CTLA4/HEK293

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RQP74046
I. Background
CTLA4 is a member of the immunoglobulin superfamily. It is expressed by activated T cells and transmits an inhibitory signal to T cells. CTLA4 is homologous to the T-cell co-stimulatory protein, CD28, and both molecules bind to CD80 (B7-1) and CD86 (B7-2) on antigen-presenting cells. CTLA-4 binds CD80 and CD86 with greater affinity and avidity than CD28 thus enabling it to outcompete CD28 for its ligands and act as an “off” switch when bound to CD80 or CD86. Not surprisingly, CTLA-4 is an important drug target for the regulation of the host ’s  response to cancer.

II. Description
Recombinant HEK293 stably expressing human CTLA4 (Cytotoxic T-Lymphocyte Associated Protein; CD152), GenBank Accession #NM_005214.

III. Introduction
Host Cell: HEK293
Expressed gene:CTLA4
Stability: 32 passages (in-house test, that not means the cell line will be instable beyond the passages we tested.)
Synonym(s): Cytotoxic T-lymphocyte-associated protein 4, CD152
Freeze Medium: 90% FBS+10% DMSO
Culture Medium:

DMEM+10%FBS+100ug/ml hygromycin

Mycoplasma Testing: Negative
Storage:Liquid nitrogen.
Application(s):Binding Assay,FACS

IV. Description of Host Cell Line
Organism:Homo sapiens,human
Tissue: Embryonic kidney
Disease: Normal
Morphology: Epitheloid cell
Growth Properties: Adherent

Ⅴ. Representative Data
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Figure 1.Recombinant HEK293 stably expressing human CTLA4(Cytotoxic T-Lymphocyte Associated Protein; CD152), GenBank Accession #NM_005214.