Structure of PDB 3ovb Chain B Binding Site BS04

Receptor Information

>3ovb Chain B (length=437) Species: 2234 (Archaeoglobus fulgidus)

MKVEEILEKALELVIPDEEEVRKGREAEEELRRRLDELGVEYVFVGSYAR
NTWLKGSLEIDVFLLFPEEFSKEELRERGLEIGKAVLDSYEIRYAEHPYV
HGVVKGVEVDVVPCYKLKEPKNIKSAVDRTPFHHKWLEGRIKGKENEVRL
LKGFLKANGIYGAEYKVRGFSGYLCELLIVFYGSFLETVKNARRWTRRTV
IDVAKGEVRKGEEFFVVDPVDEKRNVAANLSLDNLARFVHLCREFMEAPS
LGFFKPKHPLEIEPERLRKIVEERGTAVFAVKFRKPDIVDDNLYPQLERA
SRKIFEFLERENFMPLRSAFKASEEFCYLLFECQIKEISRVFRRMGPQFE
DERNVKKFLSRNRAFRPFIENGRWWAFEMRKFTTPEEGVRSYASTHWHTL
GKNVGESIREYFEIISGEKLFKEPVTAELCEMMGVKD

Ligand information

• Ligand ID: MG
• InChI: InChI=1S/Mg/q+2
• InChIKey: JLVVSXFLKOJNIY-UHFFFAOYSA-N
• SMILES:
  ACDLabs 10.04
  OpenEye OEToolkits 1.5.0: [Mg+2]
  CACTVS 3.341: [Mg++]
• Formula: Mg
• Name: MAGNESIUM ION
• DrugBank: DB01378
• PDB chain: 3ovb Chain B Residue 902

Receptor-Ligand Complex Structure

Structure summary

• PDB: 3ovb How the CCA-Adding Enzyme Selects Adenine over Cytosine at Position 76 of tRNA.
• Resolution: 1.95 Å
• Binding residue (original residue number in PDB): E59 D61
• Binding residue (residue number reindexed from 1): E59 D61
• Annotation score: 1

Enzymatic activity

• Enzyme Commision number: 2.7.7.72: CCA tRNA nucleotidyltransferase.

Gene Ontology

Molecular Function

• GO:0000049 tRNA binding
• GO:0000287 magnesium ion binding
• GO:0003723 RNA binding
• GO:0004810 CCA tRNA nucleotidyltransferase activity
• GO:0005524 ATP binding
• GO:0016779 nucleotidyltransferase activity
• GO:0046872 metal ion binding
• GO:0160016 CCACCA tRNA nucleotidyltransferase activity

Biological Process

• GO:0001680 tRNA 3'-terminal CCA addition
• GO:0008033 tRNA processing
• GO:0031123 RNA 3'-end processing
• GO:0042245 RNA repair
• GO:0106354 tRNA surveillance

External links

• PDB: RCSB:3ovb, PDBe:3ovb, PDBj:3ovb
• PDBsum: 3ovb
• PubMed: 21071662
• UniProt: O28126|CCA_ARCFU CCA-adding enzyme (Gene Name=cca)