Reactivities of neutral and cationic forms of 2,2'-dipyridyl disulphide towards thiolate anions. Detection of differences between the active centres of actinidin, papain and ficin by a three-protonic-state reactivity probe.

Eitemau Tebyg

• A marked gradation in active-centre properties in the cysteine proteinases revealed by neutral and anionic reactivity probes. Reactivity characteristics of the thiol groups of actinidin, ficin, papain and papaya peptidase A towards 4,4'-dipyridyl disulphide and 5,5'-dithiobis-(2-nitrobenzoate) dianion.
  gan: Brocklehurst, K, et al.
  Cyhoeddwyd: (1983)
• Evidence for a two-state transition in papain that may have no close analogue in ficin. Differences in the disposition of cationic sites and hydrophobic binding areas in the active centres of papain and ficin.
  gan: Brocklehurst, K, et al.
  Cyhoeddwyd: (1980)
• A kinetic method for the study of solvent environments of thiol groups in proteins involving the use of a pair of isomeric reactivity probes and a differential solvent effect. Investigation of the active centre of ficin by using 2,2'- and 4,4'- dipyridyl disulphides as reactivity probes.
  gan: Malthouse, J P, et al.
  Cyhoeddwyd: (1980)
• Differences in the interaction of the catalytic groups of the active centres of actinidin and papain. Rapid purification of fully active actinidin by covalent chromatography and characterization of its active centre by use of two-protonic-state reactivity probes.
  gan: Brocklehurst, K, et al.
  Cyhoeddwyd: (1981)
• Reactions of papain and of low-molecular-weight thiols with some aromatic disulphides. 2,2′-Dipyridyl disulphide as a convenient active-site titrant for papain even in the presence of other thiols
  gan: Brocklehurst, Keith, et al.
  Cyhoeddwyd: (1973)