Cell-penetrating Peptides

TAT TFA (YGRKKRRQRRR) is derived from the transactivator of transcription (TAT) of human immunodeficiency virus (HIV-1) and is a cell-penetrating peptide. TAT can increase the yields and the solubility of heterologous proteins.

RVG-Cys (RVG29-Cys) acetate is a peptide derived from rabies virus glycoprotein (RVG29) with Cys attached to facilitate subsequent conjugation. RVG-Cys acetate enhances the specific targeted delivery of proteins in brain tissue and neurons.

Cys-Gly-Tyr-Gly-Pro-Lys-Lys-Lys-Arg-Lys-Val-Gly-Gly is a13-mer synthetic peptide containing seven amino acids homologous to SV40 T antigen. Cys-Gly-Tyr-Gly-Pro-Lys-Lys-Lys-Arg-Lys-Val-Gly-Gly is capable of inducing nuclear transport.

DfTat is a dimer of the prototypical cell-penetrating peptide TAT. DfTat can deliver small molecules, peptides and proteins into live cells with a particularly high efficiency. DfTat labeled with the rhodamine can be used as a tracer for easy detection.

HIV-1 TAT (48-60) is a cell-penetrating peptide derived from the human immunodeficient virus (HIV)-1 Tat protein residue 48-60. It has been used to deliver exogenous macromolecules into cells in a non-disruptive way.

Cys-Penetratin is a cysteine-containing cell-penetrating peptide with sequence CRQIKIWFQNRRMKWKK. Cys-Penetratin can Cys-Penetratin can be used for the research for the research of drug delivery.

Chimeric Rabies Virus Glycoprotein Fragment (RVG-9R) is a cell-penetrating peptide that is synthesized by adding nona-arginine motif to the carboxy terminus of RVG (rabies virus glycoprotein). Chimeric Rabies Virus Glycoprotein Fragment (RVG-9R) binds to
nAChR on neuronal cells to mediate receptor-mediated endocytosis and targeted siRNA delivery. Chimeric Rabies Virus Glycoprotein Fragment (RVG-9R) protects complexed siRNA from degradation, enhances transcellular siRNA delivery in neuronal cells, and promotes efficient, pecific gene silencing. Chimeric Rabies Virus Glycoprotein Fragment (RVG-9R) can be used for the researches of neurological disease and cancer.

TAT-amide is a cell penetrating peptide. Cell-penetrating peptides (CPPs) are short amino acid sequences able to enter different cells.

LAH4-L1 Is a histidine-rich cell penetrating peptide. LAH4-L1 can form complexes with DNA or siRNA and help their transport.

Transportan is an amphipathic cell-penetrating peptide containing 12 functional amino acids from the amino terminus of the neuropeptide galanin and mastoparan in the carboxyl terminus, connected via a lysine. Transportan interacts with galanin receptors and G-proteins, modulates GTPase activity, enters cells via direct translocation and endocytic pathways, accumulates in cytoplasmic, nuclear, and membranous structures, and delivers cargo including peptides, PNAs, proteins, siRNA, and liposomes^[12].

Pepinh-MYD is a MyD88 inhibitor that contains a domain sequence from MyD88 TIR and a protein transduction sequence, enabling it to penetrate the cell membrane. Pepinh-MYD interferes with MyD88-mediated TLR signaling pathways, thereby inhibiting related immune responses. It holds potential for studying the role of MyD88 in viral infections.

RVG TFA is a peptide derived from Rabies Virus Glycoprotein that binds to the α-7 subunit of nicotinic acetylcholine receptors (AchR) of neuronal cells. RVG enhances delivery of Mycobacterium tuberculosis antigens to antigen-presenting cells.

KALA is an amphiphilic peptide that forms an α-helical structure at physiological pH. KALA modifies a plasmid DNA-encapsulating liposomal membrane and is used as a fusogenic peptide in order to achieve effective liver targeting and transfection of DNA via galactose receptors.

(Arg)9, FAM-labeled, a cell-penetrating peptide (CPP), is a nona-arginine (ARG) with FAM label. CPPs have emerged as powerful tools for delivering bioactive cargoes into the cytosol of intact cells.

Octaarginine acetate is a cell-penetrating peptide and proteasome inhibitor. Octaarginine acetate exhibits mixed-type inhibition against 20S proteasome chymotrypsin-like, caspase-like, and trypsin-like activities, and inhibits 26S proteasome activity with decreased efficiency. Octaarginine acetate induces ubiquitin-conjugated protein accumulation, mediates HSPG-dependent cellular internalization via macropinocytosis, enhances liposomal cargo uptake and gene delivery. Octaarginine acetate can be used for the research of cervix carcinoma, collagen antibody-induced arthritis, and bacterial infections.

SV40 T-Ag-derived NLS peptide TFA is a nuclear localization signal DNA tagged to this peptide efficiently translocates into the cell nucleus.

MPG peptides, Pβ is an amphipathic cell-penetrating peptide. MPG peptides, Pβ consists of three components: the hydrophobic fusion sequence (GALFLGFLGAAGSTMGA) of HIV glycoprotein 41, a spacer domain (WSQP), and the nuclear localization signal (KKKRKV) of the large T antigen of Simian virus 40. MPG peptides, Pβ can form stable non-covalent complexes with nucleic acids (including DNA) through electrostatic interactions and improve their intracellular delivery. MPG peptides, Pβ can be used in studies of HIV-1-related immune responses.

Angiopep-2 azide is a peptide derivative of Angiopep-2 (HY-P2341) bearing a side chain azide (N3) group. Angiopep-2 exhibits high blood-brain barrier (BBB) penetration capability and can be used for brain compound delivery.

TAT (47-57), FAM-labeled acetate is a 5(6)-Carboxyfluorescein (HY-15940)-labeled TAT (HY-P0281). TAT (YGRKKRRQRRR) is derived from the transactivator of transcription (TAT) of human immunodeficiency virus-1 (HIV-1) and is a cell-penetrating peptide.

CPP9 TFA is a small, amphipathic, cyclic cell penetrating peptide (CPP). CPPs bind directly to the plasma membrane phospholipids and enter mammalian cells via endocytosis, followed by efficient release from the endosome. CPP9 TFA can be used for intracellular delivery of therapeutic agents and chemical probes.