6k6r is a 2 chain structure with sequence from Saccharomyces cerevisiae S288C. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
↑ Foster MW, Forrester MT, Stamler JS. A protein microarray-based analysis of S-nitrosylation. Proc Natl Acad Sci U S A. 2009 Nov 10;106(45):18948-53. doi:, 10.1073/pnas.0900729106. Epub 2009 Oct 28. PMID:19864628 doi:http://dx.doi.org/10.1073/pnas.0900729106