4D4T:
reference: Dimerization of Matrix protein is required for budding of Respiratory Syncytial Virus., Forster A, Maertens GN, Farrell PJ, Bajorek M, J Virol. 2015 Feb 11. pii: JVI.03500-14. PMID: 25673702

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