Sulfo-SANPAH crosslinker (N-Sulfosuccinimidyl-6-[4'-azido-2'-nitrophenylamino] hexanoate) is a water soluble, heterobifunctional protein crosslinker with a spacer arm length of 18.2 angstroms. The Sulfo-SANPAH crosslinking reagent contains an NHS ester that reacts with primary amines and a nitrophenylazide group that is photoreactive at 320-350 nm toward amino groups. Sulfo-SANPAH crosslinker is immediately water soluble without the use of organic solvents. However, the Sulfo-NHS ester of Sulfo-SANPAH is susceptible to hydrolysis. If aliquoted into an aqueous solution and stored in it, then the Sulfo-SANPAH will degrade. It is recommended to only aliquot the amount of material immediately needed for an experiment and to store the rest as a dry powder under desiccated, inert gas. Commonly, Sulfo-SANPAH enhances Western blot experiments; likewise Sulfo-SANPAH activated polyacrylamide (PAA) gel crosslinked to fibronectin or collagen extracellular matrix (ECM) is used in tissue culture studies.
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Molecular Weight: 492.40
Spacer Length: 18.2 Å
CAS Number: 102568-43-4
Alternative Names: 1-[6-[(4-azido-2-nitro-phenyl)amino]hexanoyloxy]-2,5-dioxo-pyrrolidine-3-sulfonic acid; Sulfosuccinimidyl 6-((4-azido-2-nitrophenyl)amino)hexanoate
References:
Lee, H. H., Lee, H. C., Chou, C. C., Hur, S. S., Osterday, K., del Álamo, J. C., ... & Chien, S. (2013). Shp2 plays a crucial role in cell structural orientation and force polarity in response to matrix rigidity. Proceedings of the National Academy of Sciences, 110(8), 2840-2845.
Vonwil, D., Trüssel, A., Haupt, O., Gobaa, S., Barbero, A., Shastri, V. P., & Martin, I. (2012). Substrate elasticity modulates TGF beta stimulated re-differentiation of expanded human articular chondrocytes. Drug Delivery and Translational Research, 2(5), 351-362.
Al-Haque, S., Miklas, J. W., Feric, N., Chiu, L. L., Chen, W. L. K., Simmons, C. A., & Radisic, M. (2012). Hydrogel Substrate Stiffness and Topography Interact to Induce Contact Guidance in Cardiac Fibroblasts. Macromolecular bioscience, 12(10), 1342-1353.
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