Provided in some embodiments are antibodies comprising a heavy chain having no native interchain cysteine amino acids, a light chain having no native interchain cysteine amino acids, and having no native interchain disulphide linkages between the heavy chain and the light chain. Also provided in certain embodiments are antibodies comprising a heavy chain having no native interchain cysteine amino acids, a light chain having no native interchain cysteine amino acids, and having no native interchain disulphide linkages between the heavy chain and the light chain where the native interchain cysteine amino acids have been replaced by amino acids having no thiol moiety.
