Tetracyclin repressor-like, C-terminal domain superfamily
|General category ||Information|
|Detailed category ||Transcription|
Document: Function annotation of SCOP domain superfamilies
|Cross references ||IPR011075 SSF48498 Protein matches|
This entry represents the C-terminal domain found in a number of different TetR transcription regulator proteins. TetR regulates the expression of the membrane-associated tetracycline resistance protein, TetA, which exports the tetracycline antibiotic out of the cell before it can attach to the ribosomes and inhibit protein synthesis . TetR blocks transcription from the genes encoding both TetA and TetR in the absence of antibiotic. The C-terminal domain is multi-helical and is interlocked in the homodimer with the helix-turn-helix (HTH) DNA-binding domain. Other members of the TetR family of transcriptional regulators carry this C-terminal domain. These include:
- QacR from Staphylococcus aureus, a multidrug binding protein that represses transcription of the qacA multidrug transporter gene 
- Ethr, a repressor from Mycobacterium tuberculosis implicated in ethionamide drug resistance 
- CprB, a gamma-butyrolactone autoregulator/receptor from Streptomyces coelicolor that acts as a DNA-binding protein 
- YcdC, a hypothetical transcriptional regulator from Escherichia coli
- YsiA, YfiR, and YxaF, hypothetical transcriptional regulators from Bacillus subtilis
- YbiH, a hypothetical transcriptional regulator from Salmonella typhimurium
PDBeMotif information about ligands, sequence and structure motifs
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Internal database links
Browse genome assignments for this superfamily. The SUPERFAMILY hidden Markov model library has been used to carry
out SCOP domain assignments to all genomes at the superfamily level.
Alignments of sequences to 42 models
in this superfamily are available by clicking on the 'Alignments' icon above. PDB sequences less than 40% identical
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Browse and view proteins in genomes which have
different domain combinations including a Tetracyclin repressor-like, C-terminal domain domain.
Examine the distribution of domain superfamilies, or families, across the major taxonomic kingdoms or genomes within a kingdom. This gives an immediate impression of how superfamilies, or families, are restricted to certain kingdoms of life.
Explore domain occurrence network where nodes represent genomes and edges are domain architectures (shared between genomes) containing the superfamily of interest.
There are 42 hidden Markov models representing the Tetracyclin repressor-like, C-terminal domain superfamily. Information on how the models are built, and plots showing hydrophobicity, match emmission probabilities and insertion/deletion probabilities can be inspected.
Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Functional annotation · Internal database links ]