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Merck
CN

A7550

Achromopeptidase from Achromobacter lyticus

lyophilized powder, Protein ~5 % by biuret, 300-600 units/mg solid

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About This Item

CAS Number:
UNSPSC Code:
12352204
MDL number:
EC Number:
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form

lyophilized powder

specific activity

300-600 units/mg solid

composition

Protein, ~5% biuret

foreign activity

Collagenase, present

storage temp.

−20°C

Biochem/physiol Actions

Achromopeptidase is a lysyl endopeptidase with a MW of ~27 kDa. It is useful for lysis of Gram-positive bacteria that are resistant to lysozyme.
pH Optimum for activity: pH 8.5 - 9
Approximately 500-1,500 un/ml achromopetidase can be used to lyse cells at a density of OD600=0.6 over 2 hours at 37 °C.

Physical form

Crude powder containing salts and medium components

Other Notes

One unit will produce a change in A600 of 0.001 per minute per mL at pH 8.0 at 37 °C using a suspension of Micrococcus lysodeikticus as substrate (1 cm light path).


pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

Resp. Sens. 1

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Regulatory Information

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Niamh Toomey et al.
Applied and environmental microbiology, 75(10), 3146-3152 (2009-03-10)
Three wild-type dairy isolates of lactic acid bacteria (LAB) and one Lactococcus lactis control strain were analyzed for their ability to transfer antibiotic resistance determinants (plasmid or transposon located) to two LAB recipients using both in vitro methods and in
Beatrice Quevedo et al.
BMC microbiology, 11, 14-14 (2011-01-21)
The purpose of this study was to design and evaluate fluorescent in situ hybridization (FISH) probes for the single-cell detection and enumeration of lactic acid bacteria, in particular organisms belonging to the major phylogenetic groups and species of oral lactobacilli
B W Elliott et al.
The Journal of biological chemistry, 261(24), 11259-11265 (1986-08-25)
We report here a procedure which results in the purification of an extracellular protease (designated Ps-1) from Pseudomonas aeruginosa. This enzyme cleaves fibrinogen so that the modified molecules form microcrystals and large single crystals. Precise knowledge of the Ps-1 cleavage