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Search results for: Epitope Mapping of Antipig Podoplanin Monoclonal Antibody PMab-213.

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#31663836   2019/10/30 To Up

The Epitope of PMab-210 Is Located in Platelet Aggregation-Stimulating Domain-3 of Pig Podoplanin.

Podoplanin (PDPN)/T1alpha/Aggrus, a small mucin-type transmembrane glycoprotein, has been shown to be expressed on lymphatic endothelial cells and epithelial cells of many organs. PDPN is also upregulated in many cancers, and is involved in cancer metastasis and malignant progression. Human PDPN possesses three platelet aggregation-stimulating (PLAG) domains and the PLAG-like domain, which bind to C-type lectin-like receptor-2 (CLEC-2). Previously, we reported a novel antipig PDPN (pPDPN) monoclonal antibody (PMab-210) using Cell-Based Immunization and Screening (CBIS) method. PMab-210 specifically detected pPDPN-overexpressed Chinese hamster ovary (CHO)-K1 cells by flow cytometry and Western blot analysis. Immunohistochemical analyses demonstrated that PMab-210 stained pulmonary type I alveolar cells strongly and renal corpuscles weakly in pig or microminipig. However, the specific binding epitope of PMab-210 for pPDPN could not be determined by enzyme-linked immunosorbent assay using a series of pPDPN peptides. In this study, deletion mutants or point mutants of pPDPN were produced for analyzing the PMab-210 epitope using flow cytometry. The analysis of deletion mutants showed that N-terminus of PMab-210 epitope exists between 45th amino acid (aa) and 50th aa of pPDPN. In addition, the analysis of point mutants demonstrated that the critical epitope of PMab-210 could include Glu47, Asp48, Tyr49, Thr50, and Val51 of pPDPN, indicating that PMab-210 epitope is located in PLAG3 domain of pPDPN.
Mika K Kaneko, Yusuke Sayama, Masato Sano, Yukinari Kato

1363 related Products with: The Epitope of PMab-210 Is Located in Platelet Aggregation-Stimulating Domain-3 of Pig Podoplanin.

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#31464569   2019/08/29 To Up

Epitope Mapping of Antipig Podoplanin Monoclonal Antibody PMab-213.

Podoplanin (PDPN), a type I transmembrane sialoglycoprotein, is expressed on lymphatic endothelial cells, podocytes of the kidneys, and type I alveolar cells of the lungs. PDPN, a platelet aggregation-inducing factor, comprises three platelet aggregation-stimulating (PLAG) domains (PLAG1, PLAG2, and PLAG3) in the N-terminus and PLAG-like domains in the middle of the PDPN protein. We have previously reported a mouse antipig PDPN (pPDPN) monoclonal antibody (mAb) clone, PMab-213, which was developed using the Cell-Based Immunization and Screening (CBIS) method. PMab-213 is very useful in flow cytometry, Western blotting, and immunohistochemical analyses; however, the binding epitope of PMab-213, which was developed by CBIS method, remains to be elucidated. Therefore, this study aimed to investigate the epitope of PMab-213 using enzyme-linked immunosorbent assay, flow cytometry, and immunohistochemical analyses. The results revealed that the critical epitopes of PMab-213 are Pro53, Arg54, Arg56, and Tyr60 of pPDPN.
Shinji Yamada, Shunsuke Itai, Yoshikazu Furusawa, Mika K Kaneko, Yukinari Kato

2135 related Products with: Epitope Mapping of Antipig Podoplanin Monoclonal Antibody PMab-213.

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