Structure of PDB 1z5n Chain B Binding Site BS02

Receptor Information
>1z5n Chain B (length=232) Species: 562 (Escherichia coli) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
MKIGIIGAMEEQVTLLRDKIENRQTISLGGCEIYTGQLNGTEVALLKSGI
GKVAAALGATLLLEHCKPDVIINTGSAGGLAPTLKVGDIVVSDEARYHDA
DVTAFGYEYGQLPGCPAGFKADDKLIAAAEACIAELNLNAVRGLIVSGDA
FINGSVGLAKIRHNFPQAIAVEMEATAIAHVCHNFNVPFVVVRAISDVAD
QQSHLSFDEFLAVAAKQSSLMVESLVQKLAHG
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 B Residue 236 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

[Spin on] [Spin off] [Reset]
[High quality] [Low quality]
[White background] [Black background]
[Spin on] [Spin off] [Reset]
[High quality] [Low quality]
[White background] [Black background]
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 E172 M173 D197 A199
Binding residue
(residue number reindexed from 1)		A77 G78 F151 I152 E172 M173 D197 A199
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

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:1z5n, PDBe:1z5n, PDBj:1z5n
PDBsum1z5n
PubMed16109423
UniProtP0AF12|MTNN_ECOLI 5'-methylthioadenosine/S-adenosylhomocysteine nucleosidase (Gene Name=mtnN)

[Back to BioLiP]