>4BZQ_1|Chains A, B|BIFUNCTIONAL ENZYME CYSN/CYSC|MYCOBACTERIUM TUBERCULOSIS (1773)
PPRGKTVWFTGLSGSGKSSVAMLVERKLLEKGISAYVLDGDNLRHGLNADLGFSMADRAENLRRLSHVATLLADCGHLVLVPAISPLAEHRALARKVHADAGIDFFEVFCDTPLQDCERRDPKGLYAKARAGEITHFTGIDSPYQRPKNPDLRLTPDRSIDEQAQEVIDLLES