4IVV:
reference: Structural and functional insights into peptidoglycan access for the lytic amidase LytA of Streptococcus pneumoniae., Mellroth P, Sandalova T, Kikhney A, Vilaplana F, Hesek D, Lee M, Mobashery S, Normark S, Svergun D, Henriques-Normark B, Achour A, MBio. 2014 Feb 11;5(1):e01120-13. doi: 10.1128/mBio.01120-13. PMID: 24520066

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