{Reference Type}: Comment {Title}: What job can a bug give? A controversy over the arsenic-guzzling bacterium cultured by NASA. {Author}: Sun M;Vavricka CJ;Zhu B; {Journal}: Protein Cell {Volume}: 2 {Issue}: 4 {Year}: Apr 2011 {Factor}: 15.328 {DOI}: 10.1007/s13238-011-1044-z