Polylysine, Poly-L-Lysine, KKKKKKKKKK, K10

Product Name
Polylysine, KKKKKKKKKK
Product Quantity
10mg, >95%
Catalog Number
LT2069
Molecular Weight
1299.77
Formula
C60H122N20O11
Sequence
Lys-Lys-Lys-Lys-Lys-Lys-Lys-Lys-Lys-Lys, KKKKKKKKKK
Description

Poly-L-lysine is a synthetic amino acid chain composed exclusively of lysine residues, typically denoted by the sequence (K)10 or KKKKKKKKKK. This potent biochemical tool is revered for its versatility in biological experiments and its affinity for promoting cell adhesion—a critical factor in cell culture and tissue engineering applications.

The linear molecule Poly-L-lysine has established its utility as an essential coating substrate for culture dishes, slides, and other surfaces, enabling cells to attach more effectively. This fosters a more consistent and viable environment for cell growth, particularly for cells that do not readily adhere to ordinary cultureware. The presence of positive charges along the Poly-L-lysine chain encourages interaction with negatively charged cell membrane components, enhancing cell surface binding.

Furthermore, Poly-L-lysine is frequently employed as a slide coating in microscopy to prevent the loss of specimens during processing, thereby ensuring the integrity and clarity of microscopic observations. It also serves a pivotal role in facilitating neuronal growth, making it an indispensable reagent in neuroscience research where the culture of finicky neurons is required. Poly-L-lysine solution has been used for the attachment of endothelial cell cross sections to UV-crosslinked PET membrane frame slides. Poly-L-lysine coated slides were used for the placement of tissue sections for immunohistochemical assay.

Additionally, this polymer finds its use in the immobilization of enzymes and other proteins for analytical purposes, supporting a broad range of biochemical assays. Its use extends to nucleic acid purification protocols as well, where Poly-L-lysine can be used to precipitate DNA and RNA from lysates.

With advancements in cell biology and biotechnology, Poly-L-lysine has garnered attention in therapeutic applications, such as drug delivery systems, where its biocompatibility and degradation into naturally occurring amino acids make it a promising candidate.

The multifaceted roles of Poly-L-lysine in research and its contribution to the advancement of scientific knowledge underscore its value in the life sciences. It's a prime example of how a simple compound can have far-reaching effects in the technological progression of biological experimentation.

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