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Merck
CN

L7920

β-Lactamase Blend

recombinant, expressed in E. coli

Synonym(s):

Carbapenemase, Cephalosprinase

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About This Item

EC Number:
NACRES:
NA.54
UNSPSC Code:
12352204
Recombinant:
expressed in E. coli
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recombinant

expressed in E. coli

Quality Level

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.


pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

Resp. Sens. 1 - Skin Sens. 1

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

常规特殊物品

This item has



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Lisa M Miller et al.
ACS applied materials & interfaces, 11(36), 32599-32604 (2019-08-27)
Antimicrobial resistance (AMR) has been identified as a major threat to public health worldwide. To ensure appropriate use of existing antibiotics, rapid and reliable tests of AMR are necessary. One of the most common and clinically important forms of bacterial
Mechanisms and Detection of Antimicrobial Resistance
Principles and Practice of Pediatric Infectious Diseases (Fourth Edition), 1467-1478 (2017)
Identification and screening of carbapenemase-producing Enterobacteriaceae
Nordmann P, et al.
Clinical Microbiology and Infection : the Official Publication of the European Society of Clinical Microbiology and Infectious Diseases, 18(5), 432-438 (2012)



Global Trade Item Number

SKUGTIN
L7920-1VL04061838114013