Response regulator

Response regulator receiver domain
The response regulator CheY from E. coli, with the aspartate phosphorylation site highlighted in green. From PDB: 3CHY​.
Identifiers
SymbolResponse_reg
PfamPF00072
Pfam clanCL0304
ECOD2007.1.3
InterProIPR001789
SMARTREC
PROSITEPDOC50110
Available protein structures:
Pfam  structures / ECOD  
PDBRCSB PDB; PDBe; PDBj
PDBsumstructure summary

In molecular biology, a response regulator is a protein that mediates a cell's response to changes in its environment as part of a two-component regulatory system. Response regulators are coupled to specific histidine kinases which serve as sensors of environmental changes. Response regulators and histidine kinases are two of the most common gene families in bacteria, where two-component signaling systems are very common; they also appear much more rarely in the genomes of some archaea, yeasts, filamentous fungi, and plants. Two-component systems are not found in metazoans.[1][2][3][4]

  1. ^ Stock AM, Robinson VL, Goudreau PN (2000). "Two-component signal transduction". Annual Review of Biochemistry. 69: 183–215. doi:10.1146/annurev.biochem.69.1.183. PMID 10966457.
  2. ^ West AH, Stock AM (June 2001). "Histidine kinases and response regulator proteins in two-component signaling systems". Trends in Biochemical Sciences. 26 (6): 369–76. doi:10.1016/s0968-0004(01)01852-7. PMID 11406410.
  3. ^ Galperin MY (June 2005). "A census of membrane-bound and intracellular signal transduction proteins in bacteria: bacterial IQ, extroverts and introverts". BMC Microbiology. 5: 35. doi:10.1186/1471-2180-5-35. PMC 1183210. PMID 15955239.
  4. ^ Capra EJ, Laub MT (2012). "Evolution of two-component signal transduction systems". Annual Review of Microbiology. 66: 325–47. doi:10.1146/annurev-micro-092611-150039. PMC 4097194. PMID 22746333.