>3A6R_1|Chains A, B, C, D|FMN-binding protein|Desulfovibrio vulgaris (883) MLPGTFFEVLKNQGVVAIATQGEDGPHLVNTWNSYLKVLDGNRIVVPVGGMHKTEANVARDERVLMTLGSRKVAGRNGPGTGFLIRGSAAFRTDGPEFEAIARFKWARAALVITVVSAEQTL