3O8N

Structure of phosphofructokinase from rabbit skeletal muscle

Summary for 3O8N

• Entry DOI: 10.2210/pdb3o8n/pdb
• Related: 3O8L
• Descriptor: 6-phosphofructokinase, muscle type, ADENOSINE-5'-DIPHOSPHATE, PHOSPHATE ION (3 entities in total)
• Functional Keywords: kinase, transferase
• Biological source: Oryctolagus cuniculus (European rabbit,Japanese white rabbit,domestic rabbit,rabbits)
• Total number of polymer chains: 2
• Total formula weight: 169671.24

Authors

Banaszak, K.,Chang, S.H.,Rypniewski, W. (deposition date: 2010-08-03, release date: 2011-02-02, Last modification date: 2023-09-06)

Primary citation

Banaszak, K.,Mechin, I.,Obmolova, G.,Oldham, M.,Chang, S.H.,Ruiz, T.,Radermacher, M.,Kopperschlager, G.,Rypniewski, W.
The Crystal Structures of Eukaryotic Phosphofructokinases from Baker's Yeast and Rabbit Skeletal Muscle.
J.Mol.Biol., 407:284-297, 2011

PubMed Abstract: Phosphofructokinase 1 (PFK) is a multisubunit allosteric enzyme that catalyzes the principal regulatory step in glycolysis-the phosphorylation of fructose 6-phosphate to fructose 1,6-bisphosphate by ATP. The activity of eukaryotic PFK is modulated by a number of effectors in response to the cell's needs for energy and building blocks for biosynthesis. The crystal structures of eukaryotic PFKs-from Saccharomyces cerevisiae and rabbit skeletal muscle-demonstrate how successive gene duplications and fusion are reflected in the protein structure and how they allowed the evolution of new functionalities. The basic framework inherited from prokaryotes is conserved, and additional levels of structural and functional complexity have evolved around it. Analysis of protein-ligand complexes has shown how PFK is activated by fructose 2,6-bisphosphate (a powerful PFK effector found only in eukaryotes) and reveals a novel nucleotide binding site. Crystallographic results have been used as the basis for structure-based effector design.

PubMed: 21241708
DOI: 10.1016/j.jmb.2011.01.019

Experimental method

X-RAY DIFFRACTION (3.2 Å)