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Results for "

α-helix

" in MedChemExpress (MCE) Product Catalog:

27

Inhibitors & Agonists

2

Screening Libraries

5

Biochemical Assay Reagents

20

Peptides

Cat. No. Product Name Target Research Areas Chemical Structure
  • HY-P5423

    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 .
    GALA
  • HY-P0311

    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 .
    LAH4
  • HY-P2080B

    Insulin Receptor Metabolic Disease
    GIP (1-30) amide,human acetate is a glucose-dependent insulinotropic polypeptide (GIP) fragment. GIP is an incretin hormone that stimulates insulin secretion and reduces postprandial glycaemic excursions. GIP (1-30) amide,human acetate dose-dependently promotes insulin secretion over the range 10 -9-10 -6 M .
    GIP (1-30) amide,human acetate
  • HY-W006886

    Amino Acid Derivatives Others
    Fmoc-(R)-2-(7-octenyl) Ala-OH is an unnatural Fmoc-protected amino acid and modification module. Fmoc-(R)-2-(7-octenyl) Ala-OH serves as a key building block for all-hydrocarbon cross-linking modification of antimicrobial peptides, and facilitates the generation of stapled peptide derivatives. When introduced into specific sites of the parent peptide, Fmoc-(R)-2-(7-octenyl) Ala-OH effectively increases the α-helix content of the peptide chain, thereby significantly enhancing its antimicrobial activity and proteolytic stability. Fmoc-(R)-2-(7-octenyl) Ala-OH is widely used in research on bacterial infections and the development of related antimicrobial agents . Stapled peptide is a specially chemically modified polypeptide. It locks the peptide chain into a stable α-helical structure by introducing a "staple"-like chemical bridge (usually an all-carbon backbone) at specific positions of the peptide chain.
    Fmoc-(R)-2-(7-octenyl)Ala-OH
  • HY-P1341

    Orexin A (17-33) (human, mouse, rat, bovine)

    Orexin Receptor (OX Receptor) Sigma Receptor Phospholipase Neurological Disease
    OXA (17-33) (Orexin A (17-33) (human, mouse, rat, bovine)) is the shortest active orexin peptide that selectively targets OX1 (EC50=8.29 nM), with 23-fold selectivity for the OX1 receptor over the OX2 receptor. The activity of OXA (17-33) depends on the Tyr17, Leu20, Asn25, His26 residues and the spatial conformation of the α-helix. OXA (17-33) activates signaling pathways involving inositol-1,4,5-trisphosphate receptor (IP3R), phospholipase D (PL-D) and choline-Sigma-1R, thereby increasing the cytoplasmic Ca 2+ level in nucleus accumbens neurons, an effect that is blocked by Sigma-1R antagonists. OXA (17-33) serves as an important biological probe for investigating the function of the OX1 receptor. OXA (17-33) can be modified via incorporation of mixed disulfide bonds of homocysteine and cysteamine, and is widely used in studies related to insomnia and narcolepsy .
    OXA(17-33)
  • HY-P0311A

    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 .
    LAH4 TFA
  • HY-75129

    Biochemical Assay Reagents Others
    Pyridin-3-ylboronic acid is an organic compound. Pyridin-3-ylboronic acid is a key reagent in the Suzuki-Miyaura cross-coupling reaction. Pyridin-3-ylboronic acid is used in organic synthesis to construct oligopyridine compounds, and then as an α-helix mimetic to study protein-protein interactions .
    Pyridin-3-ylboronic acid
  • HY-P4118

    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 .
    EB1 peptide
  • HY-P2294A
    pm26TGF-β1 peptide TFA
    1 Publications Verification

    TGF-β Receptor Inflammation/Immunology
    pm26TGF-β1 TFA peptide is a peptide that mimics a portion of the human TGF-β1 molecule. pm26TGF-β1 peptide TFA shows high affinity for the TGF-β1 receptor. pm26TGF-β1 peptide TFA displays potent anti-inflammatory properties and does not exhibit neutrophils’ chemoattraction .
    pm26TGF-β1 peptide TFA
  • HY-P4119

    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 .
    Pep-1-Cysteamine
  • HY-P5917A

    Vaejovis mexicanus peptide 24 TFA

    Potassium Channel Inflammation/Immunology Cancer
    Vm24-toxin (Vaejovis mexicanus peptide 24) TFA, a 36-residue peptide, is a potent and selective Kv1.3 blocker with a Kd of ~3 pM in lymphocytes. Vm24-toxin TFA shows >1500-fold affinity for Kv1.3 over other assayed potassium channels. Vm24-toxin TFA folds into a distorted cystine-stabilized α/β motif consisting of a single-turn α-helix and a three-stranded antiparallel β-sheet, stabilized by four disulfide bridges. Vm24-toxin TFA attenuates the CD4 + effector memory T cell response to T cell receptor (TCR) stimulation .
    Vm24-toxin TFA
  • HY-P10319

    PKA Cardiovascular Disease Cancer
    RI-STAD-2 is a high-affinity interfering peptide that regulates the subunit RI of protein kinase A (PKA). RI-STAD-2 interferes with the binding of AKAPs and PKA-RI by simulating the interaction between AKAPs' α-helix domain and PKA-RI's dimerization/anchoration (D/D) domain, thereby affecting PKA activity and intracellular localization. RI-STAD-2 can be used to study the role of AKAPs interaction with PKA-RI in pathological processes such as cardiovascular disease and cancer .
    RI-STAD-2
  • HY-P2080

    Insulin Receptor Metabolic Disease
    GIP (1-30) amide,human is a glucose-dependent insulinotropic polypeptide (GIP) fragment. GIP is an incretin hormone that stimulates insulin secretion and reduces postprandial glycaemic excursions. GIP (1-30) amide,human dose-dependently promotes insulin secretion over the range 10 -9-10 -6 M .
    GIP (1-30) amide,human
  • HY-P3916

    Bacterial Infection Inflammation/Immunology
    GVLSNVIGYLKKLGTGALNAVLKQ is an antimicrobial peptide with 24-amino acid. GVLSNVIGYLKKLGTGALNAVLKQ can potentially form α-helix. GVLSNVIGYLKKLGTGALNAVLKQ (PGQ) has activity against Gram-negative, Gram-positive bacteria and the yeast Candida albicans .
    GVLSNVIGYLKKLGTGALNAVLKQ
  • HY-P2294

    TGF-β Receptor Inflammation/Immunology
    pm26TGF-β1 peptide is a peptide that mimics a portion of the human TGF-β1 molecule. pm26TGF-β1 peptide shows high affinity for the TGF-β1 receptor. pm26TGF-β1 peptide displays potent anti-inflammatory properties and does not exhibit neutrophils’ chemoattraction .
    pm26TGF-β1 peptide
  • HY-P10534

    Prion Protein Infection Neurological Disease
    CCβ is a simple 17-amino acid peptide designed in research. CCβ is able to mimic the conformational transition of proteins from α-helix to β-sheet, which is a key step in the aggregation of proteins associated with many diseases, such as Alzheimer's disease and prion disease. CCβ can be used to study diseases related to protein aggregation .
    ccβ
  • HY-168886

    c-Myc Cancer
    Anticancer agent 263 (compound 7) is a potent anticancer agent. Anticancer agent 263 binds to the G-quadruplex DNA (G4) sequence 22-mer Pu22, a mimic of c-Myc DNA. Anticancer agent 263 is a structure modulator, showcasing a significant enhancement in protein α-helix formation and the capability to form supramolecular network. Anticancer agent 263 shows no cytotoxicity .
    Anticancer agent 263
  • HY-P5917

    Vaejovis mexicanus peptide 24

    Potassium Channel Inflammation/Immunology Cancer
    Vm24-toxin (Vaejovis mexicanus peptide 24), a 36-residue peptide, is a potent and selective Kv1.3 blocker with a Kd of ~3 pM in lymphocytes. Vm24-toxin shows >1500-fold affinity for Kv1.3 over other assayed potassium channels. Vm24-toxin folds into a distorted cystine-stabilized α/β motif consisting of a single-turn α-helix and a three-stranded antiparallel β-sheet, stabilized by four disulfide bridges. Vm24-toxin attenuates the CD4 + effector memory T cell response to T cell receptor (TCR) stimulation .
    Vm24-toxin
  • HY-P2080C

    Insulin Receptor Metabolic Disease
    GIP (1-30)-Myr is the Myr-modified GIP (1-30), which is a glucose-dependent insulinotropic polypeptide (GIP) fragment. GIP is an incretin hormone that stimulates insulin secretion and reduces postprandial glycaemic excursions. GIP (1-30) dose-dependently promotes insulin secretion over the range 10 -9-10 -6 M .
    GIP (1-30)-Myr
  • HY-169173

    Cholinesterase (ChE) Infection
    AL284 is a potent anopheles gambiae acetylcholinesterase 1 (AgAChE1) inhibitor. AL284 interactions with Tyr489Ag in the α-helix next to loop 2, and Trp441Ag at the top of the gorge. AL284 has the potential for the research of disease-transmitting mosquitoes .
    AL284
  • HY-P11630

    Bacterial Cardiovascular Disease Infection
    ZM-804 is a cationic α-helix antimicrobial peptide. ZM-804 targets bacterial cell membranes. ZM-804 demonstrates antimicrobial activity and prevents the infection of tomato plants by Pst DC3000. ZM-804 inhibits the growth of B. subtilis and E. coli (the same MICs of 41.10 μg/mL). ZM-804 exhibits low hemolytic activity .
    ZM-804
  • HY-180201

    SGLT Metabolic Disease
    SGLT2-IN-4 (Compound 1) is a selective and orally active sodium-dependent glucose cotransporter-2 (SGLT2) inhibitor. SGLT2-IN-4 can increase the proportion of protein α-helix and enhance the stability of the SGLT2-D201A mutant. SGLT2-IN-4 can be used for the research of type 2 diabetes .
    SGLT2-IN-4
  • HY-182098C

    Liposome Cancer
    DSPE-PEG5000-GALA is a PEG compound which composed of DSPE and a lung endothelium-targeting peptide GALA (HY-P5423). 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. DSPE-PEG5000-GALA can be used for drug delivery .
    DSPE-PEG5000-GALA
  • HY-182098

    Liposome Cancer
    DSPE-PEG1000-GALA is a PEG compound which composed of DSPE and a lung endothelium-targeting peptide GALA (HY-P5423). 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. DSPE-PEG1000-GALA can be used for drug delivery .
    DSPE-PEG1000-GALA
  • HY-182098A

    Liposome Cancer
    DSPE-PEG2000-GALA is a PEG compound which composed of DSPE and a lung endothelium-targeting peptide GALA (HY-P5423). 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. DSPE-PEG2000-GALA can be used for drug delivery .
    DSPE-PEG2000-GALA
  • HY-182098B

    Liposome Cancer
    DSPE-PEG3400-GALA is a PEG compound which composed of DSPE and a lung endothelium-targeting peptide GALA (HY-P5423). 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. DSPE-PEG3400-GALA can be used for drug delivery .
    DSPE-PEG3400-GALA
  • HY-182754

    SARS-CoV Virus Protease Infection
    SARS-CoV-2 Mpro-IN-57 is an irreversible SARS-CoV-2 main protease inhibitor with an IC50 of 0.41 μM and a Kd of 247.37 nM. SARS-CoV-2 Mpro-IN-57 forms a covalent bond with the key amino acid residue Cys145 in SARS-CoV-2 main protease via its -CN group. SARS-CoV-2 Mpro-IN-57 can be used for the research of COVID-19 .
    SARS-CoV-2 Mpro-IN-57

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