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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.
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In Stock | Mechanism of 3′-O-N3-dUTP: Why Reversible Terminator Nucleotides are the Core Substrates for SBS Sequencing?
2026/8/21 11:29:13The core of reversible terminator sequencing lies in whether the 3′-blocking group can balance both "termination" and "resumption." Featuring a compact azidomethyl structure, 3′-O-Azidomethyl achieves an optimal balance between highly efficient polymerase recognition and mild, scarless deprotection, making it a classic choice for commercial reversible terminator sequencing systems. GeneSeqTools offers a 3′-O-N3-dNTP series covering all five bases, providing a reliable domestic supply of core raw materials for high-throughput sequencing.
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In Stock | From "Total RNA" to "Nascent RNA": Insights into 5-Ethynyl-UTP Labeling Technology
2026/8/18 16:16:595-Ethynyl-UTP is a crucial chemically modified nucleotide for nascent RNA metabolic labeling studies. As a UTP analog, it can be incorporated into RNA synthesis and undergo click chemistry with azide groups to enable the detection or affinity enrichment of nascent RNA. Starting from its product features, working principles, and application scenarios, this article introduces its applications in RNA dynamics research and EU-seq. GeneSeqTools provides this product in stock to support your research.
