Recombinant CTLA-4 Extracellular Domain ＆ Fc fragment (human IgG1 isotype) Protein (YR0046)

Basic Information

Clone	Belatacept Biosimilar
Endotoxin	<1EU/mg (<0.001EU/μg)Determined by LAL gel clotting assay
Sterility	0.2 μm filtration
Aggregation	<5% Determined by SECP
Purity	>95% Determined by SDS-PAGE

Product Information

Production	Purified from cell culture supernatant in an animal-free facility
Purification	Protein A or G purification
Storage	2 - 8°C for up to 4 weeks and -80°C for long term storage (Avoid repeated freezing and thawing)

Belatacept (trade name Nulojix, Bristol-Myers-Squibb), a fusion protein of a Fc fragment (human IgG1 isotype) and the extracellular domain of CTLA-4, can be used to extend graft survival while limiting the toxicity generated by standard immune suppressing regimens, such as calcineurin inhibitors. Belatacept differs from abatacept (trade name Orencia) by only 2 amino acids.The CTLA-4 protein is important for T-cell costimulation and selectively blocks the process of T-cell activation.