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pubmed:abstractText |
zeta-crystallin is a quinone oxido-reductase, recruited in the eye lens of hystricomorphic rodents and camels. A deletion mutation constituting the NADPH-binding domain causes congenital cataract in a strain of guinea pigs. The presence of large quantities of a-crystallin, a molecular chaperone, does not provide any protection against this. In order to investigate whether the underlying reason for the lack of protection is the formation of a folding-incompetent protein, we have expressed the mutant protein in a heterologous system along with other known chaperones.
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