AUTHOR=Sekizuka Tsuyoshi , Matsui Mari , Takahashi Tomiyo , Hayashi Michiko , Suzuki Satowa , Tokaji Akihiko , Kuroda Makoto 

TITLE=Complete Genome Sequence of blaIMP–6-Positive Metakosakonia sp. MRY16-398 Isolate From the Ascites of a Diverticulitis Patient

JOURNAL=Frontiers in Microbiology

VOLUME=9

YEAR=2018

URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2018.02853

DOI=10.3389/fmicb.2018.02853

ISSN=1664-302X

ABSTRACT=<p>A novel species of carbapenemase-producing Enterobacteriaceae (CPE) was isolated from a patient diagnosed with sigmoid colon diverticulitis. At first, laboratory testing suggested it was <italic>Klebsiella oxytoca</italic> or <italic>Pantoea</italic> sp.; however, a complete genome sequence of the isolate, MRY16-398, revealed that it could be novel species, most similar to [<italic>Kluyvera</italic>] <italic>intestini</italic>, of which taxonomic nomenclature is still under discussion. Orthologous conserved gene analysis among 42 related bacterial strains indicated that MRY16-398 was classified as the newly proposed genus <italic>Metakosakonia</italic>. Further, MRY16-398 was found to harbor the <italic>bla</italic><sub>IMP-6</sub> gene-positive class 1 integron (In722) in plasmid pMRY16-398_2 (IncN replicon, 47.4 kb in size). This finding implies that rare and opportunistic bacteria could be potential infectious agents. In conclusion, our results highlight the need for continuous monitoring for CPE even in nonpathogenic bacteria in the nosocomial environment.</p>