>3S3V_1|Chain A|Dihydrofolate reductase|Homo sapiens (9606) VGSLNCIVAVSQNMGIGKNGDLPWPPLRNEFRYFKRMTTTSSVEGKQNLVIMGKKTWFSIPEKFRPLKGRINLVLSRELKEPPQGAHFLSRSLDDALKLTEQPELANKVDMVWIVGGSSVYKEAMNHPGHLKLFVTRIMQDFESDTFFPEIDLEKYKLLPEYPGVLSDVQEEKGIKYKFEVYEKND