>4M2X_1|Chains A, B[auth C], C[auth E], D[auth G]|Dihydrofolate reductase|Mycobacterium tuberculosis (1773) GSHMVGLIWAQATSGVIGRGGDIPWRLPEDQAHFREITMGHTIVMGRRTWDSLPAKVRPLPGRRNVVLSRQADFMASGAEVVGSLEEALTSPETWVIGGGQVYALALPYATRCEVTEVDIGLPREAGDALAPVLDETWRGETGEWRFSRSGLRYRLYSYHRS