Human B7-H3 / CD276 Protein (His tag) – PKSH031218

Recombinant Human B7-H3 / CD276 Protein (His tag)

B7-H3 is a member of the B7 family of immune regulatory ligands that is thought to attenuate peripheral immune responses through co-inhibition. It plays an important role in adaptive immune responses, and was shown to either promote or inhibit T-cell responses in various experimental systems. B7-H3 may play an important role in muscle-immune interactions, providing further evidence of the active role of muscle cells in local immunoregulatory processes. B7-H3 is a novel protein structurally related to the B7 family of ligands by the presence of a single set of immunoglobulin-V-like and immunoglobulin-C-like (VC) domains. Previous studies have correlated its overexpression with poor prognosis and decreased tumor-infiltrating lymphocytes in various carcinomas including uterine endometrioid carcinomas, and mounting evidence supports an immuno-inhibitory role in ovarian cancer prognosis. Recently, B7-H3 expression has been reported in several human cancers indicating an additional function of B7-H3 as a regulator of antitumor immunity.

Synonym(s) : CD276 , PSEC0249 , 4Ig-B7-H3 , B7-H3 , B7H3

Species(s) : Human

Protein Expression Host : Human Cells

Protein Construction : A DNA sequence encoding the human CD276 (Q5ZPR3-1) extracellular domain (Met 1-Thr 461) was expressed, with a polyhistidine tag at the C-terminus.

Predicted N-terminal amino acid : Leu 29

Molecular weight/mass : The recombinant human CD276 consists of 444 amino acids and predictes a molecular mass of 48 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of rhCD276 is approximately 73 kDa due to glycosylation.

Protein Construction : A DNA sequence encoding the human CD276 (Q5ZPR3-1) extracellular domain (Met 1-Thr 461) was expressed, with a polyhistidine tag at the C-terminus.

Formulation : Lyophilized from sterile PBS, pH 7.4

Purity : > 98 % as determined by SDS-PAGE

Endotoxin level : < 1.0 EU per μg of the protein as determined by the LAL method

Stability : Samples are stable for up to twelve months from date of receipt at -70°C

Shipping conditions : In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.

Reconstitution : Please refer to the printed manual for detailed information.

Manual & Datasheet