>3IX9_1|Chains A, B|Dihydrofolate reductase|Streptococcus pneumoniae (1313) MKHHHHHHHHGGLVPRGSHGMTKKIVAIWAQDEEGVIGKDNRLPWYLPAELQHFKETTLNHAILMGRVTFDGMGRRLLPKRETLILTRNPEEKIDGVATFHDVQSVLDWYSAQEKNLYIVGGKQIFQAFEPYLDEVIVTHIHARVEGDTYFPAEFDLSLFETVSSKFYTKDEKNPYDFTIQYRKRKEVLE