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P5899

Sigma-Aldrich

Poly-L-lysine hydrobromide

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

Synonym(s):
PDL HBr
CAS Number:
MDL number:
eCl@ss:
32160406
PubChem Substance ID:

biological source

synthetic (organic)

Quality Level

sterility

γ-irradiated

product line

BioXtra

form

lyophilized powder

mol wt

≥300,000

packaging

pkg of 5 mg

technique(s)

cell culture | mammalian: suitable

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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This Item
P6282P6407P4832
Sigma-Aldrich

Sigma-Aldrich

P4832

Poly-L-lysine solution

sterility

γ-irradiated

sterility

γ-irradiated

sterility

γ-irradiated

sterility

sterile-filtered

form

lyophilized powder

form

lyophilized powder

form

lyophilized powder

form

solution

mol wt

≥300,000

mol wt

70,000-150,000

mol wt

70,000-150,000

mol wt

150,000-300,000

packaging

pkg of 5 mg

packaging

pkg of 5 mg

packaging

pkg of 10 X 5 mg, pkg of 5 mg

packaging

pkg of 50 mL

technique(s)

cell culture | mammalian: suitable

technique(s)

cell culture | mammalian: suitable

technique(s)

cell culture | mammalian: suitable

technique(s)

cell culture | mammalian: suitable

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.

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 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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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
Skye E Smith et al.
eNeuro, 7(4) (2020-08-02)
Aberrant migration of inhibitory interneurons can alter the formation of cortical circuitry and lead to severe neurologic disorders including epilepsy, autism, and schizophrenia. However, mechanisms involved in directing the migration of interneurons remain incompletely understood. Using a mouse model, we
Stuart B Mazzone et al.
Molecular neurobiology, 57(2), 949-963 (2019-10-21)
Bronchopulmonary sensory neurons are derived from the vagal sensory ganglia and are essential for monitoring the physical and chemical environment of the airways and lungs. Subtypes are heterogenous in their responsiveness to stimuli, phenotype, and developmental origin, but they collectively
Shuhei Ishikura et al.
Nucleic acids research, 48(19), 10848-10866 (2020-10-01)
Centromeres are genomic regions essential for faithful chromosome segregation. Transcription of noncoding RNA (ncRNA) at centromeres is important for their formation and functions. Here, we report the molecular mechanism by which the transcriptional regulator ZFAT controls the centromeric ncRNA transcription

Articles

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

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.

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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