E1250
Elastase from porcine pancreas
Type I, ≥4.0 units/mg protein
Synonym(s):
Elastase from hog pancreas, Pancreatopeptidase E
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About This Item
CAS Number:
EC Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54
biological source
Porcine pancreas
Quality Level
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
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Application
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.
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.
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.
Signal Word
Danger
Hazard Statements
Precautionary Statements
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
Regulatory Information
动植物源性产品
低风险生物材料
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Indoleamine 2 3-dioxygenase knockout limits angiotensin II-induced aneurysm in low density lipoprotein receptor-deficient mice fed with high fat diet
Metghalchi S, et al.
PLoS ONE, 13(3), e0193737-e0193737 (2018)
Liren Duan et al.
Frontiers in physiology, 11, 866-866 (2020-08-09)
Aim: Smoking is a major risk factor for abdominal aortic aneurysm (AAA). Among the components of smoke, nicotine is known to exert pro-atherosclerotic, prothrombotic, and proangiogenic effects on vascular smooth muscle cells (VSMCs). The current study was designed to investigate
A C Cunningham et al.
Journal of cell science, 107 ( Pt 2), 443-449 (1994-02-01)
Highly purified populations of alveolar epithelial cells (type II pneumocytes) were isolated from human lung specimens. These cells were characterised histochemically, by demonstrating the presence of intracellular alkaline phosphatase, and morphologically, by electron microscopic demonstration of lamellar bodies and microvilli.
Demetrios Moris et al.
Current vascular pharmacology, 16(2), 168-178 (2017-02-06)
Abdominal aortic aneurysm (AAA) formation is associated with by inflammation and matrix degradation. This study tested the hypothesis that calprotectin, a novel biomarker for inflammation, as well as established biomarkers such as C-reactive protein (CRP) and matrix metalloproteinase- 9 (MMP-9)
Júlia Benini Kohler et al.
Biology open, 8(4) (2019-04-12)
Macrophages play a pivotal role in the development of emphysema and depending on the microenvironment stimuli can be polarized into M1- or M2-like macrophage phenotypes. We compared macrophage polarizations in cigarette smoke (CS)- and porcine pancreatic elastase (PPE)-induced emphysema models.
Protocols
Enzymatic Assay of Elastase (EC 3.4.21.36), a continuous spectrophotometric rate determination.
Chromatograms
application for HPLC
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