Maruyama Yukie, Hashimoto Wataru, Murata Kousaku
a Division of Food Science and Biotechnology , Graduate School of Agriculture, Kyoto University , Uji, Kyoto , Japan.
b Department of Life Science, Faculty of Science and Engineering , Setsunan University , Neyagawa, Osaka , Japan.
Biosci Biotechnol Biochem. 2019 May;83(5):794-802. doi: 10.1080/09168451.2019.1578642. Epub 2019 Feb 11.
Alginate is an acidic heteropolysaccharide produced by brown seaweed and certain kinds of bacteria. The cells of Sphingomonas sp. strain A1, a gram-negative bacterium, have several alginate-degrading enzymes in their cytoplasm and efficiently utilize this polymer for their growth. Sphingomonas sp. strain A1 cells can directly incorporate alginate into their cytoplasm through a transport system consisting of a "pit" on their cell surface, substrate-binding proteins in their periplasm, and an ATP-binding cassette transporter in their inner membrane. This review deals with the structural and functional aspects of bacterial systems necessary for the recognition and uptake of alginate.
藻酸盐是一种由褐藻和某些细菌产生的酸性杂多糖。鞘氨醇单胞菌属菌株A1（一种革兰氏阴性菌）的细胞在其细胞质中有几种藻酸盐降解酶，并能有效地利用这种聚合物进行生长。鞘氨醇单胞菌属菌株A1细胞可以通过一个由其细胞表面的“凹坑”、周质中的底物结合蛋白和内膜中的ATP结合盒转运体组成的转运系统，将藻酸盐直接纳入其细胞质中。本文综述了藻酸盐识别和摄取所需细菌系统的结构和功能方面。
