Magic spot: (p) ppGpp

J Cell Physiol. 2009 Aug;220(2):297-302. doi: 10.1002/jcp.21797.

Abstract

Guanosine 5'-(tri)diphosphate, 3'-diphosphate [(p) ppGpp] is a small nucleic acid that helps bacteria survive in limited environments. Gene chip shows that (p) ppGpp is a global transcription-regulator of genes related to important bacterial metabolic processes. Therefore, more attention should be focused on the molecular mechanisms of (p) ppGpp, as it is the foundation to understanding how bacteria adapt to extreme circumstances through the stringent response.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Adaptation, Physiological
  • Bacteria* / genetics
  • Bacteria* / metabolism
  • Bacterial Proteins / genetics
  • Bacterial Proteins / metabolism*
  • DNA-Directed RNA Polymerases / chemistry
  • DNA-Directed RNA Polymerases / genetics
  • DNA-Directed RNA Polymerases / metabolism
  • Gene Expression Regulation, Bacterial*
  • Guanosine Pentaphosphate / chemistry
  • Guanosine Pentaphosphate / metabolism*
  • Isoenzymes / genetics
  • Isoenzymes / metabolism
  • Ligases / genetics
  • Ligases / metabolism
  • Models, Molecular
  • Molecular Structure
  • Plant Proteins / genetics
  • Plant Proteins / metabolism
  • Protein Conformation
  • Pyrophosphatases / genetics
  • Pyrophosphatases / metabolism

Substances

  • Bacterial Proteins
  • Isoenzymes
  • Plant Proteins
  • Guanosine Pentaphosphate
  • DNA-Directed RNA Polymerases
  • guanosine-3',5'-bis(diphosphate) 3'-pyrophosphatase
  • Pyrophosphatases
  • Ligases
  • guanosine 3',5'-polyphosphate synthetases