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Merck
CN

M2570

Sigma-Aldrich

L-Methionine γ-Lyase

≥0.2 unit/mg solid

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About This Item

EC Number:
MDL number:
UNSPSC Code:
12352204
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recombinant

expressed in E. coli

form

lyophilized powder

specific activity

≥0.2 unit/mg solid

storage temp.

−20°C

General description

L-Methionine γ-lyase is a pyridoxal phosphate-containing enzyme that converts L-methionine to α-ketobutyrate, ammonia and methyl mercaptan.

Application

L-Methionine γ-lyase has been used in a study to assess catabolism of volatile sulfur compound precursors by Brevibacterium linens and Geotrichum candidum. It has also been used in a study to investigate the enzymatic processing of fluorinated methionine analogs.

Biochem/physiol Actions

L-Methionine γ-Lyase or methioninase has been shown to have anti-tumor effects by depleting methionine from methionine-dependent tumors making them more sensitive to traditional chemotherapies.

Physical form

Supplied as a lyophilized powder containing pyridoxal-5′-phosphate and potassium phosphate

Preparation Note

Expressed in E. coli from a proprietary gene

Other Notes

One unit iwill convert 1 micromole of L-methionine to 2-ketobutyrate per minute at pH 7.0 at 37 °C.

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Resp. Sens. 1

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

Regulatory Information

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Xinghua Sun et al.
Cancer research, 63(23), 8377-8383 (2003-12-18)
Recombinant methioninase (rMETase) is an enzyme active in preclinical mouse models of human cancer. The efficacy of rMETase is due to depletion of plasma methionine, an amino acid for which tumors generally have an abnormally high methionine requirement. Furthermore, transient
Microdetermination of D-amino acids and D-amino acid oxidase activity with 3,methyl-2-benzothiazolone hydrazone hydrochloride.
K Soda
Analytical biochemistry, 25(1), 228-235 (1968-10-24)
Marie-Pierre Forquin et al.
Applied and environmental microbiology, 77(4), 1449-1459 (2010-12-21)
In this study, we combined metabolic reconstruction, growth assays, and metabolome and transcriptome analyses to obtain a global view of the sulfur metabolic network and of the response to sulfur availability in Brevibacterium aurantiacum. In agreement with the growth of
X Xu et al.
Journal of dental research, 89(11), 1304-1308 (2010-09-23)
Epigallocatechin gallate (EGCg), the main antimicrobial tea catechin, has been reported to inhibit growth and virulence factors of oral pathogens in vitro. Although the mechanism is unclear, the potential of EGCg in reducing halitosis caused by volatile sulfur compounds (VSCs)
Luca Ronda et al.
Biochimica et biophysica acta, 1814(6), 834-842 (2010-07-06)
Pyridoxal 5'-phosphate (PLP) dependent methionine γ-lyase catalyzes the breakdown of L-methionine to α-ketobutyric acid, methanethiol and ammonia. This enzyme, present in anaerobic microorganisms, has biomedical interest both for its activity as antitumor agent, depleting methionine supply in methionine-dependent cancers, and

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