ENTRAF

An Encyclopedia of well-annotated DNA-binding TRanscription factors in Bacteria and Archaea.

Transcription factor information

General information

ENTRAF ID ENTRAF0402
Gene name rfaH
Uniprot ID RFAH_ECOL5
Organism Escherichia coli O6:K15:H31 (strain 536 / UPEC)
Aminoacid sequence MQSWYLLYCKRGQLQRAQEHLERQAVNCLAPMITLEKIVRGKRTAVSEPLFPNYLFVEFDPEVIHTTTINATRGVSHFVRFGASPAIVPSAVIHQLSVYKPKDIVDPSTPYPGDKVIITEGAFEGFQAIFTEPDGEARSMLLLNLINKEIKHSVKNTEFRKL
FASTA file Download
Length 162

Functional information

Function Uniprot Enhances distal genes transcription elongation in a specialized subset of operons that encode extracytoplasmic components. RfaH is recruited into a multi-component RNA polymerase complex by the ops element, which is a short conserved DNA sequence located downstream of the main promoter of these operons. Once bound, RfaH suppresses pausing and inhibits Rho-dependent and intrinsic termination at a subset of sites. Termination signals are bypassed, which allows complete synthesis of long RNA chains (By similarity). Also negatively controls expression and surface presentation of AG43 and possibly another AG43-independent factor that mediates cell-cell interactions and biofilm formation,.
Role Repressor
Protein family RfaH family
Structure (PDB ID) -

References

Pubmed ID 1 12007406
Pubmed ID 2 16879640
Pubmed ID 3 16452414

Experimental evidences

BPP