofructo-2-kinase / Phosphoglycerate/bisphosphoglycerate mutase, active site / Phosphoglycerate mutase family phosphohistidine signature. / Phosphoglycerate mutase family / Phosphoglycerate mutase-like / Histidine phosphatase superfamily, clade-1 / Histidine phosphatase superfamily (branch 1) / Histidine phosphatase superfamily / P-loop containing nucleotide triphosphate hydrolases / Rossmann fold / P-loop containing nucleoside triphosphate hydrolase / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / Chem-EDT / 6-O-phosphono-beta-D-fructofuranose / 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 3
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.1 Å
AuthorsKim, S.G. / Manes, N.P. / El-Maghrabi, M.R. / Lee, Y.H.
CitationJournal: J.Biol.Chem. / Year: 2006
Title: Crystal structure of the hypoxia-inducible form of 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase (PFKFB3): a possible new target for cancer therapy.
Authors: Kim, S.G. / Manes, N.P. / El-Maghrabi, M.R. / Lee, Y.H.
History
DepositionSep 5, 2005Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 6, 2005Provider: repository / Type: Initial release
Revision 1.1May 1, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Jul 29, 2020Group: Data collection / Derived calculations / Structure summary
Category: chem_comp / entity ...chem_comp / entity / pdbx_chem_comp_identifier / pdbx_entity_nonpoly / struct_site / struct_site_gen
Item: _chem_comp.mon_nstd_flag / _chem_comp.name ..._chem_comp.mon_nstd_flag / _chem_comp.name / _chem_comp.type / _entity.pdbx_description / _pdbx_entity_nonpoly.name
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 1.4Aug 23, 2023Group: Data collection / Database references ...Data collection / Database references / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (6PF-2-K/Fru- 2,6-P2ASE brain/placenta-type isozyme) (iPFK-2) [Includes: 6- phosphofructo-2-kinase (EC 2.7.1.105); Fructose-2,6-bisphosphatase (EC 3.1.3.46)]
hetero molecules


Theoretical massNumber of molelcules
Total (without water)60,6744
Polymers59,6941
Non-polymers9803
Water6,359353
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)102.580, 102.580, 259.840
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number179
Space group name H-MP6522
Components on special symmetry positions
IDModelComponents
11A-991-

HOH

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Components

#1: Protein 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (6PF-2-K/Fru- 2,6-P2ASE brain/placenta-type isozyme) (iPFK-2) [Includes: 6- phosphofructo-2-kinase (EC 2.7.1.105); Fructose-2,6-bisphosphatase (EC 3.1.3.46)]


Mass: 59694.137 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PFKFB3 / Production host: Escherichia coli (E. coli) / References: UniProt: Q16875
#2: Sugar ChemComp-F6P / 6-O-phosphono-beta-D-fructofuranose / FRUCTOSE-6-PHOSPHATE / 6-O-phosphono-beta-D-fructose / 6-O-phosphono-D-fructose / 6-O-phosphono-fructose


Type: D-saccharide, beta linking / Mass: 260.136 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Formula: C6H13O9P
IdentifierTypeProgram
b-D-Fruf6PO3IUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
#3: Chemical ChemComp-EDT / {[-(BIS-CARBOXYMETHYL-AMINO)-ETHYL]-CARBOXYMETHYL-AMINO}-ACETIC ACID


Mass: 292.243 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H16N2O8
#4: Chemical ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE


Mass: 427.201 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H15N5O10P2 / Comment: ADP, energy-carrying molecule*YM
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 353 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 3.398 Å3/Da / Density % sol: 63 %
Crystal growTemperature: 298 K / Method: vapor diffusion, sitting drop / pH: 7.5
Details: PEG 4000, ethylene glycol, Tris, phoshate, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: CAMD / Beamline: GCPCC / Wavelength: 1.3808 Å
DetectorType: MARRESEARCH / Detector: CCD / Date: Jun 1, 2005 / Details: silicon crystal
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.3808 Å / Relative weight: 1
ReflectionResolution: 2.1→30 Å / Num. all: 48115 / Num. obs: 44651 / % possible obs: 92.8 % / Observed criterion σ(F): 2 / Observed criterion σ(I): 3 / Redundancy: 9.6 % / Biso Wilson estimate: 45.4 Å2 / Rmerge(I) obs: 0.107 / Net I/σ(I): 16.9
Reflection shellResolution: 2.1→2.225 Å / Redundancy: 9.3 % / Rmerge(I) obs: 0.686 / Mean I/σ(I) obs: 1.5 / % possible all: 87.6

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Processing

Software
NameVersionClassification
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
CNS1.1refinement
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB 1K6M

1k6m


Resolution: 2.1→30 Å / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflectionSelection details
Rfree0.233 4459 Random
Rwork0.209 --
all0.209 44651 -
obs0.209 44651 -
Refine analyzeLuzzati coordinate error obs: 0.24 Å
Refinement stepCycle: LAST / Resolution: 2.1→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3669 0 63 353 4085

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