Abstract: “Abstract- Interleukin-2 (IL-2) is a lymphokine that exerts immunoregulatory effects on a variety of cells such as T cells, activated B cells and Natural Killer (NK) cells. Its biological effects are mediated through specific interactions with cell surface receptors present on target cells. Due to its role in generating normal immune responses, IL 2 is used in the treatment of a variety of tumors and infectious diseases. The downside of IL 2 is that the molecule is rather unstable. The aim of the current research is to generate IL-2 mutant with improved potency.This objective is accomplished by the use of cloning and Site directed Mutagenesis (SDM). For this purpose,first, wild type IL-2 mRNA was isolated from cultured T lymphocytes. This was converted into cDNA with the help of Reverse Transcription-PCR. Future work includes amplification of cDNA fragments and cloning into a phagemid vector pTZ19R. Transformation will be carried out in E.coli RZ1032 and the ssDNA obtained as the end re”

Keywords: lymphokine, Reverse Transcription PCR, phagemid vector,Transformation