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Merck
CN

P9155

Poly-ʟ-Lysine Hydrobromide

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

Synonym(s):

PLL 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:
24899014
NACRES:
NA.75

Key Documents

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Product Name

Poly-L-lysine hydrobromide, mol wt 30,000-70,000, 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

30,000-70,000

packaging

pkg of 5 mg

technique(s)

cell culture | mammalian: suitable

surface coverage

4 μg/cm2

solubility

H2O: soluble 50 mg/mL, clear, colorless

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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General description

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.

Biochem/physiol Actions

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.

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.
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.

Disclaimer

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000316152
0000316152
SLCN5981
SLCM0907
SLCC4044

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Trial evaluation of bone marrow derived mesenchymal stem cells (MSCs) transplantation in revival of spermatogenesis in testicular torsion
Sabbaghi MA, et al.
Middle East Fertility Society journal, 17(4), 243-249 (2012)
Polylysine for skin regeneration: A review of recent advances and future perspectives
Payam Zarrintaj, et al.
Journal of Separation Science, 7(1) (2021)
Inhibition of endothelial cell survival and angiogenesis by protein kinase A
Kim S, et al.
The Journal of Clinical Investigation (2002)
Poly-L-lysine Prevents Senescence and Augments Growth in Culturing Mesenchymal Stem Cells Ex Vivo
June Seok Heo, et al,
BioMed Research International (2016)
Pre-B-cell colony-enhancing factor exerts a neuronal protection through its enzymatic activity and the reduction of mitochondrial dysfunction in in vitro ischemic models
Bi J, et al.
Journal of Neurochemistry, 120(2), 334-346 (2012)
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Articles

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.

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.

Cancer Stem Cells: Targets for Cancer Therapy

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

细胞外基质蛋白质和细胞培养优化工具

细胞外基质蛋白质，如层粘连蛋白、胶原蛋白和纤连蛋白，可用作细胞培养中的细胞附着基底。

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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.

多聚-L-赖氨酸细胞附着实验方案

使用多聚-赖氨酸将细胞粘附在固相基质上，多聚-赖氨酸可增强细胞膜表面的负电荷离子与培养表面之间的静电相互作用。

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