Coexpression, purification and characterization of the E and S subunits of coenzyme B(12) and B(6) dependent Clostridium sticklandii D-ornithine aminomutase in Escherichia coli.

Abstract excerpt

D-Ornithine aminomutase from Clostridium sticklandii comprises two strongly associating subunits, OraS and OraE, with molecular masses of 12,800 and 82,900 Da. Previous studies have shown that in Escherichia coli the recombinant OraS protein is synthesized in the soluble form and OraE as inclusion bodies. Refolding experiments also indicate that the interactions between OraS and OraE and the binding of either...

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