Peptídeos

α-connexin carboxyl terminal peptide that specifically targets and maintains Cx43 at gap junction sites between cell-cell membrane borders of breast cancer cell.- Thus it augments gap junction activity and impairs proliferation and survival of breast cancer cells with no effect on non-transformed cells.

The pathology of cardiovascular disease (CVD) is linked to the health of endothelial cells in the heart.- However, the specific characteristics of the cardiovascular endothelial cells are still being uncovered. The heart homing peptide specifically binds to a receptor on cardiovascular endothelial cells. This peptide can be used as a conjugate to deliver molecules specifically to the heart. This can be a crucial tool in therapeutic drug delivery for CVD, angiogenesis, and thrombosis.

Boc-D-Asp(OcHex)-OH is a peptide that belongs to the group of activators. It binds to the receptor and induces a conformational change in the receptor protein, which leads to activation of an ion channel. Boc-D-Asp(OcHex)-OH is also known as orexin A, which is a peptide that regulates appetite and sleep. This compound has been shown to stimulate the release of histamine from mast cells and inhibit tumor necrosis factor production. It has been used as a research tool for studying protein interactions and ligand binding. Boc-D-Asp(OcHex)-OH has been shown to be an inhibitor of calcium channels, potassium channels, and sodium channels in vitro at low concentrations (10 μM).

Histone H3 (1-20)-GG-[Lys(5-FAM)] is derived from Histone 3 (H3) which is one of the four core histones (H2A, H2B, H3 and H4) fundamental in compacting eukaryotic DNA into the nucleosome. The nucleosome arises when 147 base pairs of DNA wrap around a H3-H4 tetramer and two H2A-H2B dimers, forming the histone octamer core. Both H4 and H3 are highly conserved and perform roles in binding to segments of DNA which enter and leave the nucleosome and in chromatin formation. Similar to the other core histone, H3 has a globular domain and a flexible N-terminal domain, 'histone tail' which can undergo modifications such as acetylation, methylation, phosphorylation and ubiquitination. Due to histones containing a large number of lysine and arginine residues they have a positive net charge which interacts in an electrostatic manner with the negatively charged phosphate groups in DNA. The transcriptional activation or silencing of the chromatin is controlled by ATP-dependent chromatin remodelling factors and histone modifying enzymes which target histone proteins. Both processes function to alter the positioning of the nucleosome, allowing the DNA it to be either available or inaccessible to the transcription machinery.Histone H3 (1-20)-GG-[Lys(5-FAM)] has a C-terminal GKK linker labelled with 5-Carboxyfluorescein (5-FAM), a widely used green fluorescent tag. This peptide also has an uncharged C-terminal amide.

Peptide H-DHIGTR^-OH is a Research Peptide with significant interest within the field academic and medical research. This peptide is available for purchase at Cymit Quimica in multiple sizes and with a specification of your choice.

The ionic-complementary octapeptide, FEFEFKFK, can self-assemble into antiparallel β-sheet rich fibres and forms very stable hydrogels when at a concentration of more than 20 mg/mL (in water).These peptide hydrogels are naturally biocompatible and biodegradable and can be metabolised by the body. Such hydrogels have been shown to mimic the structure of the extracellular matrix, thus offering cells a niche to undertake their physiological functions. These properties mean that these hydrogels have the potential for use in medical applications.FEFEFKFK hydrogels are able to support the culture of cells such as mesenchymal stem cells in three dimensions with sustained cell viability. They can also support the differentiation into osteoblasts and promote mineralisation upon addition of osteogenic stimulation. They therefore have potential for use in the regeneration of hard tissues such as alveolar bone following injury or degeneration.

Custom research peptide; min purity 95%. For different specs please use the Peptide Quote Tool

Fmoc-Ile-OH is a sodium salt that is used in the synthesis of peptides. It provides the hydroxyl group to the peptide chain, and can be used in solid-phase synthesis. The protonated form of Fmoc-Ile-OH is useful for acetonitrile solvents. Fmoc-Ile-OH has shown antibacterial activity against gram-positive bacteria such as Staphylococcus aureus and Streptococcus pneumoniae. Clinical development of this drug has been successful in treating infections caused by multidrug resistant bacteria, such as MRSA, Acinetobacter baumannii, and Pseudomonas aeruginosa.