Updated publication reference for PubMed record(s): 35222334. The study was designed to describe the effects of zinc limitation on gene expression in M. smegmatis by comparing the proteomes of zinc-replete and zinc-limited wild type. Additionally, the study informs how loss of the altRP operon impacts the proteome during zinc limitation by comparing the proteomes of zinc-limited ΔaltRP mutant to the zinc-replete and zinc-limited wild type, and to confirm which changes are complemented in the complement strain (ΔaltRP/c).