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A3886

Sigma-Aldrich

Aprotinin

powder

Synonym(s):

BPTI, Bovine pancreatic trypsin inhibitor, Trasylol, Trypsin inhibitor (basic)

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About This Item

Empirical Formula (Hill Notation):
C284H432N84O79S7
CAS Number:
9087-70-1
Molecular Weight:
6511.44
EC Number:
232-994-9
MDL number:
MFCD00130541
UNSPSC Code:
12352200
NACRES:
NA.77

product name

Aprotinin from bovine lung,

biological source

bovine lung

Quality Level

200

form

powder

mol wt

~6,500

packaging

vial of 15 mg

solubility

glycerol: 3 mg/mL, clear, colorless (equilibration buffer containing 5% glycerol)

UniProt accession no.

P00974

storage temp.

−20°C

InChI key

ZPNFWUPYTFPOJU-UHFFFAOYSA-N

Gene Information

cow ... PTI(404172)

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Application

Aprotinin is largely used as an inhibitor of trypsin.
Gel filtration molecular weight marker

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.

Unit Definition

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-arginine p-nitroanilide per minute at pH 7.8 and 25°C. Another commonly used unit is the KIU, with 1 TIU = 1,300 KIU.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Yimin Yao et al.
International journal of molecular sciences, 23(10) (2022-05-29)
Systemic sclerosis (SSc) is characterised by progressive multiple organ fibrosis leading to morbidity and mortality. Lysyl oxidases play a vital role in the cross-linking of collagens and subsequent build-up of fibrosis in the extracellular matrix. As such, their inhibition provides
Alexander F L Later et al.
The Journal of thoracic and cardiovascular surgery, 145(6), 1611-1616 (2013-01-22)
Anti-inflammatory effects of tranexamic acid and aprotinin, used to abate perioperative blood loss, are reported and might be of substantial clinical relevance. The study of messenger ribonucleic acid synthesis provides a valuable asset in evaluating the inflammatory pathways involved. Whole-blood
Halil Kaya et al.
JPMA. The Journal of the Pakistan Medical Association, 63(1), 32-37 (2013-07-20)
To investigate the effects of aprotinin, on blood gasses, oxidant-antioxidant status, and lung histopathology in an experimental bilateral blunt chest trauma model. Conducted at the Experimental Animal Laboratory of Meram Medical School at Selcuk University, Konya, Turkey, the study comprised
Andrew T Fenley et al.
Proceedings of the National Academy of Sciences of the United States of America, 109(49), 20006-20011 (2012-11-15)
Molecular dynamics simulations of unprecedented duration now can provide new insights into biomolecular mechanisms. Analysis of a 1-ms molecular dynamics simulation of the small protein bovine pancreatic trypsin inhibitor reveals that its main conformations have different thermodynamic profiles and that
A F L Later et al.
Cytokine, 61(2), 438-444 (2012-11-29)
Antifibrinolytics, used in cardiac surgery to abate postoperative blood loss, share anti-inflammatory properties by suppression of pro-inflammatory D-dimer and plasmin levels. Additional drug specific immune modulating qualities are often mentioned in the discussion on which antifibrinolytic can best be used.
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