>3fca_B mol:protein length:291 Cysteine synthase MMERLIGSTPIVRLDSIDSRIALKLEKNNPGGSVKDRPALFMILDAEKRGLLKNGIVEP TSGNMGIAIAMIGAKRGHRVILTMPETMSVERRKVLKMLGAELVLTPGELGMKGAVEKA LEISRETGAHMLNQFENPYNVYSHQFTTGPEILKQMDYQIDAFVAGVGTGGTISGVGRV LKGFFGNGVKIVAVEPAKSPVLSGGQPGKHAIQGIGAGFVPKILDRSVIDEVITVEDEE AYEMARYLAKKEGLLVGISSGANVAAALKVAQKLGPDARVVTVAPDHAERYLSIL