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Recombinant Human CTLA4, Fc Chimera

Cat.No. : CTLA4-1913H
Product Overview : Recombinant Human CTLA-4 produced inE.Coliis a homodimeric, non-glycosylated polypeptide chain containing a total molecular mass of 80 kDa. Each subunit (40kDa) is fused to a polypeptide linker to the Fc portion of Human IgG1. rHuCTLA-4 is purified by proprietary chromatographic techniques.
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Cat. No. : CTLA4-1913H
Description : CTLA-4 is expressed in low copy number by T-cells only after activation, but it binds CD28-ligand with approximately 20-fold higher affinity than CD28. A soluble form of the extracellular domain of CTLA-4 has been shown to bind CD28-ligand with high avidity and to suppress T-cell-dependent antibody responses in vivo. Large doses of this soluble protein also suppress responses to a second immunization.
Source : E.Coli.
Amino Acid Sequence : The sequence of the first five N-terminal amino acids was determined and was found to be Lys-Ala-Met-His-Val.
Form : Purified.
Purity : Greater than 95.0% as determined by: (a) Analysis by RP-HPLC. (b) Anion-exchange FPLC.
Dimers & Aggregates : <1% as determined by silver stained SDS-PAGE gel analysis.
Endotoxin : < 0.1 ng/µg (IEU/µg) of rHuCTLA-4.
Protein Content : Protein quantitation was carried out by two independent methods: 1) UV spectroscopy at 280 nm. 2) Analysis by RP-HPLC, using a standard solution of CTLA-4 as a Reference Standard.
Application : 1) Molecular standard (Western, ELISA) in studying secreted BMP-4. 2) Preparing antibodies for BMP-4 monomer. 3) Molecule standard in detecting secreted BMP-4 in reduced SDS-PAGE.
Biological Activity : rHuCTLA-4 is fully biologically active when compared to standards.
Storage : -20°C, avoid freezing and thawing cycles after reconstitution.
Gene Name : CTLA4 cytotoxic T-lymphocyte-associated protein 4 [ Homo sapiens ]
Synonyms : CTLA4; cytotoxic T-lymphocyte- associated protein 4; CD; CD28; CD152; CD152; CELIAC3; CTLA-4; celiac disease 3; Cytotoxic T-lymphocyte protein 4; cytotoxic T-lymphocyte antigen 4; cytotoxic T-lymphocyte-associated antigen 4; cytotoxic T-lymphocyte-associated serine esterase-4; ligand and transmembrane spliced cytotoxic T lymphocyte associated antigen 4; ICOS; GSE; IDDM12; IDDM12; CTLA-4; OTTHUMP00000163781
Gene ID : 1493
mRNA Refseq : NM_001037631
Protein Refseq : NP_001032720
MIM : 123890
UniProt ID : P16410
Chromosome Location : 2q33
Pathway : Autoimmune thyroid disease ; Cell adhesion molecules (CAMs); T cell receptor signaling pathway
Function : Protein binding

For Research Use Only. Not intended for any clinical use. No products from Creative BioMart may be resold, modified for resale or used to manufacture commercial products without prior written approval from Creative BioMart.

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Q&As (5)

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Are there ongoing clinical trials exploring CTLA-4 inhibitors in combination with other immunotherapies? 05/16/2020

Yes, several clinical trials are investigating the combination of CTLA-4 inhibitors with PD-1 inhibitors and other immunotherapies to improve the overall effectiveness of cancer treatment.

How does the expression of CTLA-4 vary in different types of immune cells? 10/17/2019

CTLA-4 is expressed on various immune cells, including T cells, regulatory T cells (Tregs), and some B cells, contributing to its diverse immunoregulatory functions.

In what ways can CTLA-4 be utilized in organ transplantation? 01/11/2017

Modulating CTLA-4 may have applications in organ transplantation by suppressing the immune response against transplanted tissues and reducing the risk of rejection.

How does CTLA-4 contribute to the maintenance of immune tolerance? 04/30/2016

CTLA-4 is involved in the suppression of autoreactive T cells, contributing to the prevention of autoimmune responses by maintaining immune tolerance.

How does CTLA-4 blockade differ from PD-1/PD-L1 blockade in cancer immunotherapy? 03/18/2016

While both CTLA-4 and PD-1/PD-L1 inhibitors enhance anti-tumor immune responses, they target different checkpoints in the immune system. CTLA-4 primarily regulates T-cell activation in the early stages, whereas PD-1/PD-L1 acts later in the immune response.

Customer Reviews (3)

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Reviews
04/17/2019

    It has become an indispensable tool in my experiments, consistently meeting my needs and providing valuable insights.

    11/25/2018

      The CTLA4 protein is a top-quality product that is sure to fulfill my experimental requirements.

      01/28/2017

        the ease of use and compatibility of the CTLA4 protein with various techniques further enhances its appeal.

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