P9155

Poly-ʟ-Lysine Hydrobromide

synthetic, mol wt 30,000-70,000, powder, γ-irradiated, suitable for cell culture, BioXtra

• Synonyme(s) : PDL HBr
• Numéro CAS: 25988-63-0
• Numéro MDL: MFCD00237230
• Code UNSPSC : 12352202
• eCl@ss : 32160406
• ID de substance PubChem : 24899014
• Nomenclature NACRES : NA.75

Propriétés

• Nom du produit: Poly-L-lysine hydrobromide, mol wt 30,000-70,000, lyophilized powder, γ-irradiated, BioXtra, suitable for cell culture
• Source biologique: synthetic (organic)
• Niveau de qualité: 200
• Stérilité: γ-irradiated
• Gamme de produits: BioXtra
• Forme: lyophilized powder
• Poids mol.: 30,000-70,000
• Conditionnement: pkg of 5 mg
• Technique(s): cell culture | mammalian: suitable
• Couverture de surface: 4 μg/cm²
• Solubilité: H₂O: soluble 50 mg/mL, clear, colorless
• Conditions d'expédition: ambient
• Température de stockage: −20°C
• Chaîne SMILES: Cl.NCCCCC(N)C(O)=O
• InChI: 1S/C18H38N6O4/c19-10-4-1-7-13(22)16(25)23-14(8-2-5-11-20)17(26)24-15(18(27)28)9-3-6-12-21/h13-15H,1-12,19-22H2,(H,23,25)(H,24,26)(H,27,28)/t13-,14-,15-/m0/s1
• Clé InChI: WBSCNDJQPKSPII-KKUMJFAQSA-N

Description

Description générale

Poly-L-lysine is a positively charged amino acid polymer with approximately one HBr per lysine residue. The hydrobromide allows the poly-L-lysine to be in a crystalline form soluble in water. A small amount of product may be found in the beta structure because the HBr interferes with hydrogen bonding between amino and either the carboxyl groups or N or O containing moieties. Poly-L-lysine hydrobromide is a nonspecific attachment factor in promoting cell adhesion to the substratum.

Application

Recommended as a cell culture substratum when using 0.5 ml of a 0.1 mg/ml solution to coat 25 cm². Optimal conditions for attachment must be determined for each cell line and application.
Poly-L-lysine hydrobromide has been used to adhere the dissociated cells of cortical tissues into the culture plates. It has also been used to treat slides, to fix samples on it for immunohistochemical analysis.

Actions biochimiques/physiologiques

Poly-L-lysine is employed as a coating substance to facilitate improved cell attachment to culture surfaces. Research indicates that plates coated with poly-L-lysine (PLL) exhibit an accelerated cell growth rate. When mesenchymal stem cells (MSCs) are cultured on PLL-coated substrates, it helps preserve their stemness properties and prevents senescence. PLL-coated plates promote enhanced MSC growth and up-regulation of genes associated with cell adhesion, differentiation, proliferation, and signaling. Furthermore, porous PLL-coated surfaces have been shown to enhance cell proliferation and support the osteogenic differentiation of MSCs.

Composants

La poly-L-lysine est un polymère d′acide aminé à charge positive, comportant environ un HBr par résidu de lysine. Le bromhydrate permet de former une poudre cristalline de poly-L-lysine soluble dans l′eau. Une petite quantité de produit peut se trouver dans des structures bêta, car le HBr interfère avec la formation de liaisons d′hydrogène entre les groupes aminés et les groupes carboxyliques ou les parties contenant des atomes N ou O.

Attention

Les solutions stériles sont stables pendant environ 2 ans si conservées entre 2 et 8 °C. Conserver à une température de -20  C en présence d′un déshydratant.

Remarque sur l'analyse

Molecular weight based on viscosity. Also assayed by MALLS.

Autres remarques

For additional technical information on polyamino acids please visit the Polyamino acid FAQ resource.

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Gloves, type N95 (US)