Structure of PDB 1z5n Chain A Binding Site BS02

Receptor Information
>1z5n Chain A (length=234) Species: 562 (Escherichia coli) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
FSMKIGIIGAMEEQVTLLRDKIENRQTISLGGCEIYTGQLNGTEVALLKS
GIGKVAAALGATLLLEHCKPDVIINTGSAGGLAPTLKVGDIVVSDEARYH
DADVTAFGYEYGQLPGCPAGFKADDKLIAAAEACIAELNLNAVRGLIVSG
DAFINGSVGLAKIRHNFPQAIAVEMEATAIAHVCHNFNVPFVVVRAISDV
ADQQSHLSFDEFLAVAAKQSSLMVESLVQKLAHG
Ligand information
Ligand IDADE
InChIInChI=1S/C5H5N5/c6-4-3-5(9-1-7-3)10-2-8-4/h1-2H,(H3,6,7,8,9,10)
InChIKeyGFFGJBXGBJISGV-UHFFFAOYSA-N
SMILES
SoftwareSMILES
CACTVS 3.341Nc1ncnc2[nH]cnc12
OpenEye OEToolkits 1.5.0c1[nH]c2c(n1)c(ncn2)N
ACDLabs 10.04n1c(c2ncnc2nc1)N
FormulaC5 H5 N5
NameADENINE
ChEMBLCHEMBL226345
DrugBankDB00173
ZINCZINC000000000882
PDB chain1z5n Chain A Residue 234 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1z5n Structural snapshots of MTA/AdoHcy nucleosidase along the reaction coordinate provide insights into enzyme and nucleoside flexibility during catalysis
Resolution2.1 Å
Binding residue
(original residue number in PDB)		A77 G78 F151 I152 M173 D197
Binding residue
(residue number reindexed from 1)		A79 G80 F153 I154 M175 D199
Annotation score5
Binding affinityMOAD: Ki=300uM
Enzymatic activity
Enzyme Commision number 3.2.2.9: adenosylhomocysteine nucleosidase.
Gene Ontology
Molecular Function
GO:0003824 catalytic activity
GO:0008782 adenosylhomocysteine nucleosidase activity
GO:0008930 methylthioadenosine nucleosidase activity
GO:0016787 hydrolase activity
GO:0042802 identical protein binding
GO:0042803 protein homodimerization activity
Biological Process
GO:0009086 methionine biosynthetic process
GO:0009116 nucleoside metabolic process
GO:0009164 nucleoside catabolic process
GO:0019284 L-methionine salvage from S-adenosylmethionine
GO:0019509 L-methionine salvage from methylthioadenosine
GO:0046124 purine deoxyribonucleoside catabolic process
GO:0110052 toxic metabolite repair
Cellular Component
GO:0005737 cytoplasm
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:1z5n, PDBe:1z5n, PDBj:1z5n
PDBsum1z5n
PubMed16109423
UniProtP0AF12|MTNN_ECOLI 5'-methylthioadenosine/S-adenosylhomocysteine nucleosidase (Gene Name=mtnN)

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