>1UDD_1|Chains A, B, C, D|transcriptional regulator|Pyrococcus horikoshii (70601) MRVMITDKLRRDSEQIWKKIFEHPFVVQLYSGTLPLEKFKFYVLQDFNYLVGLTRALAVISSKAEYPLMAELIELARDEVTVEVENYVKLLKELDLTLEDAIKTEPTLVNSAYMDFMLATAYKGNIIEGLTALLPCFWSYAEIAEYHKDKLRDNPIKIYREWGKVYLSNEYLNLVGRLRKIIDSSGHSGYDRLRRIFITGSKFELAFWEMAWRGGDVFLEHHHHHH