E1250

Elastase from porcine pancreas

Type I, ≥4.0 units/mg protein

• Synonim(y): Elastase from hog pancreas, Pancreatopeptidase E
• Numer CAS: 39445-21-1
• UNSPSC Code: 12352204
• NACRES: NA.54
• EC Number: 254-453-6
• MDL number: MFCD00130998
• Numer WE: 3.4.21.36 (BRENDA, IUBMB)
• Specific activity: ≥4.0 units/mg protein
• Biological source: Porcine pancreas
• Concentration: 0.5-15.0 mg/mL in water

Właściwości

• biological source: Porcine pancreas
• Quality Segment: 200
• type: Type I
• form: suspension
• specific activity: ≥4.0 units/mg protein
• mol wt: 25.9 kDa
• contains: 0.1% thymol
• concentration: 0.5-15.0 mg/mL in water
• foreign activity: trypsin ≤50 BAEE units/mg protein
• storage temp.: 2-8°C

Opis

Application

Elastase from porcine pancreas has been used:

• to induce abdominal aortic aneurysm (AAA)
• to study the impact of indoleamine 2-3 dioxygenase 1 (IDO) in mice
• to digest aortas for aortic smooth muscle cells (SMC) isolation
• as a positive control of proteolytic digestion

The enzyme from Sigma has been used in the development of elastase-perfused animal model . This study determined if tobacco exposure could lower the threshold of aortic injury necessary for AAA (abdominal aortic aneurysm) development. It has also been used during the isolation of type II pneumocytes from human lungs.

Elastase from porcine pancreas has been used in a study to investigate the design, synthesis and evaluation of biomimetic affinity ligands for elastases. Elastase from porcine pancreas has also been used in a study to investigate the purification and partial characterization of the pancreatic proteolytic enzymes trypsin, chymotrypsin, and elastase.

Biochem/physiol Actions

Elastase hydrolyses elastin, the specific protein of elastic fibers, and digests hemoglobin, casein and fibrin.

Elastase is a single polypeptide chain of 240 amino acid residues and contains four disulfide bridges. The molecular mass is approximately 25.9 kDa. The enzyme is synthesized as an inactive zymogen, proelastase, which is converted to the active form by limited proteolysis at the N-terminal by trypsin. It is a serine protease with broad specificity. It cleaves protein at the carboxyl side of small hydrophobic amino acids such as Ile, Gly, Ala, Ser, Val, and Leu. The enzyme also hydrolyzes amides and esters such as N-Benzoyl-L-alanine methyl ester. The pH optimum is found to be 8.0-8.5. It does not require any activator, but it is inhibited by diisopropyl fluorophosphate, phenylmethanesulfonyl fluoride, α2-macroglobulin, α1-antitrypsin, sulfonyl fluorides and p-dinitrophenyl diethylphosphate and high salt concentrations. It is extensively used in tissue and cell dissociation procedures. Elastase is effective in the isolation of Type II lung cells.

Packaging

Package size based on protein content

Preparation Note

2× crystallized

Other Notes

One unit will hydrolyze 1.0 μmole of N-succinyl-L-Ala-Ala-Ala-p-nitroanilide per min, pH 8.0 at 25 °C.

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Informacja o środkach bezpieczeństwa

• pictograms: GHS08,GHS07
• signalword: Danger
• hcodes: H315,H319,H334,H335
• pcodes: 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
• Klasa składowania: 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