Author Correction: Structure and function of a β-1,2-galactosidase from Bacteroides xylanisolvens, an intestinal bacterium - Yutaka Nakazawa; Masumi Kageyama; Tomohiko Matsuzawa; Ziqin Liang; Kaito Kobayashi; Hisaka Shimizu; Kazuki Maeda; Miho Masuhiro; Sei Motouchi; Saika Kumano; Nobukiyo Tanaka; Kouji Kuramochi; et al. (Communications Biology)