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Human TROP2 / TACSTD2 Protein (His & Fc Tag)

EGP-1,EGP1,GA733-1,GA7331,GP50,M1S1,TACD2,TROP-2,TROP2

Catalog Number P10428-H03H
Organism Species Human
Host Human Cells
Synonyms EGP-1,EGP1,GA733-1,GA7331,GP50,M1S1,TACD2,TROP-2,TROP2
Molecular Weight The recombinant human TROP2/Fc is a disulfide-linked homodimer. The reduced monomer consists of 495 amino acids and has a predicted molecular mass of 55.7 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of rhTROP2/Fc monomer is approximately 65-75 kDa due to glycosylation.
predicted N His 27
SDS-PAGE
Purity > 98 % as determined by SDS-PAGE
Protein Construction A DNA sequence encoding the extracellular domain (Met 1-Thr 274) of human TROP2 (NP_002344.2) was fused with the C-terminal polyhistidine-tagged Fc region of human IgG1 at the C-terminus.
Bio-activity Measured by the ability of the immobilized protein to support the adhesion of U937 human histiocytic lymphoma cells . When cells are added to TROP2-coated plates (10 μg/ml, 100 μl/well), approximately 90%-100% will adhere specifically .
Research Area Cell Biology |Cell Cycle |Cell division |Other cell division related protein
Formulation Lyophilized from sterile PBS, pH 7.4
1. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
Background TROP-2, also referred to as tumor associated calcium signal transducer 2 (TACSTD2), GA733-1 or M1S1, is a cell surface glycoprotein highly expressed in a wide variety of epithelial cancers. In contrast, there is little or no expression of Trop-2 in adult somatic tissue. Because it is a cell surface protein that is selectively expressed in tumor cells, Trop-2 is a potential therapeutic target. The cytoplasmic tail of Trop-2 possesses potential serine and tyrosine phosphorylation sites and a phosphatidyl-inositol binding consensus sequence. Trop-2 transduces an intracellular calcium signal, are consistent with the hypothesis that it acts as a cell surface receptor and support a search for a physiological ligand. TROP2 encoding by an intronless gene was originally defined by the monoclonal antibody GA733, and is a member of a family of at least two type I membrane proteins. The other known member is GA733-2, also called EpCAM and TROP1. It has been suggested by studies that the GA733-1 gene was formed by the retroposition of the GA733-2 gene via an mRNA intermediate.
Reference
  • Ripani E, et al. (1998) Human Trop-2 is a tumor-associated calcium signal transducer. Int J Cancer. 76(5): 671-6.
  • Wang J, et al. (2008) Identification of Trop-2 as an oncogene and an attractive therapeutic target in colon cancers. Mol Cancer Ther. 7(2): 280-5.