We apologize for Proteopedia being slow to respond. For the past two years, a new implementation of Proteopedia has been being built. Soon, it will replace this 18-year old system. All existing content will be moved to the new system at a date that will be announced here.
4xu4 is a 1 chain structure with sequence from Mycolicibacterium vanbaalenii PYR-1. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
↑ Ren R, Zhou X, He Y, Ke M, Wu J, Liu X, Yan C, Wu Y, Gong X, Lei X, Yan SF, Radhakrishnan A, Yan N. PROTEIN STRUCTURE. Crystal structure of a mycobacterial Insig homolog provides insight into how these sensors monitor sterol levels. Science. 2015 Jul 10;349(6244):187-91. doi: 10.1126/science.aab1091. PMID:26160948 doi:http://dx.doi.org/10.1126/science.aab1091