Structure of PDB 1xi2 Chain A

Receptor sequence
>1xi2A (length=230) Species: 9606 (Homo sapiens) [Search protein sequence]
AGKKVLIVYAHQEPKSFNGSLKNVAVDELSRQGCTVTVSDLYAMNFEPRA
TDKDITGTLSNPEVFNYGVETHEAYKQRSLASDITDEQKKVREADLVIFQ
FPLYWFSVPAILKGWMDRVLCQGFAFDIPGFYDSGLLQGKLALLSVTTGG
TAEMYTKTGVNGDSRYFLWPLQHGTLHFCGFKVLAPQISFAPEIASEEER
KGMVAAWSQRLQTIWKEEPIPCTAHWHFGQ
3D structure
PDB1xi2 Crystal structure of quinone reductase 2 in complex with cancer prodrug CB1954
ChainA
Resolution1.5 Å
3D
structure
Catalytic site residues are labeled in the structure
[Spin on]
[Spin off]
[Reset orientation]

[High quality]
[Low quality]

[White background]
[Black background]

[Download]
[Download structure with residue number starting from 1]
Enzymatic activity
Catalytic site (original residue number in PDB) G149 Y155 N161
Catalytic site (residue number reindexed from 1) G149 Y155 N161
Enzyme Commision number 1.10.5.1: ribosyldihydronicotinamide dehydrogenase (quinone).
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 ZN A H173 H177 C222 H173 H177 C222
BS02 FAD A H11 S16 F17 N18 S20 L103 Y104 W105 F106 T147 G149 Y155 P192 E193 R200 H11 S16 F17 N18 S20 L103 Y104 W105 F106 T147 G149 Y155 P192 E193 R200
BS03 CB1 A G149 G150 N161 G149 G150 N161 MOAD: ic50<1uM
BS04 CB1 A F126 F178 F126 F178 MOAD: ic50<1uM
Gene Ontology
Molecular Function
GO:0001512 dihydronicotinamide riboside quinone reductase activity
GO:0003955 NAD(P)H dehydrogenase (quinone) activity
GO:0005515 protein binding
GO:0008270 zinc ion binding
GO:0009055 electron transfer activity
GO:0016491 oxidoreductase activity
GO:0016661 oxidoreductase activity, acting on other nitrogenous compounds as donors
GO:0031404 chloride ion binding
GO:0042803 protein homodimerization activity
GO:0046872 metal ion binding
GO:0071949 FAD binding
GO:1904408 melatonin binding
GO:1905594 resveratrol binding
Biological Process
GO:1901662 quinone catabolic process
Cellular Component
GO:0005654 nucleoplasm
GO:0005737 cytoplasm
GO:0005829 cytosol
GO:0070062 extracellular exosome

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:1xi2, PDBe:1xi2, PDBj:1xi2
PDBsum1xi2
PubMed16129418
UniProtP16083|NQO2_HUMAN Ribosyldihydronicotinamide dehydrogenase [quinone] (Gene Name=NQO2)

[Back to BioLiP]