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P5899

Sigma-Aldrich

Poly-ʟ-Lysine Hydrobromide

synthetic, mol wt ≥300,000, powder, γ-irradiated, suitable for cell culture, BioXtra

Synonym(s):

PDL HBr

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About This Item

CAS Number:
25988-63-0
MDL number:
MFCD00237230
UNSPSC Code:
12352202
eCl@ss:
32160406
PubChem Substance ID:
24898718
NACRES:
NA.75

product name

Poly-L-lysine hydrobromide, mol wt ≥300,000, lyophilized powder, γ-irradiated, BioXtra, suitable for cell culture

biological source

synthetic (organic)

Quality Level

200

sterility

γ-irradiated

product line

BioXtra

form

lyophilized powder

mol wt

≥300,000

packaging

pkg of 5 mg

technique(s)

cell culture | mammalian: suitable

surface coverage

4 μg/cm2

impurities

<10% water (by Karl Fischer)

solubility

H2O: soluble 50 mg/mL, clear to very slightly hazy, colorless to faintly yellow

shipped in

ambient

storage temp.

−20°C

SMILES string

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

InChI key

WBSCNDJQPKSPII-KKUMJFAQSA-N

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Application

Poly-L-lysine hydrobromide has been used to coat:
  • 2-well plates before seeding muscle cells in a research study on rainbow trout myotube formation
  • flat bottom 96-well plates for in vitro neuronal stem cell differentiation
  • T75 flasks for primary astrocytic cultures

Biochem/physiol Actions

Poly-L-lysine serves as a coating substance to ensure better attachment of cells to culture surfaces. Research shows that plates coated with poly-L-lysine (PLL) demonstrated an accelerated cell growth rate. Culturing mesenchymal stem cells (MSCs) on PLL-coated substrates has been found to safeguard the stemness properties of these cells and inhibit senescence. PLL-coated plates have demonstrated enhanced MSC growth and up-regulated the expression of genes associated with cell adhesion, differentiation, proliferation, and signaling. Moreover, porous PLL-coated surfaces have shown improvements in cell proliferation and the osteogenic differentiation of MSCs.

Components

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.

Caution

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

Analysis Note

Molecular weight based on viscosity. Also assayed by MALLS.

Other Notes

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

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Polylysine for skin regeneration: A review of recent advances and future perspectives
Payam Zarrintaj, et al.
Journal of Separation Science, 5(7) (2021)
Gustavo Castro et al.
ISRN ophthalmology, 2013, 752161-752161 (2014-02-22)
Purpose. The purpose of this work was to evaluate the retinal integration and differentiation of neurospheres formed by stem cells and mouse neural progenitor cells injected intravitreally in mice eyes with retinal injury. Methods. Eight male C57BL mice, 8 weeks
Sonja Stadler et al.
BMC cell biology, 5(1), 44-44 (2004-11-24)
Between cell divisions the chromatin fiber of each chromosome is restricted to a subvolume of the interphase cell nucleus called chromosome territory. The internal organization of these chromosome territories is still largely unknown. We compared the large-scale chromatin structure of
Direct addition of poly-lysine or poly-ethylenimine to the medium: A simple alternative to plate pre-coating
Alexander Faussner, et al.
PLoS ONE, 17(7) (2022)
Poly-L-lysine Prevents Senescence and Augments Growth in Culturing Mesenchymal Stem Cells Ex Vivo
June Seok Heo, et al.
BioMed Research International (2016)
View All Related Papers

Articles

Poly-lysine Types for Biomedical Applications

Poly-Lysine enhances cell binding with positively-charged surface ions, optimizing electrostatic interaction on culture surfaces for increased cell attachment.

Extracellular Matrix Proteins and Tools for Cell Culture Optimization

Extracellular matrix proteins such as laminin, collagen, and fibronectin can be used as cell attachment substrates in cell culture.

Cancer Stem Cells: Targets for Cancer Therapy

Cancer stem cell media, spheroid plates and cancer stem cell markers to culture and characterize CSC populations.

Protocols

Poly-L-Lysine Cell Attachment Protocol

Adhere cells to solid substrates using poly-lysine, which enhances electrostatic interaction between negatively charged ions of the cell membrane and the culture surface.

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