6kmf

Structural highlights

Function

FIMA1_PORG3 Structural subunit of the major fimbriae. These long, filamentous pili are attached to the cell surface; they mediate biofilm formation, adhesion onto host cells and onto other bacteria that are part of the oral microbiome (PubMed:9786913, PubMed:12593606, PubMed:15165251, PubMed:17675496, PubMed:17526848, PubMed:20530728, PubMed:27062925). They play an important role in the invasion of periodontal tissues (PubMed:12593606). Fimbriae and their constituents are major virulence factors. FimA proteins from different strains have highly divergent sequences, and this has been used for classification (PubMed:23809984). The sequence-based classification correlates with pathogenicity (PubMed:17675496).^{[1] [2] [3] [4] [5] [6] [7] [8]}

See Also

• Pilin 3D structures

References

1. ↑ Umemoto T, Hamada N. Characterization of biologically active cell surface components of a periodontal pathogen. The roles of major and minor fimbriae of Porphyromonas gingivalis. J Periodontol. 2003 Jan;74(1):119-22. doi: 10.1902/jop.2003.74.1.119. PMID:12593606 doi:http://dx.doi.org/10.1902/jop.2003.74.1.119
2. ↑ Shoji M, Naito M, Yukitake H, Sato K, Sakai E, Ohara N, Nakayama K. The major structural components of two cell surface filaments of Porphyromonas gingivalis are matured through lipoprotein precursors. Mol Microbiol. 2004 Jun;52(5):1513-25. doi: 10.1111/j.1365-2958.2004.04105.x. PMID:15165251 doi:http://dx.doi.org/10.1111/j.1365-2958.2004.04105.x
3. ↑ Nishiyama SI, Murakami Y, Nagata H, Shizukuishi S, Kawagishi I, Yoshimura F. Involvement of minor components associated with the FimA fimbriae of Porphyromonas gingivalis in adhesive functions. Microbiology. 2007 Jun;153(Pt 6):1916-1925. doi: 10.1099/mic.0.2006/005561-0. PMID:17526848 doi:http://dx.doi.org/10.1099/mic.0.2006/005561-0
4. ↑ Wang M, Shakhatreh MA, James D, Liang S, Nishiyama S, Yoshimura F, Demuth DR, Hajishengallis G. Fimbrial proteins of porphyromonas gingivalis mediate in vivo virulence and exploit TLR2 and complement receptor 3 to persist in macrophages. J Immunol. 2007 Aug 15;179(4):2349-58. doi: 10.4049/jimmunol.179.4.2349. PMID:17675496 doi:http://dx.doi.org/10.4049/jimmunol.179.4.2349
5. ↑ Nagano K, Hasegawa Y, Murakami Y, Nishiyama S, Yoshimura F. FimB regulates FimA fimbriation in Porphyromonas gingivalis. J Dent Res. 2010 Sep;89(9):903-8. doi: 10.1177/0022034510370089. Epub 2010 Jun 8. PMID:20530728 doi:http://dx.doi.org/10.1177/0022034510370089
6. ↑ Nagano K, Abiko Y, Yoshida Y, Yoshimura F. Genetic and antigenic analyses of Porphyromonas gingivalis FimA fimbriae. Mol Oral Microbiol. 2013 Oct;28(5):392-403. doi: 10.1111/omi.12032. Epub 2013 Jul, 1. PMID:23809984 doi:http://dx.doi.org/10.1111/omi.12032
7. ↑ Xu Q, Shoji M, Shibata S, Naito M, Sato K, Elsliger MA, Grant JC, Axelrod HL, Chiu HJ, Farr CL, Jaroszewski L, Knuth MW, Deacon AM, Godzik A, Lesley SA, Curtis MA, Nakayama K, Wilson IA. A Distinct Type of Pilus from the Human Microbiome. Cell. 2016 Apr 21;165(3):690-703. doi: 10.1016/j.cell.2016.03.016. Epub 2016 Apr , 7. PMID:27062925 doi:http://dx.doi.org/10.1016/j.cell.2016.03.016
8. ↑ Kadowaki T, Nakayama K, Yoshimura F, Okamoto K, Abe N, Yamamoto K. Arg-gingipain acts as a major processing enzyme for various cell surface proteins in Porphyromonas gingivalis. J Biol Chem. 1998 Oct 30;273(44):29072-6. doi: 10.1074/jbc.273.44.29072. PMID:9786913 doi:http://dx.doi.org/10.1074/jbc.273.44.29072