B7H3, also known as CD276 antigen, is a member of the B7 family of immune regulatory ligands that is thought to attenuate peripheral immune responses through co-inhibition. It modulates T-cell-mediated immune responses and the development of acute and chronic transplant rejection. This protein plays a positive regulatory role in bone formation and has a dual role in the bone-immune interface. It induces antitumor immunity as it activates both acquired and innate immunity leading to natural killer cell and CD8 T-cell dependent killing of tumor cells. Recombinant protein corresponding to aa29-248 from mouse B7-H3, fused to His-Tag at C-terminal, expressed in Baculovirus. Molecular Weight: ~24.7kD (226aa) Amino Acid Sequence: VEVQVSEDPV VALVDTDATL RCSFSPEPGF SLAQLNLIWQ LTDTKQLVHS FTEGRDQGSA YSNRTALFPD LLVQGNASLR LQRVRVTDEG SYTCFVSIQD FDSAAVSLQV AAPYSKPSMT LEPNKDLRPG NMVTITCSSY QGYPEAEVFW KDGQGVPLTG NVTTSQMANE RGLFDVHSVL RVVLGANGTY SCLVRNPVLQ QDAHGSVTIT GQPLTFPPEA HHHHHH Applications: Suitable for use in SDS-PAGE. Other applications not tested. Recommended Dilution: Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20C. Aliquots are stable for 6 months after receipt at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.