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P2658

Sigma-Aldrich

Poly-L-lysine hydrochloride

suitable for cell culture, Mol wt 15,000-30,000

Synonym(s):

L-Lysine hydrochloride homopolymer

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About This Item

CAS Number:
26124-78-7
MDL number:
MFCD00081870
UNSPSC Code:
12352209
eCl@ss:
32160406
NACRES:
NA.26
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Product Name

Poly-L-lysine hydrochloride, mol wt 15,000-30,000

form

powder or solid

mol wt

15,000-30,000

technique(s)

cell culture | mammalian: suitable

color

white to light yellow

application(s)

cell analysis

storage temp.

−20°C

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Application

Poly-L-lysine hydrochloride has been used to coat glass slides and coverslips to facilitate cell attachment.[1][2]
Poly-lysine with mol. wt. >70,000 is useful in promoting cell adhesion to solid substrates.

Biochem/physiol Actions

L-Lysine is believed to prevent osteoporosis of bones, which is a characteristics of vascular calcification.[3] Glutaric aciduria type I and pyridoxine-dependent epilepsy occurs due to lack of L-lysine catabolic pathway.[4] Lysine participates in the regulation of NO (nitric oxide) synthesis. It possesses antiviral activity, therefore it is used in the treatment of Herpes simplex. L-Lysine is associated with a number of biochemical reactions such as acetylation, O-linked glycosylation, ubiquitination and protein methylation.[5] Poly-L-lysine is considered as a biocompatible polymer and serves for the purpose of drug delivery across cell membrane. It is useful as one of the nanosized contrast agents in MRI (magnetic resonance imaging).[6]

Analysis Note

Molecular weight based on viscosity.

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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Certificates of Analysis (COA)

Lot/Batch Number
0000373025
0000374879
0000374882
0000373026
0000360230

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Mahesh Sahare et al.
Reproduction, fertility, and development, 28(12), 2039-2050 (2015-07-17)
Spermatogonial stem cells (SSCs) are unipotent in nature, but mouse SSCs acquire pluripotency under the appropriate culture conditions. Although culture systems are available for rodent and human germ-cell lines, no proven culture system is yet available for livestock species. Here
Archishman Ghosh et al.
Proceedings of the National Academy of Sciences of the United States of America, 116(39), 19474-19483 (2019-09-12)
Membraneless organelles, corresponding to the droplet phase upon liquid-liquid phase separation (LLPS) of protein or protein-RNA mixtures, mediate myriad cellular functions. Cells use a variety of biochemical signals such as expression level and posttranslational modification to regulate droplet formation and
The role of signaling pathways on proliferation and self-renewal of cultured bovine primitive germ cells
Sahare Mahesh
Reproductive medicine and biology, 14(1) (2015)
Primary culture of neural precursors from the ovine central nervous system (CNS)
A. H. Duitozz and T. Hevor
Journal of Neuroscience Methods, 131-140 (2001)
Multi-technique characterization of poly-L-lysine dendrigrafts-Cu(II) complexes for biocatalysis.
Rossi JC
Macromolecular Bioscience, 15(2), 275-290 (2015)
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Questions

1–3 of 3 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  3. Hello, can you confirm the chemical nature of the termini of this polymer? Is it -NH2 and -COOH? or -NCH3 and -COCH3?

    1 answer

    1. The carboxyl end of this material has a free -COOH and the amino end has a free -NH2.

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