| 説明 |
CTLA-4 Protein, Human, Recombinant (GST) is expressed in HEK293 mammalian cells with C-GST tag. The predicted molecular weight is 40-55 KDa and the accession number is P16410. |
| Species |
Human
|
| Expression Host |
HEK293 Cells
|
| Tag |
C-GST
|
| Accession Number |
P16410
|
| 別名 |
Cytotoxic T-lymphocyte protein 4, Cytotoxic T-lymphocyte-associated antigen 4, CTLA-4, CD152, CTLA4
|
| Amino Acid |
Lys36-Asp161
|
| Construction |
Lys36-Asp161
|
| Protein Purity |
Greater than 95% as determined by reducing SDS-PAGE. (QC verified)
|
| 分子量 |
40-55 KDa (reducing condition)
|
| Endotoxin |
< 0.1 ng/µg (1 EU/µg) as determined by LAL test.
|
| Formulation |
Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4.
|
| Reconstitution |
Reconstitute the lyophilized protein in distilled water. The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing.
|
| Stability & Storage |
Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted protein solutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
|
| Shipping |
In general, Lyophilized powders are shipping with blue ice. Solutions are shipping with dry ice.
|
| Research Background |
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.
|
Calculator
Reconstitution Calculator
Recombinant Proteins Dilute Calculator
Specific Activity Calculator
bottom
