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Merck
모든 사진(5)

Key Documents

P0296

Sigma-Aldrich

Poly-D-lysine hydrobromide

suitable for cell culture, Mol wt 1,000-5,000

동의어(들):

D-Lysine homopolymer hydrobromide

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About This Item

Linear Formula:
D-Lys-(D-Lys)n-D-Lys · xHBr
CAS Number:
MDL number:
UNSPSC 코드:
12352209
PubChem Substance ID:
NACRES:
NA.26

product name

Poly-D-lysine hydrobromide, mol wt 1,000-5,000

형태

powder or solid

분자량

1,000-5,000

기술

cell culture | mammalian: suitable

색상

white to faint yellow

저장 온도

−20°C

SMILES string

O=C(C)[C@@](NC)([H])CCCCN.[Br]

InChI

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

InChI key

MEXAGTSTSPYCEP-UHFFFAOYSA-N

유사한 제품을 찾으십니까? 방문 제품 비교 안내

애플리케이션

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.

생화학적/생리학적 작용

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.

성분

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 ß structure because the HBr interferes with hydrogen bonding between amino and either the carboxyl groups or N or O containing moieties.

주의사항

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

분석 메모

This product has a molecular weight of 1,000-4,000. 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.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

Eyeshields, Gloves, type N95 (US)


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Humankind has utilized protein materials throughout its existence, starting with the use of materials such as wool and silk for warmth and protection from the elements and continuing with the use of recombinant DNA techniques to synthesize proteins with unique and useful properties.

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