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Open data
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Basic information
| Entry | Database: PDB / ID: 6p4x | |||||||||
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| Title | Crystal Structure of the S. cerevisiae glucokinase, Glk1 | |||||||||
Components | Glucokinase-1 | |||||||||
Keywords | TRANSFERASE / hexokinase / actin atpase / glycolysis | |||||||||
| Function / homology | Function and homology informationRegulation of Glucokinase by Glucokinase Regulatory Protein / Synthesis of GDP-mannose / glucokinase / Glycolysis / fructokinase activity / glucokinase activity / mannose metabolic process / glucose 6-phosphate metabolic process / D-glucose binding / D-glucose import ...Regulation of Glucokinase by Glucokinase Regulatory Protein / Synthesis of GDP-mannose / glucokinase / Glycolysis / fructokinase activity / glucokinase activity / mannose metabolic process / glucose 6-phosphate metabolic process / D-glucose binding / D-glucose import / intracellular glucose homeostasis / Neutrophil degranulation / glycolytic process / glucose metabolic process / mitochondrion / ATP binding / plasma membrane / cytosol Similarity search - Function | |||||||||
| Biological species | ![]() | |||||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 3.59 Å | |||||||||
Authors | Stoddard, P.R. / Garner, E.C. / Murray, A.W. | |||||||||
| Funding support | United States, 2items
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Citation | Journal: Science / Year: 2020Title: Polymerization in the actin ATPase clan regulates hexokinase activity in yeast. Authors: Patrick R Stoddard / Eric M Lynch / Daniel P Farrell / Annie M Dosey / Frank DiMaio / Tom A Williams / Justin M Kollman / Andrew W Murray / Ethan C Garner / ![]() Abstract: The actin fold is found in cytoskeletal polymers, chaperones, and various metabolic enzymes. Many actin-fold proteins, such as the carbohydrate kinases, do not polymerize. We found that Glk1, a ...The actin fold is found in cytoskeletal polymers, chaperones, and various metabolic enzymes. Many actin-fold proteins, such as the carbohydrate kinases, do not polymerize. We found that Glk1, a glucokinase, forms two-stranded filaments with ultrastructure that is distinct from that of cytoskeletal polymers. In cells, Glk1 polymerized upon sugar addition and depolymerized upon sugar withdrawal. Polymerization inhibits enzymatic activity; the Glk1 monomer-polymer equilibrium sets a maximum rate of glucose phosphorylation regardless of Glk1 concentration. A mutation that eliminated Glk1 polymerization alleviated concentration-dependent enzyme inhibition. Yeast containing nonpolymerizing Glk1 were less fit when growing on sugars and more likely to die when refed glucose. Glk1 polymerization arose independently from other actin-related filaments and may allow yeast to rapidly modulate glucokinase activity as nutrient availability changes. | |||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 6p4x.cif.gz | 1.2 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb6p4x.ent.gz | 961.4 KB | Display | PDB format |
| PDBx/mmJSON format | 6p4x.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 6p4x_validation.pdf.gz | 502.8 KB | Display | wwPDB validaton report |
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| Full document | 6p4x_full_validation.pdf.gz | 591.5 KB | Display | |
| Data in XML | 6p4x_validation.xml.gz | 109 KB | Display | |
| Data in CIF | 6p4x_validation.cif.gz | 143.2 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/p4/6p4x ftp://data.pdbj.org/pub/pdb/validation_reports/p4/6p4x | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6pdtC ![]() 1ig8S S: Starting model for refinement C: citing same article ( |
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| Similar structure data |
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Assembly
| Deposited unit | ![]()
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| Noncrystallographic symmetry (NCS) | NCS domain:
NCS domain segments: Ens-ID: 1
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X-RAY DIFFRACTION
United States, 2items
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