Biology:CAT RNA-binding domain

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CAT_RBD
PDB 1l1c EBI.jpg
structure of the lict bacterial antiterminator protein in complex with its rna target
Identifiers
SymbolCAT_RBD
PfamPF03123
InterProIPR004341
SCOP21h99 / SCOPe / SUPFAM

In molecular biology, the CAT RNA-binding domain (Co-AntiTerminator RNA-binding domain) is a protein domain found at the amino terminus of a family of transcriptional antiterminator proteins. This domain forms a dimer in the crystal structure.[1] Transcriptional antiterminators of the BglG/SacY family are regulatory proteins that mediate the induction of sugar metabolizing operons in Gram-positive and Gram-negative bacteria. Upon activation, these proteins bind to specific targets in nascent mRNAs, thereby preventing abortive dissociation of the RNA polymerase from the DNA template.[2]

References

  1. "Crystal structure of a new RNA-binding domain from the antiterminator protein SacY of Bacillus subtilis". EMBO J. 16 (16): 5030–6. August 1997. doi:10.1093/emboj/16.16.5030. PMID 9305644. 
  2. "RNA recognition by transcriptional antiterminators of the BglG/SacY family: functional and structural comparison of the CAT domain from SacY and LicT". J. Mol. Biol. 294 (2): 389–402. November 1999. doi:10.1006/jmbi.1999.3256. PMID 10610766. 
This article incorporates text from the public domain Pfam and InterPro: IPR004341