Updated publication reference for PubMed record(s): 28489815. The Human Induced Pluripotent Stem Cells Initiative (HipSci) is generating a large, high-quality reference panel of human IPSC lines. This is a pilot submission of mass-spectrometry analyses from 18 induced pluripotent stem cell lines generated by the HipSci project. This submission includes also data for two embryonic stem cell lines, and one reference sample comprising a mixture of 42 IPSC lines. Associated BioSamples accessions: <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2397999">SAMEA2397999</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2398167">SAMEA2398167</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2398916">SAMEA2398916</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2397948"> SAMEA2397948 </a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2399112">SAMEA2399112</a>,<a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2399257">SAMEA2399257</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2398553">SAMEA2398553</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2398821">SAMEA2398821</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2398316">SAMEA2398316</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2469778">SAMEA2469778</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2399037">SAMEA2399037</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2398656">SAMEA2398656</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2398428">SAMEA2398428</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2469777">SAMEA2469777</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2397959">SAMEA2397959</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2398442">SAMEA2398442</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2398024">SAMEA2398024</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA2398450">SAMEA2398450</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA3402864">SAMEA3402864</a>, <a href="http://www.ebi.ac.uk/biosamples/sample/SAMEA3110364">SAMEA3110364</a>