Aprotinin from bovine lung
SIGMA/A3428 - lyophilized powder, 3-8 TIU/mg solid, BioReagent, suitable for cell culture
Synonym: BPTI; Bovine pancreatic trypsin inhibitor; Trasylol; Trypsin inhibitor (basic)
CAS Number: 9087-70-1
Empirical Formula (Hill Notation): C284H432N84O79S7
Molecular Weight: 6511.44
EC Number: 232-994-9
MDL Number: MFCD00130541
Linear Formula: C284H432N84O79S7
Product Type: Chemical
| biological source | bovine lung |
| form | lyophilized powder |
| InChI key | ZPNFWUPYTFPOJU-UHFFFAOYSA |
| mol wt | ~6,500 |
| product line | BioReagent |
| Quality Level | 200 ![]() |
| SMILES string | S1SCC2NC(=O)CNC(=O)CNC(=O |
| solubility | H2O: 5 mg/mL |
| specific activity | 3-8 TIU/mg solid |
| storage temp. | 2-8°C |
| technique(s) | cell culture | mammalian: suitable |
| UniProt accession no. | P00974 ![]() |
| Application: | Aprotinin from bovine lung has been used in insulin and glucagon-like peptide-1 assay. It has also been used a in western blotting. |
| Application: | Aprotinin is largely used as an inhibitor of trypsin. |
| Biochem/physiol Actions: | Aprotinin is a competitive serine protease inhibitor that forms stable complexes with and blocks the active sites of enzyme. This binding is reversible, and most aprotinin-protease complexes will dissociate at extreme pH levels >10 or <3. Structurally, Aprotinin is a monomeric globular protein derived from bovine lung that consists of 58 amino acids, arranged in a single polypeptide chain with three crosslinking disulfide bridges. |
| Biochem/physiol Actions: | Aprotinin is a natural polypeptide of 58 amino acids. It possesses hemostatic/antiplasmin action and helps to reduce bleeding during surgeries. This prevents the necessity of blood transfusion. |
| Other Notes: | One Trypsin Inhibitor Unit (TIU) will decrease the activity of two trypsin units by 50%, where one trypsin unit will hydrolyze 1.0 μmole of N-alpha-benzoyl-DL-argini |
| Other Notes: | When benzoyl- |
| Packaging: | 10, 25 mg in poly bottle |
| Packaging: | 100, 250 mg in glass bottle |
| Preparation Note: | This product is a lyophilized powder that has been cell culture tested. It has an activity of 3-7 TIU/mg. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| activity | specific activity: 3-8 TIU/mg solid |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352200 |

