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Title
A chaperone with a hydrophilic surface.
Authors
Cowan, N J; Lewis, S A
Abstract
The folding of native tubulin involves at least seven different chaperone proteins: prefoldin, the cytosolic chaperonin CCT and five tubulin-specific chaperone proteins named cofactors A-E. The structure of the yeast homolog of cofactor A, Rbl2p, shows it to be a dimer with largely hydrophilic surfaces, reflecting the fact that it interacts with quasi-native, not unfolded, beta-tubulin.