Complete genome sequence of Pseudoalteromonas espejiana DSM9414T, an amino-acid-requiring strain from seawater
2018
Rong, Jin-Cheng | Cha, Qian-Qian | Ren, Xue-Bing | Xie, Bin-Bin | Song, Xiao-Yan
Strain DSM9414, the type strain of Pseudoalteromonas espejiana, is a Gram-negative, and amino-acid-requiring stain isolated from seawater off the coast of Northern California. In this study, we report the complete genome sequence of Pseudoalteromonas espejiana DSM9414T. The genome (4,500,451bp; 40.3% G+C) is composed of two circular chromosomes: chromosome I is 3,720,756bp with 40.4% G+C content and chromosome II is 779,695bp with 39.8% G+C content. Genomic analysis showed that chromosome I encodes a complete set of ABC transporters responsible for branched-chain amino acids, whose homologous proteins were not discovered in other Pseudoalteromonas genomes released. This result indicated the tight dependence of extracellular amino acids for strain DSM9414T, which is consistent with its phenotype. The complete genome sequence of P. espejiana provides further genetic insights into the diversity of dependence on extracellular amino acids for Pseudoalteromonas species.
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