Whole-genome sequence of <i>Arthrobacter koreensis</i> strain RMB17, isolated as a recurring laboratory contaminant in high-salt media

Here we report the whole-genome sequence of <i>Arthrobacter koreensis</i> strain RMB17, an actinobacterium isolated as a recurring laboratory contaminant during marine bacteria cultivation in high-salt medium. The 3.4 Mbp genome was sequenced in its entirety using Oxford Nanopore technology, revealing a GC content of 65.88% with 165× sequence coverage.