The O-antigen structure of bacterium Comamonas aquatica CJG Wang, Xiqian and Kondakova, Anna N. and Zhu, Yutong and Knirel, Yuriy A. and Han, Aidong,, 163, 1637-1640 (2017), doi = https://doi.org/10.1099/mic.0.000551, publicationName = Microbiology Society, issn = 1350-0872, abstract= Genus Comamonas is a group of bacteria that are able to degrade a variety of environmental waste. Comamonas aquatica CJG (C. aquatica) in this genus is able to absorb low-density lipoprotein but not high-density lipoprotein of human serum. Using 1H and 13C NMR spectroscopy, we found that the O-polysaccharide (O-antigen) of this bacterium is comprised of a disaccharide repeat (O-unit) of d-glucose and 2-O-acetyl-l-rhamnose, which is shared by Serratia marcescens O6. The O-antigen gene cluster of C. aquatica, which is located between coaX and tnp4 genes, contains rhamnose synthesis genes, glycosyl and acetyl transferase genes, and ATP-binding cassette transporter genes, and therefore is consistent with the O-antigen structure determined here., language=, type=