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Structure of PDB 1i3n Chain B Binding Site BS01

Receptor Information
>1i3n Chain B (length=345) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
AEKVLVTGGAGYIGSHTVLELLEAGYLPVVIDNFHNAFRGGGSLPESLRR
VQELTGRSVEFEEMDILDQGALQRLFKKYSFMAVIHFAGLKAMGESVQKP
LDYYRVNLTGTIQLLEIMKAHGVKNLVFSSSATVYGNPQYLPLDEAHPTG
GCTNPYGKSKFFIEEMIRDLCQADKTWNVVLLRYFNPTGAHASGCIGEDP
QGIPNNLMPYVSQVAIGRREALNVFGNDYDTEDGTGVRDYIHVVDLAKGH
IAALRKLKEQCGCRIYNLGTGTGYSVLQMVQAMEKASGKKIPYKVVARRE
GDVAACYANPSLAQEELGWTAALGLDRMCEDLWRWQKQNPSGFGT
Ligand information
Ligand IDNAD
InChIInChI=1S/C21H27N7O14P2/c22-17-12-19(25-7-24-17)28(8-26-12)21-16(32)14(30)11(41-21)6-39-44(36,37)42-43(34,35)38-5-10-13(29)15(31)20(40-10)27-3-1-2-9(4-27)18(23)33/h1-4,7-8,10-11,13-16,20-21,29-32H,5-6H2,(H5-,22,23,24,25,33,34,35,36,37)/t10-,11-,13-,14-,15-,16-,20-,21-/m1/s1
InChIKeyBAWFJGJZGIEFAR-NNYOXOHSSA-N
SMILES
SoftwareSMILES
CACTVS 3.341NC(=O)c1ccc[n+](c1)[C@@H]2O[C@H](CO[P]([O-])(=O)O[P@](O)(=O)OC[C@H]3O[C@H]([C@H](O)[C@@H]3O)n4cnc5c(N)ncnc45)[C@@H](O)[C@H]2O
OpenEye OEToolkits 1.5.0c1cc(c[n+](c1)C2C(C(C(O2)COP(=O)([O-])OP(=O)(O)OCC3C(C(C(O3)n4cnc5c4ncnc5N)O)O)O)O)C(=O)N
CACTVS 3.341NC(=O)c1ccc[n+](c1)[CH]2O[CH](CO[P]([O-])(=O)O[P](O)(=O)OC[CH]3O[CH]([CH](O)[CH]3O)n4cnc5c(N)ncnc45)[CH](O)[CH]2O
OpenEye OEToolkits 1.5.0c1cc(c[n+](c1)[C@H]2[C@@H]([C@@H]([C@H](O2)CO[P@@](=O)([O-])O[P@@](=O)(O)OC[C@@H]3[C@H]([C@H]([C@@H](O3)n4cnc5c4ncnc5N)O)O)O)O)C(=O)N
FormulaC21 H27 N7 O14 P2
NameNICOTINAMIDE-ADENINE-DINUCLEOTIDE
ChEMBLCHEMBL1234613
DrugBankDB14128
ZINC
PDB chain1i3n Chain B Residue 900 [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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PDB1i3n Molecular basis for severe epimerase deficiency galactosemia. X-ray structure of the human V94m-substituted UDP-galactose 4-epimerase.
Resolution1.5 Å
Binding residue
(original residue number in PDB)		G9 G12 Y13 I14 D33 N34 N37 D66 I67 F88 A89 G90 K92 S130 S131 Y157 K161 Y185 P188
Binding residue
(residue number reindexed from 1)		G8 G11 Y12 I13 D32 N33 N36 D65 I66 F87 A88 G89 K91 S129 S130 Y156 K160 Y184 P187
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) S132 A133 T134 Y157 K161
Catalytic site (residue number reindexed from 1) S131 A132 T133 Y156 K160
Enzyme Commision number 5.1.3.2: UDP-glucose 4-epimerase.
5.1.3.7: UDP-N-acetylglucosamine 4-epimerase.
Gene Ontology
Molecular Function
GO:0003974 UDP-N-acetylglucosamine 4-epimerase activity
GO:0003978 UDP-glucose 4-epimerase activity
GO:0016853 isomerase activity
GO:0042802 identical protein binding
GO:0042803 protein homodimerization activity
Biological Process
GO:0006012 galactose metabolic process
GO:0019388 galactose catabolic process
GO:0033499 galactose catabolic process via UDP-galactose
Cellular Component
GO:0005829 cytosol

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1i3n, PDBe:1i3n, PDBj:1i3n
PDBsum1i3n
PubMed11279193
UniProtQ14376|GALE_HUMAN UDP-glucose 4-epimerase (Gene Name=GALE)

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