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S5265

Sigma-Aldrich

Streptolysin O from Streptococcus pyogenes

lyophilized powder, Protein ~3 % by Lowry, 25,000-50,000 U/vial

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About This Item

Número CAS:
98072-47-0
Número CE:
308-500-3
Número MDL:
MFCD00132389
Código UNSPSC:
12352202
NACRES:
NA.85

R$ 1.792,00

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Formulário

lyophilized powder

Nível de qualidade

200

atividade específica

25,000-50,000 U/vial

peso molecular

native 69 kDa

composição

Protein, ~3% Lowry

condição de armazenamento

(Keep container tightly closed in a dry and well-ventilated place. Keep in a dry place.)

cor

white

solubilidade

H2O: soluble 1 mg/mL

espectro de atividade do antibiótico

neoplastics

Modo de ação

cell membrane | interferes

temperatura de armazenamento

2-8°C

Informações sobre genes

Streptococcus pyogenes MGAS8232 ... slo(993428)

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Aplicação

Permeabilizes membranes to permit cellular uptake of large or charged molecules.
Streptolysin O is a toxin secreted by Streptococcus pyogenes and is a prototype member of poreforming bacterial cytolysins. It is used permeabilize cell membranes to permit cellular uptake of large or charged molecules. It is used to study macromolecule delivery[1]. It is a potential anticancer agent and is used to study suicide cancer gene therapy[1].
Used to create holes (reversible pores) in cholesterol-enriched plasma membranes of eukaryotic cells allowing selective permeabilization with molecules such as proteins (up to 100 kDa) and siRNAs.

Ações bioquímicas/fisiológicas

Streptolysin O possesses a single polypeptide chain with a molecular weight of f62 kDa. Streptolysin O binds to membrane cholesterol and oligomerizes to create a ring structure that consists of 45 to 50 units. The ring structure inserts into the membrane to make a large pore (25 to 30 nm), which DNA, RNA, peptides and proteins may pass[1]. It is thiol-activated. It is inhibited by allicin, an active component of garlic[2].
Thiol-activated toxin that permeabilizes animal cell membranes. The protein binds as a monomer to membrane cholesterol and subsequently polymerizes into large arc- and ring-shaped structures surrounding pores of >12 nm.
Thiol-activated toxin that permeabilizes animal cell membranes..

Embalagem

25KU

Definição da unidade

One unit will cause 50% lysis of 2% red blood cell suspensions in phosphate buffered saline, pH 7.4, after incubation at 37 °C for 30 min.

forma física

Lyophilized powder containing Tris buffer salts, sodium azide, PMSF, and EDTA.

Outras notas

Keep container tightly closed in a dry and well-ventilated place. Keep in a dry place

Palavra indicadora

Danger

Classificações de perigo

Acute Tox. 2 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Skin Irrit. 2

Código de classe de armazenamento

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)

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Certificados de análise (COA)

Lot/Batch Number
0000404460
0000404460
0000192753
078M4091V
11180415

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We cloned the streptolysin O gene from the Streptococcus pyogenes genome and tested the possibility of using it as an anticancer reagent. Transient transfection of the streptolysin O gene efficiently killed 293T cells after 12 hours of transfection as determined
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Questions

1–2 of 2 Questions  

  1. 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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  2. 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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