Poly-D-lysine hydrobromide - Molecular weight ≥ 300000 , CAS No.27964-99-4

CAS: 27964-99-4 Cat. No.: P477773 Formula: D-Lys-(D-Lys)n-D-Lys·xHBr EC Number: 959-037-4 PubChem CID: 87493163

GRADE & PURITY Molecular weight ≥ 300000

Synonyms

PDL

Storage

Store at -20°C,Desiccated

Shipped In

Ice chest + Ice pads

Overview

Poly-D-lysine polymers can be used in preparing surfaces for cell attachment. The D-lysine polymers can also be used with cells that digest poly-L-lysine polymers and cause an excessive uptake of L-lysine.

This product is recommended as a cell culture substratum when using 0.5 - 1.0 mL of a 0.1 mg/mL solution to coat 25 cm2. Lower molecular weight versions of the product are less viscous, but high more molecular weight versions provide more attachment sites per molecule.

Biochem/physiol Actions

Poly-D-lysine (PDL) hydrobromide is a nonspecific attachment factor for cells useful in promoting cell adhesion to solid substrates by enhancing electrostatic interaction between negatively charged ions of the cell membrane and the culture surface. After absorption to the culture surface, poly-D-lysine increases the number of positively charged cell binding sites.

Preparation Note

This product has a molecular weight >300,000. To remove the HBr, dissolve this product in a neutral buffer and dialyze to remove the salts. In general, to use this product as an attachment factor, add 50 mL of sterile tissue culture grade water to 5 mg of poly-lysine, and aseptically coat the surface with 1 mL per 25 cm2 of solution. After 5 minutes, remove the solution through aspiration and thoroughly rinse the surface. Let dry for two hours before introducing cells and medium.

Other Notes

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

Disclaimer

Sterile solutions are stable for up to 2 years when stored at 2-8°C. It should be stored desiccated at -20°C.

Specifications

Synonyms

PDL

Specifications & Purity

Molecular weight ≥ 300000

Biochemical and Physiological Mechanisms

Poly-D-lysine (PDL) hydrobromide is a nonspecific attachment factor for cells useful in promoting cell adhesion to solid substrates by enhancing electrostatic interaction between negatively charged ions of the cell membrane and the culture surface. After

Storage

Store at -20°C,Desiccated

Shipped In

Ice chest + Ice pads

This product requires cold chain shipping. Ground and other economy services are not available.

Names and Identifiers

Pubchem Sid

488202440

Pubchem Sid Url

https://pubchem.ncbi.nlm.nih.gov/substance/488202440

Canonical Smiles

C(CCN)CC(C(=O)O)N.Br

IUPAC Name

(2R)-2,6-diaminohexanoic acid;hydrobromide

InChIKey

MEXAGTSTSPYCEP-NUBCRITNSA-N

INCHI

1S/C6H14N2O2.BrH/c7-4-2-1-3-5(8)6(9)10;/h5H,1-4,7-8H2,(H,9,10);1H/t5-;/m1./s1

Isomeric SMILES

C(CCN)C[C@H](C(=O)O)N.Br

PubChem CID

87493163

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Organic acids and derivatives
    • Class Carboxylic acids and derivatives
      • Subclass Amino acids, peptides, and analogues
        • Level5 Amino acids and derivatives
          • Level6 Alpha amino acids and derivatives
            • Level7 Alpha amino acids
              • Level8 D-alpha-amino acids

• Kingdom: Organic compounds
• Superclass: Organic acids and derivatives
• Class: Carboxylic acids and derivatives
• Subclass: Amino acids, peptides, and analogues
• Intermediate Tree Nodes: Amino acids and derivatives - Alpha amino acids and derivatives - Alpha amino acids
• Direct Parent: D-alpha-amino acids
• Alternative Parents: Medium-chain fatty acids Amino fatty acids Amino acids Monocarboxylic acids and derivatives Carboxylic acids Organic oxides Monoalkylamines Hydrocarbon derivatives Hydrobromides Carbonyl compounds
• Molecular Framework: Aliphatic acyclic compounds
• Substituents: D-alpha-amino acid - Medium-chain fatty acid - Amino fatty acid - Fatty acid - Fatty acyl - Amino acid - Carboxylic acid - Monocarboxylic acid or derivatives - Amine - Hydrobromide - Hydrocarbon derivative - Primary amine - Organooxygen compound - Organonitrogen compound - Organic oxide - Primary aliphatic amine - Organic oxygen compound - Carbonyl group - Organic nitrogen compound - Aliphatic acyclic compound
• Description: This compound belongs to the class of organic compounds known as d-alpha-amino acids. These are alpha amino acids which have the D-configuration of the alpha-carbon atom.
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Solubility: H2O: soluble 50 mg/mL, clear, colorless
• Sensitivity: Sterile solutions can be stably stored for 2 years at 2-8 ℃. Dehydrate and store at -20 ° C.Moisture sensitive
• Flash Point(°F): Not applicable
• Flash Point(°C): Not applicable