Endostatin BioAssay(TM) ELISA Kit, Human

Sandwich ELISA quantitative detection kit for Human Endostatin in cell culture supernates, serum, plasma (heparin, EDTA) and human milk. Endostatin is a naturally-occurring 20kD C-terminal fragment derived from type XVIII collagen. It is reported to serve as an anti-angiogenic agent, similar toangiostatin and thrombospondin. And It is produced by proteolytic cleavage of collagen XVIII, a member of the multiplexin family that is characterized by interruptions in the triple helix creating multiple domains, by proteases such as cathepsins. Using a genomic clone as a probe for fluorescence in situ hybridization, Endostatin was mapped the COL18A1 gene to 21q22.3. By immunoprecipitation analysis using membrane fractions of human mammary epithelial cells, It showed that endostatin specifically bound to cell surface nucleolin with high affinity. Blockage of nucleolin with neutralizing antibody or knockdown of nucleolin by RNA interference countered the antiendothelial activity of endostatin and abrogated its antiangiogenic and antitumor activity in vivo. , Assay Range:, 156pg/ml-10,000pg/ml, Sensitivity: < 10 pg/ml, Crossreactivity: There is no detectable cross-reactivity with other relevant proteins. Uniprot ID: D3DSM5, Entrez Gene ID: 80781, Kit Components: 96-well plate pre-coated with anti-Endostatin, Human, Lyophilized recombinant Endostatin, Human standard, 10ng/tube, 2Ea, USB Cat No Kit Component, 143696 Avidin-Biotin-Peroxidase Complex (ABC), 130ul (1:100 dilution), 143697 Sample diluent buffer, 30ml, 143698 Antibody diluent buffer, 12ml, 143699 ABC diluent buffer, 12ml, 143700 TMB color developing agent, 10ml, 143701 TMB stop solution, 10ml, Storage and Handling: Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles.