Abstract
Enterobacter xiangfangensis Pb204, isolated from acid mine decant from a uranium mine, produces a wide variety of gold nanoparticles (AuNPs), ranging from large triangular plates to small spherical AuNPs. The complete genome sequence of this isolate incorporates an integrative and conjugative element which may be pivotal to AuNP synthesis.
Highlights
Enterobacter xiangfangensis Pb204, isolated from acid mine decant from a uranium mine, produces a wide variety of gold nanoparticles (AuNPs), ranging from large triangular plates to small spherical AuNPs
The digital DNA-DNA hybridization (dDDH) (76%) and average nucleotide identity (ANI) (97.12%) exceeded the proposed species boundary values [9, 10] for only 1 species, E. xiangfangensis, which suggests that Pb204 is a novel strain of this species
This can largely be attributed to the presence of a ϳ93.2-kb integrative and conjugative element (ICE) in Pb204 (ICEExiPb204)
Summary
Enterobacter xiangfangensis Pb204, isolated from acid mine decant from a uranium mine, produces a wide variety of gold nanoparticles (AuNPs), ranging from large triangular plates to small spherical AuNPs. The complete genome sequence of E. xiangfangensis Pb204 comprises a circular chromosome and 2 small circular plasmids with a total size of 4,963,709 bp, a GϩC content of 55.35%, and coding for 4,617 proteins. Phylogenomic classification of Pb204 was undertaken with digital DNA-DNA hybridization (dDDH) and average nucleotide identity (ANI) with the Genome-to-Genome Distance Calculator server v.
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