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Targeted therapy! The Capetin Prize winning "Click Chemistry" can be used like this!Targeted therapy! The Nobel Prize winning "Click Chemistry" can be used like this!2025-02-06
488 Results for "
conformational constraint
" in MedChemExpress (MCE) Product Catalog:
Products (488)
488 Results for "conformational constraint" in MCE Product Catalog:
Research Areas:
5'-ODMT cEt N-Bz A Phosphoramidite (Amidite) is a nucleoside phosphoramidite monomer used to synthesize locked nucleic acid (LNA) analog oligonucleotides. It can be used as a building block of antisense oligonucleotides (ASOs) to target complementary RNA sequences. 5'-ODMT cEt N-Bz A Phosphoramidite (Amidite) locks the furanose ring into an N-type conformation through 2',4'-constrained ethyl (cEt) modification, enhancing hybridization affinity and mismatch discrimination with RNA, while significantly improving the resistance of oligonucleotides to exonuclease digestion. 5'-ODMT cEt N-Bz A Phosphoramidite (Amidite) mediates RNase H-dependent mRNA degradation or inhibits translation by forming a stable hybrid with RNA, thereby achieving gene expression regulation. 5'-ODMT cEt N-Bz A Phosphoramidite (Amidite) is mainly used in the development of antisense drugs, gene function research and oligonucleotide synthesis related to disease treatment .
PI3Kδ-IN-16 is a potent and selective PI3Kδ inhibitor with an IC50 value of 0.9 nM. PI3Kδ-IN-16 has a strong anti-proliferative effect on SU-DHL-6 cells, causing cell cycle arrest and inducing apoptosis. PI3Kδ-IN-16 tightly bins to PI3Kδ protein with a planar-shaped conformation. The kinase activity of PI3Kδ-IN-16 which is ~378-fold over PI3Kα, 412-fold over PI3Kβ, and 10-fold over PI3Kγ. PI3Kδ-IN-16 can be used for the study of hematologic malignancies .
Cat. No.: HY-164899
CAS No.: 2765091-45-8
Synonyms: 2-aminopyridine-3-carboxylic acid imidazolide
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2A3 (2-aminopyridine-3-carboxylic acid imidazolide) is a covalent probe reagent for Selective 2'-Hydroxyl Acylation analyzed by Primer Extension (SHAPE) that targets the RNA ribose 2'-OH group. 2A3 efficiently permeates the biological membranes of Gram-negative bacteria, Gram-positive bacteria, and mammalian cells. 2A3 exhibits no base bias and specifically labels conformationally flexible, unpaired regions within RNA.
2A3 forms covalent adducts by acylating the 2'-OH groups of flexible RNA residues. When combined with SHAPE-MaP (mutational profiling) sequencing technology, these modification sites are converted into detectable mutational signals, thereby accurately reflecting local RNA backbone flexibility and base-pairing status. 2A3 is primarily utilized in molecular biology and transcriptomics research, including the resolution of RNA structuromes in living cells, the study of RNA folding regulatory mechanisms, and the investigation of non-coding RNA functions .
Cat. No.: HY-183335
Anticancer agent 321 is a Smoothened (SMO) inhibitor with a human IC50 of 0.12 μM, enhanced aqueous solubility, good plasma and metabolic stability, moderate therapeutic index, preliminary safety profile, and moderate oral bioavailability in rats.Anticancer agent 321 binds to SMO’s 7-transmembrane helical channel, forming hydrogen bonds with Asp384 and hydrophobic/π-π interactions with His470, Phe391, Tyr394, stabilizing SMO’s inactive conformation to inhibit Hedgehog/GLI signaling.Anticancer agent 321 inhibits proliferation, suppresses colony formation, induces apoptosis, and downregulates Hedgehog/GLI pathway target genes GLI1, GLI2, Ptch1, HHip in cancer cells.Anticancer agent 321 inhibits tumor growth, downregulates Ki67 and SOX2, and upregulates cleaved-caspase 3 in tumor tissues.Anticancer agent 321 can be used for the research of cutaneous squamous cell carcinoma .
Cat. No.: HY-183583
CAS No.: 2709068-47-1
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HIF-2α-IN-18 is a selective HIF-2α inhibitor with a human IC50 of 8.1 nM. HIF-2α-IN-18 binds to the HIF-2α PAS-B domain, induces conformational perturbations at the HIF-2α/ARNT dimerization interface, destabilizes the HIF-2α/ARNT heterodimer, and blocks HIF-2α-mediated transcriptional activity. HIF-2α-IN-18 inhibits hypoxia-induced expression of HIF-2α target genes EPO and SERPINE1, without inhibiting HIF-1α target genes PGK1 and PDK1. HIF-2α-IN-18 can be used for the research of clear cell renal cell carcinoma, hepatocellular carcinoma[1].
Cat. No.: HY-78985S
CAS No.: 62790-27-6
Synonyms: Trimesic acid-d3
Cat. No.: HY-D3427
CAS No.: 3100316-45-5
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T-sCPY-s500R-H is a NADPH-based FRET ratiometric biosensor probe. T-sCPY-s500R-H forms a 1:1 FRET pair upon binding to the eDHFR-HaloTag fusion protein through conjugation of the donor s500R (green fluorescence) and the acceptor sCPY (red fluorescence) with the HaloTag ligand and the eDHFR ligand (TMP), respectively; NADPH binding to eDHFR induces a conformational change that converts sCPY from a colorless spirolactam form to a red fluorescent form, enabling quantification of NADPH levels through the ratio of red/green fluorescence intensity (Ex = 488 or 490 nm; green channel Em = 500-580 nm; red channel Em = 600-700 nm). T-sCPY-s500R-H is applicable to research in fields such as cell metabolism studies, oxidative stress and NADPH homeostasis analysis, tumor metabolism, and NADPH-modulating drug screening .
Cat. No.: HY-P10984
CAS No.: 206536-96-1
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FNIII14 is a β1-integrin inhibitory peptide. FNIII14 induces the conformational shift of β1-integrin from the active form to the inactive form, blocks integrin-mediated signaling pathways, disrupts the interaction between VLA-4 and fibronectin, inhibits the phosphorylation of FAK/Akt, suppresses cell adhesion, fibronectin fibril formation and chondrocyte proliferation, induces chondrocyte apoptosis and cartilage degeneration, upregulates the pro-apoptotic protein Bim, and binds to membrane-bound eEF1A. FNIII14 reversibly disrupts cell adhesion without reducing cell viability, accelerates adipocyte differentiation, and loosens tumor matrix architecture to enhance the permeability of nanotherapeutic agents. FNIII14 can be used in research related to neuroblastoma, pancreatic cancer, acute myeloid leukemia, colitis-associated colorectal cancer, osteoarthritis, and atherosclerosis .
Cat. No.: HY-151738
CAS No.: 1935981-35-3
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Fmoc-Aeg(N3)-OH is a click chemistry reagent containing an Azide. Alkylating the Nitrogen of an amide bond results in peptoid structures, which leads to conformational restrains, like N-methylation and allows backbone derivatisation. Altering cytotoxicity, bacterial cell selectivity and receptor pharmacology through formation of peptoid derivatives have been published for Cilengitide, Piscidin 1, and MC3, MC4 and MC5 receptor agonist. This building block enables design of macrocycles through intermolecular crosslinking or backbone stabilization through intermolecular ring-closure. This compound is a potential building block for the construction of (customized) peptide nucleic acids (PNAs) and for peptoid synthesis . Fmoc-Aeg(N3)-OH is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.
Cat. No.: HY-160062
S2.2 aptamer sodium is a nucleic acid-based MUC1-binding aptamer with high affinity and low toxicity. Upon binding to its target, S2.2 aptamer sodium undergoes a conformational switch and restores fluorescence signal, serving as a targeted imaging agent for MUC1-positive cancer cells. S2.2 aptamer sodium enables targeted delivery to breast cancer cells with overexpressed MUC1. When formulated as the S2.2-PEG-MZF molecular probe, S2.2 aptamer sodium possesses the functions of T2 signal inhibition, magnetic field-induced hyperthermia and targeted magnetic resonance molecular imaging. In the S2.2-PEG-MZF/DOX nanoliposome, S2.2 aptamer sodium supports targeted thermochemotherapy, effectively inhibiting cancer cell proliferation and invasion as well as inducing apoptosis, and is widely used in studies related to breast cancer .
Cat. No.: HY-181420
CAS No.: 3029184-80-0
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(S,R,S)-BBO-11818 is an orally active, highly selective (relative to NRAS and HRAS), non-covalent pan-KRAS inhibitor (IC50=28-120 nM). (S,R,S)-BBO-11818 specifically binds to the Switch-II/Helix 3 pocket, disrupts the KRAS:RAF1 interaction by inducing conformational changes, and blocks the MAPK signaling pathway. (S,R,S)-BBO-11818 exhibits significant anti-tumor activity, which not only inhibits cell proliferation and induces apoptosis, but also drives tumor regression in xenograft models. (S,R,S)-BBO-11818 produces synergistic effects when combined with Cetuximab (HY-P9905), anti-PD-1 antibody or PI3Kα inhibitor. (S,R,S)-BBO-11818 is used in the research of KRAS mutation-related malignancies such as pancreatic cancer, non-small cell lung cancer and colorectal cancer .
Cat. No.: HY-N0735R
CAS No.: 104112-82-5
Cat. No.: HY-P992053
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Cat. No.: HY-L942
1,626 compounds
Unlike highly conserved orthosteric sites, allosteric sites exhibit low conservation, high hydrophobicity, weak polarity, confined geometry, and dynamic cryptic properties. Rather than rigid keyhole-like cavities, they typically appear as flexible grooves, subunit interface clefts, or shallow depressions formed by protein conformational changes.
Based on the dynamic, hydrophobic, and elongated nature of allosteric pockets, MCE has carried out targeted fragment modification and screening under strict physicochemical criteria: MW 120–280 Da, HBD ≤ 2, HBA ≤ 3, PSA 30–80 Ų, rotatable bonds ≤ 2, cLogP 1–3.5. High 3D diversity was further ensured by PMI analysis, yielding fragments with excellent shape complementarity to allosteric pockets.
This library contains 1,800 structurally diverse, drug-like fragments, this library supports allosteric drug development and pocket optimization. It significantly improves screening hit rates and enables efficient, precise early-stage R&D of allosteric drugs.
Cat. No.: HY-L257
0 compounds
Linkers, as key structural units in PROTAC molecules that connect the two functional ends, not only determine the overall molecular conformation and spatial compatibility but also directly influence the stability of the ternary complex, as well as cellular permeability and degradation efficiency. In recent years, with the widespread application of click chemistry in medicinal chemistry, the incorporation of bioorthogonal reactive groups such as azides (-N3) into PROTAC linker design has become an emerging research focus, providing an important tool for modular assembly and rapid structural optimization.
The MCE Azide PROTAC Linker Library contains 0 linkers specifically designed for targeted protein degradation molecule design and optimization. These linkers serve as efficient “click handles,” enabling rapid and highly selective covalent coupling with alkyne reaction partners, thereby facilitating modular assembly and structural diversification of PROTAC molecules. In drug development, this design not only improves the efficiency of molecular construction but also significantly accelerates the screening and optimization of lead compounds. Meanwhile, by tuning linker properties such as length, flexibility, and polarity, the ability to form ternary complexes and degradation activity can be optimized.
Cat. No.: HY-L062
2,593 compounds
Neurotransmitter (NT) receptors, also known as neuroreceptors, are a broadly diverse group of membrane proteins that bind neurotransmitters for neuronal signaling. There are two major types of neurotransmitter receptors: ionotropic and metabotropic. Ionotropic receptors are ligand-gated ion channels, meaning that the receptor protein includes both a neurotransmitter binding site and an ion channel. The binding of a neurotransmitter molecule (the ligand) to the binding site induces a conformational change in the receptor structure, which opens, or gates, the ion channel. The term “metabotropic receptors” is typically used to refer to transmembrane G-protein-coupled receptors. Metabotropic receptors trigger second messenger-mediated effects within cells after neurotransmitter binding.
In some neurological diseases, the neurotransmitter receptor itself appears to be the target of the disease process. Many neuroactive drugs act by modifying neurotransmitter receptors. A better understanding of neurotransmitter receptor changes in disease may lead to improvements in therapy.
MCE designs a unique collection of 2,593 compounds targeting a variety of neurotransmitter receptors. MCE Neurotransmitter Receptor Compound Library is a useful tool for neurological diseases drug discovery.
Cat. No.: HY-P1341
CAS No.: 343268-91-7
Synonyms: Orexin A (17-33) (human, mouse, rat, bovine)
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Cat. No.: HY-L170
258 compounds
An emerging drug design method is based on the secondary binding site effect, where small molecule drugs are designed to bind to secondary binding sites on target biomolecules rather than primary orthomorphic sites. Successful potential drugs (known as allosteric modulators) will be able to bind to allosteric sites and remotely alter (or modify) the conformation of the main orthosteric binding sites of biological targets. Allosteric modulators (AMs) are ligands of proteins that act through binding sites different from natural (orthosteric) ligand sites. AMs are relatively small, more lipophilic, and more rigid compounds. The binding efficacy of AMs with their targets is often slightly lower. AMs are divided into positive AMs (PAMs) and negative AMs (NAMs). AMs are ideal drug targets because they can fine-tune receptor activity while preserving the spatial and temporal signal transduction characteristics of endogenous ligands, resulting in fewer targeted side effects, improved subtype selectivity, and better promotion of biased signal transduction than normal ligands.
MCE designs a unique collection of 258 small allosteric modulators. It is a good tool to be used for research on metabolize, cancer and other diseases.
Cat. No.: HY-LD005
1.2 billion compounds
Cyclic peptide library have advantages such as high affinity, high selectivity, and suitability for targeting protein–protein interactions. Through DEL synthesis technology, the library size can achieve hundreds of millions. DEL cyclic peptide library have advantages like low cost andhigh screeing efficiency, making them valuable for discovering lead compounds against challenging drug targets.
This cyclic peptide library is constructed with unnatural amino acids as building block, synthesized through DNA-compatible chemical reactions. Each cyclic peptide consist of six amino acids and constrained conformations such as side-chain cross-linking, disulfide bonds, and macrocyclization. These cyclic peptides exhibit significantly improved stability and druggability compared with linear peptides, filling the gap between small molecules and macromolecular biologics. Each cyclic peptide is uniquely conjugated to a DNA barcode sequence for molecular identification and sequencing decoding.
MCE’s cyclic peptide library has8 independent sub-libraries, with a total molecular diversity of 1.2 billion. It is constructed via multi-round combinatorial assembly of building blocks and diverse cyclization strategies, facilitating the discovery of cyclic peptide leads for undruggable targets.
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Protocols
Targeted therapy! The Capetin Prize winning "Click Chemistry" can be used like this!Targeted therapy! The Nobel Prize winning "Click Chemistry" can be used like this!A suitable model is crucial in drug screening experiments. Organs can mimic the three-dimensional functional structure of internal organs, have similar spatial organization to corresponding organs, maintain some key characteristics, and reproduce some physiological functions. They are widely used for modeling and personalized drug screening physiological functions.2025-02-06
