Skip to content. | Skip to navigation

Advanced Search…
Personal tools
 
You are here: Home → For Faculty & Staff → Reference Search → 2005 References → Chow et al, May 2005, Nardilysin facilitates complex formation between mitochondrial malate dehydrogenase and citrate synthase

Chow et al, May 2005, Nardilysin facilitates complex formation between mitochondrial malate dehydrogenase and citrate synthase

Reference

Chow, K. M., Ma, Z., Cai, J., Pierce, W. M., & Hersh, L. B.  Nardilysin facilitates complex formation between mitochondrial malate dehydrogenase and citrate synthase. Biochimica et Biophysica Acta, 1723(1-3): 292-301. (2005).

Abstract

Gel filtration chromatography showed that nardilysin activity in a rat testis or rat brain extract exhibited an apparent molecular weight of approximately 300 kDa compared to approximately 187 kDa for the purified enzyme. The addition of purified nardilysin to a rat brain extract, but not to an E. coli extract, produced the higher molecular species. The addition of a GST fusion protein containing the acidic domain of nardilysin eliminated the higher molecular weight nardilysin forms, suggesting that oligomerization involves the acidic domain of nardilysin. Using an immobilized nardilysin column, mitochondrial malate dehydrogenase (mMDH) and citrate synthase (CS) were isolated from a fractionated rat brain extract. Porcine mMDH, but not porcine cytosolic MDH, was shown to form a heterodimer with nardilysin. Mitochondrial MDH increased nardilysin activity about 50%, while nardilysin stabilized mMDH towards heat inactivation. CS was co-immunoprecipitated with mMDH only in the presence of nardilysin showing that nardilysin facilitates complex formation
Document Actions
Personal tools