>8SD5_1|Chains A, B, C, D|6-hydroxymethyl-7,8-dihydropterin pyrophosphokinase|Methanocaldococcus jannaschii (2190) MDMKEWEIFYNKIMEDFGFDKDKDVESAVILNNILENANTIPVDKLKDIIEGREVFIFGAGPSIKKHINILKELREINYKNPIIVADGACKAFLEENIIPDIIVSDLDGDLEALFECNRKGSIIVVHAHGDNIEKIKKYVPKLKNVVGSCQIPNYKELNLRNVINFGGFTDGDRCCFLAYHFKAKKLILGGMDFGIYITKYSRPNIKEDIAIGDEIKIKKLEYAKTLINYLKDKIEIEFLK