Structure of PDB 8a1x Chain B Binding Site BS02

Receptor Information
>8a1x Chain B (length=396) Species: 666 (Vibrio cholerae) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
KHEKWFALYEAAATLFYTPGLVTKRSSHVRDSVDLKRIMIMVWLAVFPAM
FWGMYNAGGQAIAALNHLYSGDQLAAIVAGNWHYWLTEMLGGTMSSDAGW
GSKMLLGATYFLPIYATVFIVGGFWEVLFCMVRKHEVNEGFFVTSILFAL
IVPPTLPLWQAALGITFGVVVAKEVFGGTGRNFLNPALAGRAFLFFAYPA
QISGDLVWTAADGYSGATALSQWAQGGAGALINNATGQTITWMDAFIGNI
PGSIGEVSTLALMIGAAFIVYMGIASWRIIGGVMIGMILLSTLFNVIGSD
TNAMFNMPWHWHLVLGGFAFGMFFMATDPVSASFTNSGKWAYGILIGVMC
VLIRVVNPAYPEGMMLAILFANLFAPLFDHVVVERNIKRRLARYGK
Ligand information
Ligand IDRBF
InChIInChI=1S/C17H20N4O6/c1-7-3-9-10(4-8(7)2)21(5-11(23)14(25)12(24)6-22)15-13(18-9)16(26)20-17(27)19-15/h3-4,11-12,14,22-25H,5-6H2,1-2H3,(H,20,26,27)/t11-,12+,14-/m0/s1
InChIKeyAUNGANRZJHBGPY-SCRDCRAPSA-N
SMILES
SoftwareSMILES
CACTVS 3.385Cc1cc2N=C3C(=O)NC(=O)N=C3N(C[CH](O)[CH](O)[CH](O)CO)c2cc1C
OpenEye OEToolkits 1.7.6Cc1cc2c(cc1C)N(C3=NC(=O)NC(=O)C3=N2)CC(C(C(CO)O)O)O
OpenEye OEToolkits 1.7.6Cc1cc2c(cc1C)N(C3=NC(=O)NC(=O)C3=N2)C[C@@H]([C@@H]([C@@H](CO)O)O)O
CACTVS 3.385Cc1cc2N=C3C(=O)NC(=O)N=C3N(C[C@H](O)[C@H](O)[C@H](O)CO)c2cc1C
ACDLabs 12.01N=2C(=O)NC(=O)C3=Nc1cc(C)c(C)cc1N(C=23)CC(O)C(O)C(O)CO
FormulaC17 H20 N4 O6
NameRIBOFLAVIN;
RIBOFLAVINE;
VITAMIN B2
ChEMBLCHEMBL1534
DrugBankDB00140
ZINCZINC000002036848
PDB chain8a1x Chain B Residue 502 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB8a1x Conformational coupling of redox-driven Na + -translocation in Vibrio cholerae NADH:quinone oxidoreductase.
Resolution3.2 Å
Binding residue
(original residue number in PDB)		M57 V60 V161 T162 L165 T197 N200 N203 P204 A205 I292 F342 M343 D346 P347 V348
Binding residue
(residue number reindexed from 1)		M39 V42 V143 T144 L147 T179 N182 N185 P186 A187 I274 F324 M325 D328 P329 V330
Annotation score1
Enzymatic activity
Enzyme Commision number 7.2.1.1: NADH:ubiquinone reductase (Na(+)-transporting).
Gene Ontology
Molecular Function
GO:0010181 FMN binding
GO:0016655 oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor
GO:1902444 riboflavin binding
Biological Process
GO:0006814 sodium ion transport
GO:0022904 respiratory electron transport chain
GO:0055085 transmembrane transport
Cellular Component
GO:0005886 plasma membrane
GO:0016020 membrane

View graph for
Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:8a1x, PDBe:8a1x, PDBj:8a1x
PDBsum8a1x
PubMed37710014
UniProtA5F5X0|NQRB_VIBC3 Na(+)-translocating NADH-quinone reductase subunit B (Gene Name=nqrB)

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