Crystal structure of the ferric enterobactin receptor (PfeA) from Pseudomonas aeruginosa in complex with azotochelin

The complex of ferric-enterobactin with its transporter from Pseudomonas aeruginosa suggests a two-site model.

GAMAGQGDGSVIELGEQTVVATAQEETKQAPGVSIITAEDIAKRPPSNDLSQIIRTMPGVNLTGNSSSGQRGNNRQIDIR
GMGPENTLILVDGKPVSSRNSVRYGWRGERDSRGDTNWVPADQVERIEVIRGPAAARYGNGAAGGVVNIITKQAGAETHG
NLSVYSNFPQHKAEGASERMSFGLNGPLTENLSYRVYGNIAKTDSDDWDINAGHESNRTGKQAGTLPAGREGVRNKDIDG
LLSWRLTPEQTLEFEAGFSRQGNIYTGDTQNTNSNNYVKQMLGHETNRMYRETYSVTHRGEWDFGSSLAYLQYEKTRNSR
INEGLAGGTEGIFDPNNAGFYTATLRDLTAHGEVNLPLHLGYEQTLTLGSEWTEQKLDDPSSNTQNTEEGGSIPGLAGKN
RSSSSSARIFSLFAEDNIELMPGTMLTPGLRWDHHDIVGDNWSPSLNLSHALTERVTLKAGIARAYKAPNLYQLNPDYLL
YSRGQGCYGQSTSCYLRGNDGLKAETSVNKELGIEYSHDGLVAGLTYFRNDYKNKIESGLSPVDHASGGKGDYANAAIYQ
WENVPKAVVEGLEGTLTLPLADGLKWSNNLTYMLQSKNKETGDVLSVTPRYTLNSMLDWQATDDLSLQATVTWYGKQKPK
KYDYHGDRVTGSANDQLSPYAIAGLGGTYRLSKNLSLGAGVDNLFDKRLFRAGNAQGVVGIDGAGAATYNEPGRTFYTSL
TASF

HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS

PfeA, PA2688, outer membrane receptor, azotochelin, membrane protein

AGQGDGSVIELGEQTVVATAQEETKQAPGVSIITAEDIAKRPPSNDLSQIIRTMPGVNLTGNSSSGQRGNNRQIDIRGMG
PENTLILVDGKPVSSRNSVRYGWRGERDSRGDTNWVPADQVERIEVIRGPAAARYGNGAAGGVVNIITKQAGAETHGNLS
VYSNFPQHKAEGASERMSFGLNGPLTENLSYRVYGNIAKTDSDDWDINAGHESNRTGKQAGTLPAGREGVRNKDIDGLLS
WRLTPEQTLEFEAGFSRQGNIYTGDTQNTNSNNYVKQMLGHETNRMYRETYSVTHRGEWDFGSSLAYLQYEKTRNSRINE
GLAGGTEGIFDPNNAGFYTATLRDLTAHGEVNLPLHLGYEQTLTLGSEWTEQKLDDPSSNTQNTEEGGSIPGLAGKNRSS
SSSARIFSLFAEDNIELMPGTMLTPGLRWDHHDIVGDNWSPSLNLSHALTERVTLKAGIARAYKAPNLYQLNPDYLLYSR
GQGCYGQSTSCYLRGNDGLKAETSVNKELGIEYSHDGLVAGLTYFRNDYKNKIESGLSPVDHASGGKGDYANAAIYQWEN
VPKAVVEGLEGTLTLPLADGLKWSNNLTYMLQSKNKETGDVLSVTPRYTLNSMLDWQATDDLSLQATVTWYGKQKPKKYD
YHGDRVTGSANDQLSPYAIAGLGGTYRLSKNLSLGAGVDNLFDKRLFRAGNAQGVVGIDGAGAATYNEPGRTFYTSLTAS
F