There was an error published in J. Cell Sci. (2017) 130, 3173-3185 (doi:10.1242/jcs.194571).
In the above paper, we described the purification of a polyene from strain IS1 and identified it as a novel compound based on mass spectrometry data (published in Fig. 8B). We have been investigating this molecule in more detail and now believe, based on 1H NMR data, that it is identical to the known molecule fungichromin (also known as cogomycin, pentamycin and lagosin). The original identification of the molecule as novel was based on our interpretation of the ion at m/z=693.379 as a protonated ion [M+H]+, whereas we now believe that this represents a sodiated ion [M+Na]+.
The authors apologise to the readers for any confusion that this error might have caused.