The present invention provides a human mitochondrial chaperone protein (Hmt-GrpE) and polynucleotides which identify and encode Hmt-GrpE. The invention also provides expression vectors and host cells and a method for producing Hmt-GrpE. The invention also provides for antibodies or antagonists specifically binding Hmt-GrpE, and their use in the prevention and treatment of cancer. The invention also provides diagnostic assays. The invention also provides for the use of Hmt-GrpE in identifying antifungal and antiprotozoal therapeutics.
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