>4P5B_1|Chains A, B, C, D|Thymidylate synthase ThyX|Streptomyces cacaoi subsp. asoensis (249586) MESPRIELRSDITVELVDSSASDLAVVKAARVSTAGEDANDELYDGGSTRGLIRYLMRSRHGSPFEHNSMTFLVRAPIFTVRHLMRHRTWSFNEESARYREVGAAFYVPDATRLLRQEGKPGDYRYVGGSTDDHQQVVRSATRAYEVAFEEYQRLLDSGIAREIARLVLPVSTYSVLYATCNARALMHFLSLRTHRPDAAYVSHPQREIEMVAEQMETAWAKLMPVTHEAFTAFGRVSP