>4ZU6_1|Chain A[auth X]|Cysteine synthase|Haemophilus influenzae KW20 (71421) HHHHHHSSGLVPRGSHMAIYADNSYSIGNTPLVRLKHFGHNGNVVVKIEGRNPSYSVKCRIGANMVWQAEKDGTLTKGKEIVDATSGNTGIALAYVAAARGYKITLTMPETMSLERKRLLCGLGVNLVLTEGAKGMKGAIAKAEEIVASDPSRYVMLKQFENPANPQIHRETTGPEIWKDTDGKVDVVVAGVGTGGSITGISRAIKLDFGKQITSVAVEPVESPVISQTLAGEEVKPGPHKIQGIGAGFIPKNLDLSIIDRVETVDSDTALATARRLMAEEGILAGISSGAAVAAADRLAKLPEFADKLIVVILPSASERYLSTALFEGIEG >4ZU6_2|Chain B|C-terminal peptide from Serine acetyltransferase|Salmonella typhimurium LT2 (99287) HHTFEYGDGI