Structure of PDB 1ifs Chain A Binding Site BS01

Receptor Information
>1ifs Chain A (length=258) Species: 3988 (Ricinus communis) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
YPIINFTTAGATVQSYTNFIRAVRGRLTTGADVRHEIPVLPNRVGLPINQ
RFILVELSNHAELSVTLALDVTNAYVVGYRAGNSAYFFHPDNQEDAEAIT
HLFTDVQNRYTFAFGGNYDRLEQLAGNLRENIELGNGPLEEAISALYYYS
TGGTQLPTLARSFIICIQMISEAARFQYIEGEMRTRIRYNRRSAPDPSVI
TLENSWGRLSTAIQESNQGAFASPIQLQRRNGSKFSVYDVSILIPIIALM
VYRCAPPP
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 chain1ifs Chain A Residue 300 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1ifs X-ray structure of recombinant ricin A-chain at 1.8 A resolution.
Resolution2.0 Å
Binding residue
(original residue number in PDB)		Y80 V81 G121 Y123 I172 R180
Binding residue
(residue number reindexed from 1)		Y75 V76 G116 Y118 I167 R175
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) V81 E177 R180
Catalytic site (residue number reindexed from 1) V76 E172 R175
Enzyme Commision number 3.2.2.22: rRNA N-glycosylase.
Gene Ontology
Molecular Function
GO:0030598 rRNA N-glycosylase activity
Biological Process
GO:0017148 negative regulation of translation

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Molecular Function
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Biological Process
External links
PDB RCSB:1ifs, PDBe:1ifs, PDBj:1ifs
PDBsum1ifs
PubMed7990130
UniProtP02879|RICI_RICCO Ricin

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