Direkt zum Inhalt
Merck

Wichtige Dokumente

Gesamtdokumentation anzeigen

Fortfahren mit

L7920

β-Lactamase Blend

recombinant, expressed in E. coli

Synonym(e):

Carbapenemase, Cephalosprinase

Anmelden zur Ansicht der Organisations- und Vertragspreise.

Größe auswählen

Ansicht ändern
Größe/SKUVerfügbarkeitPreis
1 vial
Warenkorb auf Verfügbarkeit prüfen
€ 456,00

Über diesen Artikel

EG-Nummer:
3.5.2.6 (BRENDA, IUBMB)
NACRES:
NA.54
UNSPSC Code:
12352204
Recombinant:
expressed in E. coli

€ 456,00

Warenkorb auf Verfügbarkeit prüfen
​
Technischer Dienst
Benötigen Sie Hilfe? Unser Team von erfahrenen Wissenschaftlern ist für Sie da.
Unterstützung erhalten

recombinant

expressed in E. coli

Quality Segment

200

sterility

γ-irradiated

form

lyophilized powder

storage temp.

2-8°C

General description

No detectable growth in tryptone soy broth at 30-35 °C for 14 days

Biochem/physiol Actions

β-Lactamases exhibit high carbapenemase activity. β-lactamases can destroy the β-lactam ring. True carbapenemases has the ability to hydrolyse several β-lactam ring containing carbapenems like meropenem, doripenem, imipenem and ertapenem.

Physical form

Lyophilized powder containing sodium chloride, potassium phosphate, dipotassium phosphate and sorbitol.

Other Notes

600-1500 IU beta-lactamase I per vial
60-150 IU beta-lactamase II per vial
One unit will hydrolyze 1.0 μmole substrate per min (βI: benzylpenicillin; βII: cephalosporin C) in phosphate buffer, pH 7.0 at 25°C.

Ähnliche Artikel vergleichen

Vollständigen Vergleich anzeigen

Unterschiede anzeigen

1 of 1

Dieser Artikel
L3045P4524L6170
β-Lactamase Blend recombinant, expressed in E. coli

Sigma-Aldrich

L7920

β-Lactamase Blend

β-Lactamase from Pseudomonas fluorescens lyophilized powder, recombinant, expressed in E. coli

Sigma-Aldrich

L3045

β-Lactamase from Pseudomonas fluorescens

β-Lactamase aus Enterobacter cloacae Type IV, lyophilized powder, 0.2-0.6 units/mg protein (using benzylpenicillin)

Sigma-Aldrich

P4524

β-Lactamase aus Enterobacter cloacae

β-Lactamase recombinant, expressed in E. coli

Sigma-Aldrich

L6170

β-Lactamase

description

recombinant, expressed in E. coli

description

lyophilized powder, recombinant, expressed in E. coli

description

Type IV, lyophilized powder, 0.2-0.6 units/mg protein (using benzylpenicillin)

description

recombinant, expressed in E. coli

recombinant

expressed in E. coli

recombinant

expressed in E. coli

recombinant

-

recombinant

expressed in E. coli

form

lyophilized powder

form

lyophilized powder

form

lyophilized powder

form

powder

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

sterility

γ-irradiated

sterility

-

sterility

-

sterility

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H317,H334

Hazard Classifications

Resp. Sens. 1 - Skin Sens. 1

Lagerklasse

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Dokumente section.

Wenn Sie Hilfe benötigen, wenden Sie sich bitte an Kundensupport

Besitzen Sie dieses Produkt bereits?

In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

Questions

1–2 of 2 Questions  

  1. Dear Mr/Ms, I ordered β-Lactamase Blend L7920 and I am interested in knowing the concentration in micrograms per mL. (Micrograms per mL=IU/mL/min×Conversion Factor). Can you please tell me what is the conversion factor? Regards, Glorjen

    1 answer

    1. This product is provided in lyophilized solid form with the unit activity reported in lot specific Certificate of Analysis.

      Using a representative lot, SLCQ2635 as an example, one vial contains 1289 units. The activity can be converted to mass in milligrams using the batch specific activity value of 124 units/mg.

      Thus, a vial from batch (SLCQ2635) contains 10.39 mg of enzyme; 1289 units x (1 mg / 124 unit) = 10.39 mg.

      The volume in mL would be dependent on the volume of solvent added. For example, adding 1 mL of solvent to a vial from this batch, would result in a concentration of 10.39 mg/mL.

      Helpful?

  2. HOW TO DISSOLVE THE VIAL

    1 answer

    1. This product has been sterilized by gamma-irradiaton and can be reconstituted with in 10 mL of deionized purified water, then filter sterilzed through a 0.2 micron low protein binding membrane. If being used for the preparation of agar plates, it should be added to the medium at a temperature of less than 55 deg C. After reconstitution, the solution is stable for 2 months at 2-8 deg C."

      Helpful?

Reviews

No rating value

Active Filters