1.Alternative Name:TP44;CD; CD152 antigen; CD152; CD152IDDM12; CD28; celiac disease 3; CELIAC3; CTLA4; CTLA-4; cytotoxic T-lymphocyte antigen 4; cytotoxic T-lymphocyte protein 4; Cytotoxic T-lymphocyte-associated antigen 4; cytotoxic T-lymphocyte-associated protein 4; cytotoxic T-lymphocyte-associated serine esterase-4; GRD4; GSE; ICOS; ligand and transmembrane spliced cytotoxic T lymphocyte associated antigen 4
2.Target:CD28
3.Source:Human/Cynomolgus CD28 was expressed from HEK293 with poly His at the C-terminal
4.Sequence:Asn19-Pro152
5.Protein structure:P10747Avitag/His
6.Molecular Characterization:The protein has a calculated MW of 18kDa.The reducing (R) heterodimer protein migrates as 40-70 kDa due to glycosylation
7.Purity:SDS-PAGE>95%，SEC>95%
8.Reconstitution:sterile H2O
9.Endotoxin:<1EU/mg
10.Formulation:Lyophilized from 0.22 μm filtered solution in PBS, pH7.4.
Note:For research use only .


11.SDS-PAGE

Determined by SDS-PAGE, the purity of the protein is greater than 90%.

12.SPR

Anti-Human CD28 [TGN1412 Biosimilar]（Cat.No.B502901）captured on Protein A chip , can bind Recombinant Human / Cynomolgus CD28/His Avi Protein（Cat.No.B21996502B） with a KD constant of 7.35E-09M, determined in a SPR assay .