| 3PDI: reference: Structure of precursor-bound NifEN: a nitrogenase FeMo cofactor maturase/insertase., Kaiser JT, Hu Y, Wiig JA, Rees DC, Ribbe MW, Science. 2011 Jan 7;331(6013):91-4. PMID: 21212358 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).