Catabolite control protein: Difference between revisions
Jump to navigation
Jump to search
Michal Harel (talk | contribs) No edit summary |
Michal Harel (talk | contribs) No edit summary |
||
| Line 3: | Line 3: | ||
'''Catabolite control protein''' (CcpA) or '''glucose-resistant amylase regulator''' is a regulator of carbon metabolism in gram-positive bacteria. When high concentrations of glucose-6 phosphate or fructose-1,6-diphosphate are present in the cell, they phosphorylate proteins HPr or Crh which interact with CcpA. The latter binds to DNA operator to modulate transcription.<ref>PMID:16321938</ref> | '''Catabolite control protein''' (CcpA) or '''glucose-resistant amylase regulator''' is a regulator of carbon metabolism in gram-positive bacteria. When high concentrations of glucose-6 phosphate or fructose-1,6-diphosphate are present in the cell, they phosphorylate proteins HPr or Crh which interact with CcpA. The latter binds to DNA operator to modulate transcription.<ref>PMID:16321938</ref> | ||
*'''CcpC''' Regulates the transcription of genes belonging to th TCA cycle<ref>PMID:1634645869</ref> . | |||
== Structural highlights == | == Structural highlights == | ||
Revision as of 11:59, 15 January 2025
FunctionCatabolite control protein (CcpA) or glucose-resistant amylase regulator is a regulator of carbon metabolism in gram-positive bacteria. When high concentrations of glucose-6 phosphate or fructose-1,6-diphosphate are present in the cell, they phosphorylate proteins HPr or Crh which interact with CcpA. The latter binds to DNA operator to modulate transcription.[1]
Structural highlightsCcpA phosphorylation activity is carried out by a (PDB entry 2fep).[3] [4] 3D structures of catabolite control proteinCatabolite control protein 3D structures
|
| ||||||||||
ReferencesReferences
- ↑ Iyer R, Baliga NS, Camilli A. Catabolite control protein A (CcpA) contributes to virulence and regulation of sugar metabolism in Streptococcus pneumoniae. J Bacteriol. 2005 Dec;187(24):8340-9. PMID:16321938 doi:http://dx.doi.org/10.1128/JB.187.24.8340-8349.2005
- ↑ . PMID:1634645869
- ↑ Deutscher J, Reizer J, Fischer C, Galinier A, Saier MH Jr, Steinmetz M. Loss of protein kinase-catalyzed phosphorylation of HPr, a phosphocarrier protein of the phosphotransferase system, by mutation of the ptsH gene confers catabolite repression resistance to several catabolic genes of Bacillus subtilis. J Bacteriol. 1994 Jun;176(11):3336-44. PMID:8195089
- ↑ Fujita Y, Miwa Y, Galinier A, Deutscher J. Specific recognition of the Bacillus subtilis gnt cis-acting catabolite-responsive element by a protein complex formed between CcpA and seryl-phosphorylated HPr. Mol Microbiol. 1995 Sep;17(5):953-60. PMID:8596444