Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Query: EC:3.4.22.32 (
bromelain
)
1,025
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
A kininogen-like protein was purified from Bothrops jararaca plasma by DEAE-Sephadex ion-exchange and carboxy-methyl-papain-Sepharose affinity chromatography. The molecular weight, estimated by SDS-gel electrophoresis, is about 100,000 and a species of about 75,000 is formed after incubation with horse
urinary kallikrein
. After incubation with trypsin, only traces of biological activity were detected in tests on guinea pig ileum. The purified protein inhibits papain and
bromelain
, does not correct the clotting time of a kininogen-depleted human plasma, and does not affect the clotting time of plasma from Waglerophis merremii, a nonpoisonous snake; the same type of inhibitor was found in this nonpoisonous snake. The dissociation constant (Ki) for the papain-inhibitor complex is approximately 1.6 nM.
...
PMID:A Bothrops jararaca plasma cysteine-proteinase inhibitor related to mammalian kininogen. 263 47
