| KilA-N | |||||||||
|---|---|---|---|---|---|---|---|---|---|
 mbp1 from saccharomyces cerevisiae | |||||||||
| Identifiers | |||||||||
| Symbol | KilA-N | ||||||||
| Pfam | PF04383 | ||||||||
| InterPro | IPR018004 | ||||||||
| SCOP2 | 1bm8 / SCOPe / SUPFAM | ||||||||
| |||||||||
In molecular biology, the KilA-N domain is a conserved DNA-binding domain found at the N-terminus of the poxvirus D6R/NIR proteins. It is also found in a wide range of proteins of large bacterial and eukaryotic DNA viruses. [1] Putative proteins with homology to the KilA-N domain have also been identified in Maverick transposable elements of the parabasalid protozoa Trichomonas vaginalis . [2] The KilA-N domain has been suggested to be homologous to the fungal DNA-binding APSES domain. In all proteins shown to contain the KilA-N domain, it occurs at the extreme amino terminus accompanied by a wide range of distinct carboxy-terminal domains. These carboxy-terminal modules may be enzymes, such as the nuclease domains, or might mediate additional, specific interactions with nucleic acids or proteins, like the RING or CCCH fingers in the poxviruses. [1] The KilA-N domain is predicted to adopt an alpha-beta fold with four conserved strands and at least two conserved helices. [1] Some proteins known to contain a KilA-N domain are listed below:
- Bacteriophage P1 protein kilA
- Fowlpox virus (FPV) protein FPV236.
- Trichomonas vaginalis G3 Putative uncharacterised protein
- Vaccinia virus hypothetical 21.7 kDa HindIII-C protein