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Results for "

amphipathic α-helix

" in MedChemExpress (MCE) Product Catalog:

9

Inhibitors & Agonists

4

Biochemical Assay Reagents

6

Peptides

Cat. No. Product Name Target Research Area
  • HY-P5423
    GALA

    		Exosomes Liposome Cancer
    GALA is a pH-responsive amphipathic peptide consisting of 30 amino acids, which acts as a lung endothelium-targeting ligand. GALA undergoes a conformational transition from random coil to α-helix in an acidic environment at pH 5.0, thereby inducing endosomal membrane destabilization and fusion. GALA-modified liposomes traverse lung endothelial cells via clathrin-dependent endocytosis and transcytosis, and specifically accumulate in the lungs after intravenous injection. GALA significantly promotes the cytosolic release of cargos carried by exosomes, plasmids and liposomes, effectively enhances gene transfection efficiency, and drives gene knockdown of functional macromolecules (such as siRNA) in alveolar epithelial cells (with no significant cytotoxicity at effective concentrations). GALA serves as a critical tool for studies on lung cancer metastasis (e.g., melanoma lung metastasis) and lung-targeted drug delivery systems .
  • HY-P0311
    LAH4

    		Bacterial Infection
    LAH4, an alpha-helix of the designed amphipathic peptide antibiotic, exhibits potent antimicrobial, nucleic acid transfection and cell penetration activities. LAH4 possesses high plasmid DNA delivery capacities. LAH4 has a strong affinity for anionic lipids found in the outer membrane of bacterial membranes .
  • HY-P0311A
    LAH4 TFA

    		Bacterial Infection
    LAH4 TFA, an alpha-helix of the designed amphipathic peptide antibiotic, exhibits potent antimicrobial, nucleic acid transfection and cell penetration activities. LAH4 TFA possesses high plasmid DNA delivery capacities. LAH4 TFA has a strong affinity for anionic lipids found in the outer membrane of bacterial membranes .
  • HY-P4118
    EB1 peptide

    Penetrating analog

    		 Amino Acid Derivatives Peptide-Drug Conjugates (PDCs) Others
    EB1 peptide (Penetrating analog) is an endosomolytic agent and siRNA delivery agent. EB1 peptide forms an amphipathic alpha helix upon protonation in early-late endosomes, drives endosomal membrane permeabilization, and enables endocytosed siRNA escape into the cytosol. EB1 peptide facilitates biologically active siRNA cellular uptake and targeted gene silencing. EB1 peptide forms complexes with siRNA. EB1 peptide can be used for drug delivery research .
  • HY-P4119
    Pep-1-Cysteamine

    		Biochemical Assay Reagents Others
    Pep-1-Cysteamine is an amphipathic chimeric cell-penetrating peptide. Pep-1-Cysteamine can penetrate biological membranes in an energy-independent manner without forming transmembrane pores, and efficiently deliver active proteins into cells, with its translocation dominated by electrostatic interactions and membrane perturbation .
  • HY-P5423C
    GALA-Cys

    		Peptides Others
    GALA-Cys is a chemically modified GALA peptide (HY-P5423) that retains GALA functions while acquiring strong covalent conjugation capability. GALA-Cys undergoes pH-driven reversible secondary structure transition, rearranges into an amphipathic α-helix, self-oligomerizes, penetrates lipid membranes to form pores, and disrupts lipid bilayers, thereby enabling endosomal escape and cytosolic cargo delivery. GALA-Cys can be conjugated with lipid DPTE for integration into liposomes, self-assembles into a tilted monolayer on gold surfaces, and serves as a pH-responsive coating for particle surface functionalization. GALA-Cys is applicable to studies related to targeted cargo delivery .

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