Structure of PDB 3nc9 Chain B

Receptor sequence
>3nc9B (length=301) Species: 9606 (Homo sapiens) [Search protein sequence]
GLVPRGSQILCVGLVVLDVISLVDKYPKEDSEIRCLSQRWQRGGNASNSC
TVLSLLGAPCAFMGSMAPGHVADFLVADFRRRGVDVSQVAWQSKGDTPSS
CCIINNSNGNRTIVLHDTSLPDVSATDFEKVDLTQFKWIHIEGRNASEQV
KMLQRIDAHNTRQPPEQKIRVSVEVEKPREELFQLFGYGDVVFVSKDVAK
HLGFQSAEEALRGLYGRVRKGAVLVCAWAEEGADALGPDGKLLHSDAFPP
PRVVDTLGAGDTFNASVIFSLSQGRSVQEALRFGCQVAGKKCGLQGFDGI
V
3D structure
PDB3nc9 Electron density guided fragment-based lead discovery of ketohexokinase inhibitors.
ChainB
Resolution2.4 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) G255 A256 G257 D258
Catalytic site (residue number reindexed from 1) G258 A259 G260 D261
Enzyme Commision number 2.7.1.3: ketohexokinase.
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 TR3 B A226 G229 P246 A256 A229 G232 P249 A259 MOAD: ic50=330nM
PDBbind-CN: -logKd/Ki=6.48,IC50=330nM
BindingDB: IC50=590nM
Gene Ontology
Molecular Function
GO:0004454 ketohexokinase activity
GO:0005515 protein binding
GO:0005524 ATP binding
GO:0016301 kinase activity
GO:0042802 identical protein binding
GO:0042803 protein homodimerization activity
GO:0070061 fructose binding
Biological Process
GO:0006000 fructose metabolic process
GO:0006796 phosphate-containing compound metabolic process
GO:0009744 response to sucrose
GO:0009749 response to glucose
GO:0009750 response to fructose
GO:0010043 response to zinc ion
GO:0016310 phosphorylation
GO:0032868 response to insulin
GO:0046835 carbohydrate phosphorylation
GO:0070873 regulation of glycogen metabolic process
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol
GO:0070062 extracellular exosome

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:3nc9, PDBe:3nc9, PDBj:3nc9
PDBsum3nc9
PubMed21033679
UniProtP50053|KHK_HUMAN Ketohexokinase (Gene Name=KHK)

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