FabFc-ZAP uses your primary human IgG antibody to target and eliminate cells that recognize your primary antibody. The secondary antibody used in the Fc-specific Fab-ZAP will react only with the Fc portion of the IgG heavy chain. The FabFc-ZAP products can be used in B-cell research with the confidence that cell death is primary antibody-mediated. When the in vitro results confirm the desired specificity, it is recommended that you order a custom conjugation of your antibody to saporin.
FabFc-ZAP human is a chemical conjugate of goat anti-human monovalent antibody and the ribosome-inactivating protein, saporin. It uses your human primary antibody to target and eliminate cells. This secondary conjugate is used to evaluate the potential of a primary antibody to internalize.
FabFc-ZAP human is available individually (Cat. #IT-65) or as a kit (Cat. #KIT-65) which includes FabFc-ZAP human, Saporin (Cat. #PR-01), Fab IgG-SAP (Cat. #IT-67) and reagents for developing a cytotoxicity assay.
Other ZAP Conjugates:
Need another ZAP Conjugate for your target? Check here for other species & targets including in vivo and in vitro options.
keywords: antibody, efficacy, immunotoxin, screening, internalization, saporin, Fab-ZAP, FabFc-ZAP, monovalent Fc region, secondary conjugate, primary antibody, anti-human monovalent antibody
Streptavidin-saporin: Converting biotinylated materials into targeted toxins
Ancheta LR, Shramm PA, Bouajram R, Higgins D, Lappi DA (2023) Streptavidin-saporin: Converting biotinylated materials into targeted toxins. Toxins 15(3):181. doi: 10.3390/toxins15030181 PMID: 36977072
Summary: This manuscript describes the myriad of ways Streptavidin-ZAP is used and how this technology supports the scientific process of ‘Molecular Surgery’ and progress in research and drug development. Insights from publications and research performed using Streptavidin-ZAP and its impact on academia and industry for research and drug development are presented.
Related Products: Streptavidin-ZAP (Cat. #IT-27)
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Saporin as a commercial reagent: its uses and unexpected impacts in the biological sciences-tools from the plant kingdom
Ancheta LR, Shramm PA, Bouajram R, Higgins D, Lappi DA (2022) Saporin as a commercial reagent: its uses and unexpected impacts in the biological sciences-tools from the plant kingdom. Toxins (Basel) 14(3):184. doi: 10.3390/toxins14030184 PMID: 35324681
Summary: Saporin is a ribosome-inactivating protein that can cause inhibition of protein synthesis and causes cell death when delivered inside a cell. Development of commercial Saporin results in a technology termed ‘molecular surgery’, with Saporin as the scalpel. Its low toxicity (it has no efficient method of cell entry) and sturdy structure make Saporin a safe and simple molecule for many purposes. The most popular applications use experimental molecules that deliver Saporin via an add-on targeting molecule. These add-ons come in several forms: peptides, protein ligands, antibodies, even DNA fragments that mimic cell-binding ligands. Cells that do not express the targeted cell surface marker will not be affected. This review will highlight some newer efforts and discuss significant and unexpected impacts on science that molecular surgery has yielded over the last almost four decades. There are remarkable changes in fields such as the Neurosciences with models for Alzheimer’s Disease and epilepsy, and game-changing effects in the study of pain and itch. Many other uses are also discussed to record the wide-reaching impact of Saporin in research and drug development.
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