Paracoccus sp. Arc7-R13, a silver nanoparticles (AgNPs) synthesizing bacterium, was isolated from Arctic Ocean sediment. Here we describe the complete genome of Paracoccus sp. Arc7-R13. The complete genome contains 4,040,012 bp with 66.66 mol% G + C content, including one circular chromosome of 3,231,929 bp (67.45 mol% G + C content), and eight plasmids with length ranging from 24,536 bp to 199,685 bp. The genome contains 3835 protein-coding genes (CDSs), 49 tRNA genes, as well as 3 rRNA operons as 16S-23S-5S rRNA. Based on the gene annotation and Swiss-Prot analysis, a total of 15 genes belonging to 11 kinds, including silver exporting P-type ATPase (SilP), alkaline phosphatase, nitroreductase, thioredoxin reductase, NADPH dehydrogenase and glutathione peroxidase, might be related to the synthesis of AgNPs. Meanwhile, many additional genes associated with synthesis of AgNPs such as protein-disulfide isomerase, c-type cytochrome, glutathione synthase and dehydrogenase reductase were also identified.

副球菌属。从北冰洋沉积物中分离出一种银纳米颗粒（AgNPs）合成细菌Arc7-R13。在这里，我们描述了副球菌的完整基因组sp。Arc7-R13。完整的基因组包含4,040,012 bp，G + C含量为66.66 mol％，包括一个3,231,929 bp的环状染色体（67.45 mol％G + C含量），以及八个质粒，长度在24,536 bp至199,685 bp之间。该基因组包含3835个蛋白质编码基因（CDS），49个tRNA基因以及3个rRNA操纵子，如16S-23S-5S rRNA。根据基因注释和Swiss-Prot分析，可能与11种银共有15个基因相关，包括银输出P型ATP酶（SilP），碱性磷酸酶，硝基还原酶，硫氧还蛋白还原酶，NADPH脱氢酶和谷胱甘肽过氧化物酶。 AgNP的合成。同时，还鉴定了许多与AgNPs合成有关的其他基因，例如蛋白质二硫键异构酶，c型细胞色素，谷胱甘肽合酶和脱氢酶还原酶。