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Thermo Scientific™ LAP Disk

Catalog No. R21129
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Quantity:
25 Disks/Vial
This item is not returnable. View return policy
This item is not returnable. View return policy

Description

Rapidly detect leucine aminopeptidase activity in streptococci and related genera with this ready-to-use, LAP-impregnated disk.

Detect leucine aminopeptidase activity in streptococci and related genera with Thermo Scientific™ Remel™ LAP Disk.

Collman and Ball investigated the use of leucine aminopeptidase (LAP) that helped to identify Gram-positive cocci1. Further, Fertally and Facklam2 used LAP to identify Streptococcus spp. They found that Aerococcus is a consistent negative strain for LAP whereas Enterococcus and Streptococcus are positive strains. LAP also helps in identification of Leuconostoc, Pediococcus, Aerococcus and related genera3.

Activity of the enzyme leucine aminopeptidase can help in identifying streptococci and related genera using the LAP Disk.

  • Ready to use: Reagent-impregnated disk. No further preparation necessary.
  • Easy to read: Visible color change indicates positive and negative test.
    Positive test: Color change from pink to red.
    Negative test: No color change.

The LAP Disk contains L-leucine-β-naphthylamide as substrate that is hydrolyzed by leucine aminopeptidase and releases β-naphthylamide. A positive test is indicated when the color of the disk changes from white to pink to red when ρ-dimethyl-aminocinnamaldehyde (PYR Reagent) is added.

Not all products are available for sale in all territories. Please inquire.

Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.

TRUSTED_SUSTAINABILITY

Specifications

Content And Storage 2°C to 8°C
Description LAP Disk
Detectable Analytes Leucine Aminopeptidase (Streptococci)
Format Vial
Quantity 25 Disks/Vial
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