Research Article

Improvement in the Production of L-Lysine by Over-expression of Aspartokinase (ASK) in C. glutamicum ATCC 21799

Hilda Rastegari¹, Mohsen Chiani², Azim Akbarzadeh², Sara Cheraghi³, Zahra Saffari², Mohammad Reza Mehrabi², Ali Farhangi² and Soheil Ghassemi^2*

¹Department of Microbiology, Azad University, Jahrom, ²Department of Pilot Biotechnology, Pasteur Institute of Iran, ³Department of Biochemistry, Payam_E_Noor University, Tehran, Iran

*For correspondence: E-mail: ghassemi_so@yahoo.com  Tel: +98 21 6696 88 56; Fax: + 98 21 6646 51 32 

Received: 30 April 2012                                                                         Revised accepted: 5 December 2012