Correction to: Nature Protocols https://doi.org/10.1038/s41596-019-0172-4, published online 7 June 2019.

In the version of this article initially published, the volume of dimethyl sulfoxide (DMSO) for preparing 500 mM disuccinimidyl glutarate (DSG) described in the ‘Reagent setup’ section was incorrect. The correct volume is 306.5 µl, not 3,262.6 µl. In addition, the unit for the final concentration of T4 polynucleotide kinase (PNK) at Step 40 was incorrect. The correct unit is U/l, not U/µl. The errors have been corrected in the HTML and PDF versions of the article.