Oligomerization and Aggregation of Bovine Pancreatic Ribonuclease A: Characteristic Events Observed by FTIR Spectroscopy
نویسندگان
چکیده
منابع مشابه
Effect of bovine seminal ribonuclease and bovine pancreatic ribonuclease A on bovine oocyte maturation.
Bovine seminal ribonuclease (BS-RNase) contains the MxM (noncovalent dimer) and M=M (free monomer) in constant ratio. The aim of this work was to evaluate the effect of BS-RNase, its monomer and dimer forms, and also various mutants of this enzyme on meiotic completion in cattle oocytes. It was found that BS-RNase has irreversible effects on the meiotic maturation of bovine oocytes in vitro, pa...
متن کاملOn the preparation of bovine pancreatic ribonuclease A.
Many studies on ribonuclease would benefit if reproducible, purified samples of the enzyme were readily available. The present report summarizes experiments on the preparation and storage of chromatographically purified bovine pancreatic ribonuclease A.’ Much of the earlier work on ribonuclease was done with a single, large, commercial batch of material (Armour Lot 381059) which was isolated fr...
متن کاملOligomerization of bovine ribonuclease A: structural and functional features of its multimers.
Bovine pancreatic RNase A (ribonuclease A) aggregates to form various types of catalytically active oligomers during lyophilization from aqueous acetic acid solutions. Each oligomeric species is present in at least two conformational isomers. The structures of two dimers and one of the two trimers have been solved, while plausible models have been proposed for the structures of a second trimer ...
متن کاملNonenzymic reactivation of reduced bovine pancreatic ribonuclease by air oxidation and by glutathione oxidoreduction buffers.
With the glutathione system that leads to rapid regeneration of reduced lysozyme (Saxena, V. P., and Wetlaufer, D. B. (1971) Biochemistry 9, 5015), reduced pancreatic ribonuclease (RNase) regenerated activity in high yield (greater than 90%) but at a considerably lower rate (t1/2 approximately 75 min). Systematic examination of the effects upon regeneration of the concentrations and ratios of r...
متن کاملOn the Structure of Bovine Pancreatic Ribonuclease B
Ribonuclease B is a constituent of the zymogen granules of bovine pancreatic acinar cells and is secreted in the pancreatic juice of cattle (2). Its isolation from bovine pancreatic juice has been described (3). The enzyme is a glycoprotein that possesses an amino acid composition indistinguishable from that of ribonuclease A and contains carbohydrate to the extent of 6 residues of mannose and ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biophysical Journal
سال: 2006
ISSN: 0006-3495
DOI: 10.1529/biophysj.105.071530