>8X3A_1|Chain A|Serine protease|Acetivibrio thermocellus DSM 1313 (637887) MSVKIGDIDGNGEISSIDYAILKSHLINSNLTFKQLAAADVDGNGYVNSIDLAILQMYLLGKGGTSDIGKNRIYTYGDIDNNGIVDENDYILICNHINGTGQLSDASLFAADADGNNVIDQTDRILIEKYITGRITHLPVGNQLEHHHHHHH