Warning: The NCBI web site requires JavaScript to function. more...
An official website of the United States government
The .gov means it's official. Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.
The site is secure. The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.
DNA_binding protein, TFX, C-term
This is the C-terminal region of TFX-like DNA-binding proteins. (from Pfam)
sigma factor-like helix-turn-helix DNA-binding protein
Region 4 of sigma-70 like sigma-factors are involved in binding to the -35 promoter element via a helix-turn-helix motif [1]. Due to the way Pfam works, the threshold has been set artificially high to prevent overlaps with other helix-turn-helix families. Therefore there are many false negatives. [1]. 11931761. Structure of the bacterial RNA polymerase promoter specificity. sigma subunit.. Campbell EA, Muzzin O, Chlenov M, Sun JL, Olson CA, Weinman O,. Trester-Zedlitz ML, Darst SA;. Mol Cell 2002;9:527-539. (from Pfam)
Tfx family DNA-binding protein
PSI-BLAST starting with one member of this family converges with significant hits only to other members of the family, which is restricted to the Archaea. Homology is strongest in the helix-turn-helix-containing N-terminal region. Tfx from Methanobacterium thermoautotrophicum is associated with the operon for molybdenum formyl-methanofuran dehydrogenase and binds a DNA sequence near its promoter.
Filter your results:
Your browsing activity is empty.
Activity recording is turned off.
Turn recording back on