4XXK:
reference: The terminal phycobilisome emitter, LCM: A light-harvesting pigment with a phytochrome chromophore., Tang K, Ding WL, Hoppner A, Zhao C, Zhang L, Hontani Y, Kennis JT, Gartner W, Scheer H, Zhou M, Zhao KH, Proc Natl Acad Sci U S A. 2015 Dec 29;112(52):15880-5. doi:, 10.1073/pnas.1519177113. Epub 2015 Dec 15. PMID: 26669441

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