Cysteine persulfide intermediate of NifS from Helicobacter pylori

2-[(3-HYDROXY-2-METHYL-5-PHOSPHONOOXYMETHYL-PYRIDIN-4-YLMETHYL)-AMINO]-PROPIONIC ACID

Structural snapshot of cysteine desulfurase NifS with L-cysteine in initiation of catalysis

MVQRIYLDNNATTRIDPKVKEIMDPFLRDHYGNPSSLHQFGTETHPAIAEALDKLYKGINARDIDDVIITSCATESNNWV
LKGVYFDECLKKGKNHIVTTVAEHPAVRSTCNFLESLGVEVTYLPINEHGSITAEQVREAITEKTALVSVMWANNETGLI
FPIEEIGAICKEKGVLFHTDAVQAIGKIPVDVLKANADFLSFSAHKFHGPKGIGGLYIRSGVGLTPLFHGGEHMNGRRSG
TLNVPYIVGMGEAMKLAVEHLDYEKEVVGKLRDKLEEALLKIPDVMVVGDRIHRVPNTTLVSVRGIEGEAMLWDLNRSNI
AASTGSA(CSS)ASEDLEANPVMVAIGASKELAHTAIRLSLSRFNTEAEIDKTIEVFSQAAVRLRNISSSYVDLVPRGSH
HHHHH

MVQRIYLDNNATTRIDPKVKEIMDPFLRDHYGNPSSLHQFGTETHPAIAEALDKLYKGINARDIDDVIITSCATESNNWV
LKGVYFDECLKKGKNHIVTTVAEHPAVRSTCNFLESLGVEVTYLPINEHGSITAEQVREAITEKTALVSVMWANNETGLI
FPIEEIGAICKEKGVLFHTDAVQAIGKIPVDVLKANADFLSFSAHKFHGPKGIGGLYIRSGVGLTPLFHGGEHMNGRRSG
TLNVPYIVGMGEAMKLAVEHLDYEKEVVGKLRDKLEEALLKIPDVMVVGDRIHRVPNTTLVSVRGIEGEAMLWDLNRSNI
AASTGSACASEDLEANPVMVAIGASKELAHTAIRLSLSRFNTEAEIDKTIEVFSQAAVRLRNISSSYVDLVPRGSHHHHH
H

Helicobacter pylori (strain ATCC 700392 / 26695)

HEPES/NaOH, PEG 4000, glycerol, isopropanol, L-cysteine

Iron-sulfur cluster biogenesis, cysteine desulfurase, TRANSFERASE

MLQRIYLDNNATTRIDPKVKEIMDPFLRDHYGNPSSLHQFGTETHPAIAEALDKLYKGINARDIDDVIITSCATESNNWV
LKGVYFDECLKKGKNHIVTTVAEHPAVRSTCNFLESLGVEVTYLPINEHGSITAEQVKEAITEKTALVSVMWANNETGLI
FPIEEIGAICKEKGVLFHTDAVQAIGKIPVDVLKANADFLSFSAHKFHGPKGIGGLYIRSGVGLTPLFHGGEHMNGRRSG
TLNVPYIVGMGEAMKLAVEHLDYEKEVVGKLRDKLEEALLKIPDVMVVGDRIHRVPNTTLVSVRGIEGEAMLWDLNRSNI
AASTGSACASEDLEANPVMVAIGASKELAHTAIRLSLSRFNTEAEIDKTIEVFSQAAVRLRNISSSY