Aprotinin from bovine lung , 3-8TIU/mg , 9087-70-1

Synonym(s):
Aprotinin from bovine lung;Trasylol;Trypsin inhibitor (basic);trypsin inhibitor, pancreas type (bpti);trypsin-kallikrein inhibitor

CAS NO.：9087-70-1

Empirical Formula: C284H432N84O78R2S7

Molecular Weight: 6495.44

MDL number: MFCD00130541

EINECS: 232-994-9

PRODUCT Properties

• Melting point: >234oC (dec.)
• storage temp.: 2-8°C
• solubility: glycerol: soluble3mg/mL, clear, colorless (equilibration buffer containing 5% glycerol)
• form: lyophilized powder
• color: white
• Water Solubility: Freely soluble in water and in aqueous buffers of low ionic strength.
• Merck: 13,761
• Sequence: H-Pro-Asp-Phe-Cys-Leu-Glu-Pro-Pro-Tyr-Thr-Gly-Pro-Cys-Lys-Ala-Arg-Ile-Ile-Arg-Tyr-Phe-Tyr-Asn-Ala-Lys-Ala-Gly-Leu-Cys-Gln-Thr-Phe-Val-Tyr-Gly-Gly-Cys-Arg-Ala-Lys-Arg-Asn-Asn-Phe-Lys-Ser-Ala-Glu-Asp-Cys-Met-Arg-Thr-Cys-Gly-Gly-Ala-OH
• Stability: Stable. Incompatible with strong oxidizing agents.
• InChIKey: RWLBZZCCAZDWSE-BNRYNCRGNA-N

Description and Uses

Aprotinin is a reversible inhibitor of serine proteases such as trypsin (K_i = 0.06 pM), chymotrypsin (K_i = 9.5 nM), and kallikrein (K_i = 0.8 nM). It is a much weaker inhibitor of thrombin (K_i = 0.1-0.8 mM) and trypsinogen (K_i = 2 μM). Aprotinin also competitively inhibits nNOS and iNOS with K_i values of 50 and 78 μM, respectively. Aprotinin is widely used as a protein purification tool to prevent proteases present in tissue samples from degrading the protein of interest.

A potent protease inhibitor.Aprotinin acts as a reversible serine protease blocking and a binding agent. It is widely employed as an inhibitor of trypsin. It is also used as a proteolytic inhibitor in radioimmunoassays of polypeptide hormones. It is involved in the purification of urokinase, trypsin, and chymotrypsin on immobilized aprotinin. Further, it is used in the quantification of kallikrein activity in mixtures of esterases and proteases.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P271-P280
• Hazard Codes: Xn,Xi
• Risk Statements: 42/43-36/37/38-20/21/22
• Safety Statements: 22-45-36/37-36-26
• WGK Germany: 1
• RTECS: YN5080000
• F: 10-21
• HS Code: 35040000
• Toxicity: LD50 i.v. in mice: 2500000 kallikrein inhibitor units/kg (Trautschold)