4TGF:
reference: Solution structures of human transforming growth factor alpha derived from 1H NMR data., Kline TP, Brown FK, Brown SC, Jeffs PW, Kopple KD, Mueller L, Biochemistry 1990 Aug 28;29(34):7805-13. PMID: 2261437

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).