>4QI9_1|Chains A, B, C|Dihydrofolate reductase|Yersinia pestis (214092) MIISLIAALAADRVIGMENAMPWHLPADLAWFKRNTLNKPVIMGRKTFESIGRPLPGRLNIVISSQPGTDERVTWAASIEEALAFAGNAEEVMVMGGGRVYKQFLDRANRMYLTHIDAEVGGDTHFPDYEPDEWESVFSEFHDADEANSHSYCFEILERRGENLYFQ