L5006

Leucine Aminopeptidase, microsomal from porcine kidney

Type IV-S, ammonium sulfate suspension, 10-40 units/mg protein (Bradford)

• Synonym(s): Aminopeptidase M, Aminopeptidase N, Cathepsin III, LAP, Leucinamide aminopeptidase, Leucinaminopeptidase
• CAS Number: 9054-63-1
• Enzyme Commission number: 3.4.11.2 (BRENDA, IUBMB)
• EC Number: 232-942-5
• MDL number: MFCD00131501
• UNSPSC Code: 12352204
• NACRES: NA.54

Properties

• type: Type IV-S
• Quality Level: 200
• form: ammonium sulfate suspension
• specific activity: 10-40 units/mg protein (Bradford)
• storage temp.: 2-8°C

Description

General description

Leucine Aminopeptidase belongs to the family of metalloprotease.

Application

Leucine Aminopeptidase, microsomal from porcine kidney has been used in the isolation of neprilysin (NEP) from rodent brain-C5 and for peptide digestion.

Biochem/physiol Actions

Leucine Aminopeptidase possesses broad substrate-specificity. It hydrolyzes peptides up to the proline residue and does not continue to degrade beyond proline.

Unit Definition

One unit will hydrolyze 1.0 μmole of L-leucine-p-nitroanilide to L-leucine and p-nitroaniline per min at pH 7.2 at 37 °C. (At 25 °C, approx. 40% of the activity at 37 °C is obtained.) The activity obtained using L-leucine p-nitroanilide as substrate is 2-5 times that obtained with L-leucinamide as substrate.

Physical form

Suspension in 3.5 M (NH₄)₂SO₄ solution, pH 7.7, containing 10 mM MgCl₂

Safety Information

• Pictograms: GHS07,GHS08
• Signal Word: Danger
• Hazard Statements: H315 - H319 - H334 - H335
• Precautionary Statements: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• 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