>6QSZ_2|Chains B, D, F, H, J, L, N, P|Silent chromatin protein ESC1|Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (559292) IPSTDLPSDPPSDKEE >6QSZ_1|Chains A, C, E, G, I, K, M, O|Regulatory protein SIR4|Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (559292) GPKPKNTKENLSKSSWRQEWLANLKLISVSLVDEFPSELSDSDRQIINEKMQLLKDIFANNLKSAISNNFRESDIIILKGEIEDYPMSSEIKIYYNELQNKPDAKKARFWSFMKTQRFVSNMGFDIQ