Recombinant Human Cytotoxic T-lymphocyte protein 4 (CTLA4), partial (Active)

Product Description

Recombinant Human Cytotoxic T-lymphocyte protein 4 (CTLA4), partial (Active) is available at Gentaur for Next week Delivery.

Gene Name: CTLA4

Alternative Names : Cytotoxic T-lymphocyte protein 4; Cytotoxic T-lymphocyte-associated antigen 4; CTLA-4; CD152; CTLA4

Expression Region : 36-161aa

AA Sequence : KAMHVAQPAVVLASSRGIASFVCEYASPGKATEVRVTVLRQADSQVTEVCAATYMMGNELTFLDDSICTGTSSGNQVNLTIQGLRAMDTGLYICKVELMYPPPYYLGIGNGTQIYVIDPEPCPDSD

Sequence Info : Extracellular Domain

Tag Info : C-terminal 6xHis-tagged

Theoretical MW : 14.3 kDa

Storage Buffer : Lyophilized from a 0.2 ?m filtered 1xPBS, pH 7.4

Endotoxin Level : Less than 1.0 EU/µg as determined by LAL method.-

Biological Activity : The ED50 as determined by its ability to bind Mouse B7-1 in functional ELISA is less than 20 ng/ml.

Storage : Short term: -20°C; Long term: -80°C. Minimize freeze and thaw cycles.

Research Area : Immunology

Restriction : For Research Use Only. Not for use in diagnostic procedures, drug use, or for administration to humans or animals.

Relevance : Cytotoxic Tlymphocyte 4(CTLA-4,CD152), is a type I transmembrane T cell inhibitory molecule that is a member of the Ig superfamily. Human or mouse CTLA4 cDNA encodes 223 amino acids (aa) including a 35 aa signal sequence, a 126 aa extracellular domain (ECD) with one Ig-like V-type domain, a 21 aa transmembrane (TM) sequence, and a 41 aa cytoplasmic sequence.It is widely expressed with highest levels in lymphoid tissues. CD28 and CTLA-4, together with their ligands, B7-1 and B7-2, constitute one of the dominant costimulatory pathways that regulate T and B cell responses. CD28 and CTLA-4 are structurally homologous molecules that are members of the immunoglobulin (Ig) gene superfamily. CTLA4 transmits an inhibitory signal to T cells, whereas CD28 transmits a stimulatory signal. Intracellular CTLA4 is also found in regulatory T Cells and may play an important role in their functions. Tcell activation through the Tcell receptor and CD28 leads to increased expression of CTLA4.

Function : Inhibitory receptor acting as a major negative regulator of T-cell responses. The affinity of CTLA4 for its natural B7 family ligands, CD80 and CD86, is considerably stronger than the affinity of their cognate stimulatory coreceptor CD28.

Involvement in disease : Systemic lupus erythematosus (SLE); Diabetes mellitus, insulin-dependent, 12 (IDDM12); Celiac disease 3 (CELIAC3); Autoimmune lymphoproliferative syndrome 5 (ALPS5)

Subcellular location : Cell membrane, Single-pass type I membrane protein

Protein Families :

Tissue Specificity : Widely expressed with highest levels in lymphoid tissues. Detected in activated T-cells where expression levels are 30- to 50-fold less than CD28, the stimulatory coreceptor, on the cell surface following activation.

Paythway : Tcellreceptorsignalingpathway

Uniprot ID : P16410