title: 'Molten-globule' state accumulates in carbonic anhydrase folding.
abstract: Kinetics of folding and unfolding of bovine carbonic anhydrase B were monitored by circular dichroism, viscometry and esterase activity. It was shown that kinetic intermediate states accumulating in folding process reveal a native-like compactness and secondary structure but have a symmetrized average environment of aromatic side groups and no esterase activity. These properties allow one to consider these intermediate states as the 'molten-globule' state of a protein molecule previously described by us for several equilibrium forms of bovine and human alpha-lactalbumins and bovine carbonic anhydrase B.
mesh_terms: D000818:Animals; D002256:Carbonic Anhydrases / Q000378:metabolism*; D002417:Cattle; D002942:Circular Dichroism; D004950:Esterases / Q000378:metabolism; D007700:Kinetics; D046911:Macromolecular Substances; D011487:Protein Conformation; D011489:Protein Denaturation; D014783:Viscosity
chemical_list: D046911:Macromolecular Substances; D004950:Esterases; D002256:Carbonic Anhydrases