Tunisian group, Faculty of Sciences-Bizerte
University of 7-November at Carthage
Faculty of Sciences, Bizerte
Dep. Biology
Laboratory of Biochemistry and Molecular Biology
Zarzouna, 7021 (Tunisia)
Tel: 216 72 590 613
Fax: 216 72 590 566
Principal investigator
Landoulsi Ahmed, prof.
E-mail: Ahmed_landoulsi@yahoo.fr
Research team
Chatti Abdelwaheb, chattiabdel@yahoo.fr
Daghfous Douraid
El may Alya, PhD
Kthiri Fatoum
Aloui Amine
Snoussi sarra
Fields of interest
Effect of DNA methylation on the virulence of Salmonella typhimurium
Lipid profile changes of seqA and/or dam mutants of E.coli
Effect of electromagnetic field on Salmonella.
Key publications
1. Chatti A., Daghfous D. and Landoulsi A. Effect of seqA mutation on the virulence of Salmonella typhimurium. Revision on Journal of infection
2. Chatti A., Daghfous D. and Landoulsi A. Virulence and fitness of Salmonella typhimurium dam mutant recoverd from mice- target organs. Revision on Journal of Biosciences
3. Daghfous D, Chatti A, Marzouk B, Landoulsi A. Phospholipid changes in seqA and dam mutants of Escherichia coli.C R Biol. 2006 Apr; 329(4):271-6.
4. Chatti A., Daghfous D. and Landoulsi A. Contribution à la caractérisation fonctionnelle et moléculaire d'un plasmide de Salmonella hadar. Revue de la Faculté des Sciences de Bizerte juillet 2004 ; 3 :67-71
5. Abdelmelek H, Ben Hamouda Alya elmay, Ben Salem M, Pequignot JM, Sakly M. Electrical conduction through nerve and DNA. Chin J Physiol. 2003 Sep 30;46(3):137-41.
6. Landoulsi A, Kohiyama M. DnaA protein dependent denaturation of negative supercoiled oriC DNA minicircles. Biochimie. 2001 Jan; 83(1):33-9.
7. Taghbalout A, Landoulsi A, Kern R, Yamazoe M, Hiraga S, Holland B, Kohiyama M, Malki A. Competition between the replication initiator DnaA and the sequestration factor SeqA for binding to the hemimethylated chromosomal origin of E. coli in vitro.Genes Cells. 2000 Nov; 5(11):873-884.
8. Landoulsi A, Kohiyama M. Initiation of DNA replication in delta cya mutants of Escherichia coli K12.Biochimie. 1999 Aug-Sep; 81(8-9):827-34.
9. Herrick J, Kern R, Guha S, Landoulsi A, Fayet O, Malki A, Kohiyama M. Parental strand recognition of the DNA replication origin by the outer membrane in Escherichia coli.
EMBO J. 1994 Oct 3; 13(19):4695-703.
10. Lucotte G, Landoulsi A, Berriche S, David F, Babron MC. Manic depressive illness is linked to factor IX in a French pedigree. Ann Genet. 1992; 35(2):93-5.
11. Landoulsi A, Malki A, Kern R, Kohiyama M, Hughes P. The E. coli cell surface specifically prevents the initiation of DNA replication at oriC on hemimethylated DNA templates. Cell. 1990 Nov 30; 63(5):1053-60.
12. Hughes P, Landoulsi A, Kern R, Kohiyama M. Dam methylated and hemimethylated oriC plasmids are replicated symmetrically; a novel and general test of replication symmetry. Mol Gen Genet. 1989 Jun; 217(2-3):278-80.
13. Landoulsi A, Hughes P, Kern R, Kohiyama M. dam methylation and the initiation of DNA replication on oriC plasmids. Mol Gen Genet. 1989 Apr; 216(2-3):217-23.
14. Hughes P, Landoulsi A, Kohiyama M. A novel role for cAMP in the control of the activity of the E. coli chromosome replication initiator protein, DnaA.Cell. 1988 Oct 21; 55(2):343-50.
15. Landoulsi A, de Blois MC, Guerin P, Rethore MO, Lejeune J, Lucotte G. [Recombination between the fragile site Xq27 and the gene for coagulation factor IX] Ann
Genet. 1985; 28(4):201-5.