E0258

Elastase from porcine pancreas

Type IV, Protein 50-90 %, lyophilized powder, ≥4.0 units/mg protein (biuret)

• 동의어(들): Elastase from hog pancreas, Pancreatopeptidase E
• CAS Number: 39445-21-1
• 효소 위원회 번호: 3.4.21.36 (BRENDA, IUBMB)
• EC Number: 254-453-6
• MDL number: MFCD00130998
• UNSPSC 코드: 12352204
• NACRES: NA.54

속성

• 생물학적 소스: Porcine pancreas
• Quality Level: 200
• 유형: Type IV
• 형태: lyophilized powder
• 특이 활성도: ≥4.0 units/mg protein (biuret)
• 구성: Protein, 50-90%
• 외래 활성: trypsin ≤50 BAEE units/mg protein
• 저장 온도: −20°C

설명

일반 설명

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.

애플리케이션

Elastase from Sigma has been used to examine the extent of proteolytic degradation of BSA that is treated with hydroxyl radical. It has also been used to purify elastase-inhibitory lipid derivative from a cyanobacterium, Microcystis Ku2.

Elastase from porcine pancreas has been used in a study to assess the molecular bases for human leucocyte elastase inhibition. Elastase from porcine pancreas has also been used in a study to investigate the molecular cloning and expression of serum calcium-decreasing factor (caldecrin).

Elastase from porcine pancreas has been used:

• to treat vero cells to study its effects on syncytium formation
• as a positive control in protease assays
• as a component in RPMI 1640 to isolate human aortic smooth muscle cells (HASMCs) from the aortic tissue

생화학적/생리학적 작용

Elastase is a serine protease with broad specificity as 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. Elastase hydrolyses elastin, the specific protein of elastic fibers, and digests hemoglobin, casein and fibrin.

Elastase is a serine protease with broad specificity as 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.

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

포장

Package size based on protein content

단위 정의

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

물리적 형태

Contains sodium carbonate.

제조 메모

A further purification of Type III, E 0127, by affinity chromatography to reduce trypsin activity

안전성 정보

• 픽토그램: GHS08,GHS07
• 신호어: Danger
• 유해 및 위험 성명서: H315,H319,H334,H335
• 예방조치 성명서: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
• 표적 기관: Respiratory system
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable