>4bzq_B mol:protein length:173 BIFUNCTIONAL ENZYME CYSN/CYSC
PPRGKTVWFTGLSGSGKSSVAMLVERKLLEKGISAYVLDGDNLRHGLNADLGFSMADRAENLRRLSHVATLLADCGHLVLVPAISPLAEHRALARKVHADAGIDFFEVFCDTPLQDCERRDPKGLYAKARAGEITHFTGIDSPYQRPKNPDLRLTPDRSIDEQAQEVIDLLES