47 Results for "

peptide cyclization

" in MedChemExpress (MCE) Product Catalog:
Products (47)

47 Results for "peptide cyclization" in MCE Product Catalog:

Cat. No.: HY-P3756A
Synonyms: EMP-1 acetate
Target:  

Inhibitory Antibodies

Research Areas:  

Cardiovascular Disease

EPO mimetic peptide-1 (EMP-1) acetate, a 20 amino acid peptide. EPO mimetic peptide-1 acetate stimulates cell proliferation, affects cell cycle and induces the production of reticulocytes in vivo .
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Cat. No.: HY-P11716
CAS No.: 351327-13-4
Target:  

ERK

Research Areas:  

Cancer

HYD-1 is a D-amino acid tumor cell adhesion peptide. HYD-1 contains overlapping linear peptide elements required for adhesion, migration blocking, and ERK signaling activation. HYD-1 supports adhesion of breast, prostate, ovarian, and pancreatic tumor cells, and shows no effect on tumor cell cycle distribution. HYD-1 can be used for the research of prostate cancer .
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Cat. No.: HY-L951
505 compounds

Macrocyclic scaffolds are increasingly valued in modern drug discovery for their exceptional activity against undruggable targets (proteases, kinases, PPIs). 2026 marks a key commercial breakthrough for oral macrocyclic peptides: enlicitide, the world’s first oral PCSK9 macrocyclic peptide, has received FDA approval. Macrocyclic candidates targeting KRAS and other classic undruggable targets have also entered clinical development, validating macrocyclization as an effective strategy to overcome druggability barriers.

Two core R&D directions lead current macrocyclic drug design: AI-driven de novo generation and structural optimization of small-molecule macrocycles, and macrocyclic peptides based on sequence design and conformational engineering. Macrocycle druggability hinges on embedded linkers, which determine cyclization efficiency, final conformation and drug-like properties. Bifunctional reaction orthogonality is the core linker selection criterion. Our linker library enables stepwise intramolecular cyclization with suppressed side reactions, accommodates varied ring sizes, and covers three key reaction systems: amide condensation, nucleophilic substitution and CuAAC click chemistry.

Built on classical macrocyclization systems, the library is processed through reaction classification, bifunctional orthogonality evaluation, novelty clustering and redundancy removal, with PROTAC long-chain and ADC cleavable linkers explicitly excluded. Featuring rigid, semi-rigid and flexible scaffolds, it is widely applicable to small-molecule macrocycle synthesis and linear peptide cyclization.

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.

Cat. No.: HY-P991864
Synonyms: MDX-124
Research Areas:  

Cancer

Annexuzlimab is a humanised IgG1 monoclonal antibody which specifically binds to ANXA1 disrupting its interaction with formyl peptide receptors 1 and 2 (FPR1/2). Annexuzlimab arrests cell cycle progression with cancer cells accumulating in the G1 phase. Annexuzlimab targets secreted ANXA1, preventing FPR1/2 activation and reducing cancer progression. Annexuzlimab can be used for the research of triple negative breast cancer, pancreatic cancer and osteosarcoma .
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Cat. No.: HY-P11642
CAS No.: 131748-26-0
Sialorphin is a neutral endopeptidase (NEP) and aminopeptidase N (APN) inhibitor that responds to androgen signals. Sialorphin blocks the degradation of endogenous opioid peptides and interacts with μ-, δ-, κ-opioid receptors. Sialorphin regulates the ERK/mTOR signaling pathway by inducing cell cycle arrest, enhancing ERK1/2 activity, and reducing the phosphorylation levels of mTOR, 4E-BP1, p70S6K; accordingly, Sialorphin exhibits antiproliferative activity against colorectal cancer, glioma and prostate cancer cells without cytotoxicity. In addition, Sialorphin also produces antinociceptive responses, regulates sexual behavior, relaxes corpus cavernosum smooth muscle, and alleviates experimental colitis. Sialorphin is also a copper (II) ion-binding ligand. Sialorphin has been used in mechanistic studies related to cancer, pain management and inflammatory bowel disease .
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Cat. No.: HY-180989
PROTAC PLK1 Degrader-2 is a peptide-based N-end rule PLK1 mini-PROTAC. PROTAC PLK1 Degrader-2 utilizes Arg12 as dual-function cell-permeable N-degron to recruit UBR1/UBR2 E3 ligases, mediates PLK1 ubiquitination and proteasome-dependent degradation. PROTAC PLK1 Degrader-2 suppresses cervical cancer cell proliferation, induces G2/M cell cycle arrest and tumor cell apoptosis, and exerts potent in vivo anti-tumor efficacy in mice and can be applied to research on PLK1-driven cervical carcinoma (PLK1 ligand: POI ligand-3 (HY-180990); E3 ligase ligand: Arg12 (HY-P11631); PROTAC linker: 6-Aminocaproic acid (HY-B0236)) .
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