Contributions of Zur-controlled ribosomal proteins to growth under zinc starvation conditions.

Abstract excerpt

Maintaining intracellular zinc levels is critical, because zinc serves as a cofactor for many required enzymes and is toxic in excess. Bacillus subtilis Zur, a Fur family repressor, controls the zinc starvation response including two ribosomal proteins (r-proteins) paralogous to L31 and S14. Biochemical analyses suggest that Zur-controlled r-proteins (which lack the two CXXC metal-binding motifs) may functionally...

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