Aprotinin

Aprotinin

Synonyms Antagosan; Anikrein; Antilysin(e); Basic pancreatic trypsin inhibitor; BPTI; Bayer A 128; Kallikrein-trypsin inactivator; Fosten; Iniprol; Kunitz protease inhibitor; Onquinin; Repulson; RP-9921; Ryker 52G; Trasylol; Triazinin; Zymofren

CAS Number: 9087-70-1 Molecular Formula: C284H432N84O79S7 Molecular Weight: 6511.509 g/mol

EC Number: 232-994-9 MDL Number: MFCD00130541

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SKU 02194101-CF
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Description

Product Description

Aprotinin

Application Notes

Aprotinin is used as a proteolytic inhibitor in radioimmunoassays of polypeptide hormones. Small amounts of aprotinin can be added to tubes of drawn blood to enable laboratory measurement of rapidly degraded proteins such as glucagon. It can be labelled with fluorescein isothiocyanate. The conjugate retains its antiproteolytic and carbohydrate-binding properties and has been used as a fluorescent histochemical reagent for staining glycoconjugates (mucosubstances) that are rich in uronic or sialic acids. In cell biology aprotinin is used as an enzyme inhibitor to prevent protein degradation during lysis or homogenization of cells and tissues.

Usage Statement

Research Use Only (RUO). Ready for CE IVD labeling of clinical applications.

Key Applications

Inhibitor||Stain

Specifications
SKU 02194101-CF
Alternate Names Antagosan; Anikrein; Antilysin(e); Basic pancreatic trypsin inhibitor; BPTI; Bayer A 128; Kallikrein-trypsin inactivator; Fosten; Iniprol; Kunitz protease inhibitor; Onquinin; Repulson; RP-9921; Ryker 52G; Trasylol; Triazinin; Zymofren
Application Notes Aprotinin is used as a proteolytic inhibitor in radioimmunoassays of polypeptide hormones. Small amounts of aprotinin can be added to tubes of drawn blood to enable laboratory measurement of rapidly degraded proteins such as glucagon. It can be labelled with fluorescein isothiocyanate. The conjugate retains its antiproteolytic and carbohydrate-binding properties and has been used as a fluorescent histochemical reagent for staining glycoconjugates (mucosubstances) that are rich in uronic or sialic acids. In cell biology aprotinin is used as an enzyme inhibitor to prevent protein degradation during lysis or homogenization of cells and tissues.
Biochemical Physiological Actions Aprotinin is a competitive serine protease inhibitor that inhibits trypsin, chymotrypsin, kallikrein and plasmin. Aprotinin forms stable complexes with and blocks the active sites of enzymes. Binding is reversible with most aprotinin-protease complexes dissociating at pH >10 or < 3. Effective concentration equimolar with protease.
EC Number 232-994-9
Extinction Coefficient (280 nm) = 8.3 (water)
Hazard Statements H302-H333
Isoelectric Point 10.5
Applications Inhibitor||Stain
MDL # MFCD00130541
Melting Point >100 °C
Molecular Formula C284H432N84O79S7
Molecular Weight 6511.509 g/mol
Personal Protective Equipment Eyeshields, Gloves,respirator filter
Physical Appearance White Powder
Product Families Description Aprotinin
Product Overview Aprotinin
RTECS Number YN5080000
Source Bovine Lung
Specific Activity ≥3 TIU/mg
Storage and Handling Store at +4 °C.
Typical Working Concentration Equimolar with protease (1-2 ug/ml).
Unit Definition One trypsin inhibitor unit (TIU), which is equal to 900 kallikrein inhibitor units (KIU) and 8,800 Schwert and Takenake units (STU), is the amount of inhibitor per mg which hydrolyzes one μmole of benzoyl-DL-arginine-p-nitroanilide (BAPNA) per minute. One TIU reduces the activity of two trypsin units by 50%.
Usage Statement Research Use Only (RUO). Ready for CE IVD labeling of clinical applications.
UV Visible Absorbance λ max (water) - 277 ± 5 nm