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Hot Product | Principles and Applications of S-2366 (Pyr-Pro-Arg-pNA) for Coagulation Factor FXIa Activity Detection
2026/9/15 15:23:46S-2366 (Pyr-Pro-Arg-pNA·HCl, CAS: 127428-47-1) is a classic pNA chromogenic substrate, primarily used for enzymatic activity research related to coagulation factor XIa (FXIa). Upon hydrolysis by the target enzyme, pNA is released, and enzyme activity can be analyzed through absorbance changes at 405 nm. S-2366 is also applicable to research on activated protein C (APC) and plasma kallikrein, making it suitable for coagulation mechanism studies, FXIa inhibitor screening, and related method development. GeneSeqTools offers this product in stock.
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In Stock | Magenta-Gal: A Magenta β-D-Galactosidase Chromogenic Substrate for Instant Identification of Positive Clones
2026/9/11 15:22:15Upon hydrolysis by β-D-galactosidase, Magenta-Gal produces a vivid magenta precipitate, offering an alternative chromogenic option distinct from traditional blue indicators for molecular cloning screening and microbial detection. It is suitable for recombinant clone screening, chromogenic culture media development, and enzyme activity analysis. GeneSeqTools offers this product in stock with flexible specifications and customized options available.
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In Stock | Yeast Two-Hybrid Screening Made Easy — X-α-Gal Turns Positive Clones Blue
2026/9/9 11:13:15X-α-Gal is a classic chromogenic substrate for α-D-galactosidase. In the MEL1 yeast two-hybrid system, activation of the reporter gene produces α-D-galactosidase activity. X-α-Gal undergoes enzymatic hydrolysis and color development to form blue colonies, providing a visual signal for blue-white screening and candidate clone identification in yeast two-hybrid assays. It can also be used in the development of α-D-galactosidase-related chromogenic culture media and microbial detection systems. GeneSeqTools offers this product in stock.
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From "Protein Expression" to "Actual Enzymatic Activity" — Detection Solution Using Z-Phe-Arg-4MβNA Fluorescent Substrate
2026/8/28 15:20:47Western blot detects proteins and qPCR reveals expression levels, but they do not necessarily reflect true enzymatic activity. For research on proteases such as Cathepsin B/L, how can researchers advance from "expression levels" to "activity analysis"? Z-Phe-Arg-4MβNA combines the classic Phe-Arg sequence with the 4MβNA signaling system, providing an optimal substrate choice for cathepsin activity detection, inhibitor screening, and related enzymology research. GeneSeqTools offers this product in stock to support your studies.
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In Stock | Principles and Applications of X-GlcNAc Chromogenic Substrate: A Classic NAGase Chromogenic Substrate
2026/8/27 11:27:53How to quickly determine whether microorganisms possess N-acetyl-β-D-glucosaminidase (NAGase) activity? X-GlcNAc (5-Bromo-4-chloro-3-indolyl-N-acetyl-β-D-glucosaminide, CAS: 4264-82-8) is a classic NAGase chromogenic substrate. It is widely used in Candida albicans chromogenic culture media, microbial identification, and enzymology research. GeneSeqTools offers this product in stock and supports customized packaging.
