摘要:Scientific Reports 5 : Article number: 9803; 10.1038/srep09803 published online: 05 May 2015 ; updated: 06 January 2016 This Article contains a typographical error in the Results section under subheading ‘Statistical analysis of the conformational flexibility of IgG1 antibody’. “The F ab 1 -F c -F ab 2 angle distribution range was significantly wider than the angle measured from 5 cryo-ET 3D reconstructions of the IgG2a antibody 28 .” should read: “The F ab 1 -F c -F ab 2 angle distribution range was significantly wider than the angle measured from 5 cryo-ET 3D reconstructions of the IgG2a antibody 6 .