Structure of PDB 3tw3 Chain A Binding Site BS02

Receptor Information
>3tw3 Chain A (length=336) Species: 83333 (Escherichia coli K-12) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
RMIALDGAQGEGGGQILRSALSLSMITGQPFTITSIRAGRAKPGLLRQHL
TAVKAATEICGATVEGAELGSQRLLFRPGTVRGGDYRFAIGSAGSCTLVL
QTVLPALWFADGPSRVEVSGGTDNPSAPPADFIRRVLEPLLAKIGIHQQT
TLLRHGFYPAGGGVVATEVSPVASFNTLQLGERGNIVQMRGEVLLAGVPR
HVAEREIATLAGSFSLHEQNIHNLPRDQGPGNTVSLEVESENITERFFVV
GEKRVSAEVVAAQLVKEVKRYLASTAAVGEYLADQLVLPMALAGAGEFTV
AHPSSNLLTNIAVVERFLPVRFSLIETDGVTRVSIE
Ligand information
Ligand IDCO
InChIInChI=1S/Co/q+2
InChIKeyXLJKHNWPARRRJB-UHFFFAOYSA-N
SMILES
SoftwareSMILES
ACDLabs 10.04
OpenEye OEToolkits 1.5.0		[Co+2]
CACTVS 3.341[Co++]
FormulaCo
NameCOBALT (II) ION
ChEMBL
DrugBankDB14205
ZINC
PDB chain3tw3 Chain A Residue 501 [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]
PDB3tw3 Structures of RNA 3'-phosphate cyclase bound to ATP reveal the mechanism of nucleotidyl transfer and metal-assisted catalysis.
Resolution2.1 Å
Binding residue
(original residue number in PDB)		E14 R43
Binding residue
(residue number reindexed from 1)		E11 R40
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) E14 N309
Catalytic site (residue number reindexed from 1) E11 N306
Enzyme Commision number 6.5.1.4: RNA 3'-terminal-phosphate cyclase (ATP).
Gene Ontology
Molecular Function
GO:0003824 catalytic activity
GO:0003963 RNA-3'-phosphate cyclase activity
GO:0005524 ATP binding
GO:0016874 ligase activity
Biological Process
GO:0006396 RNA processing
Cellular Component
GO:0005737 cytoplasm

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:3tw3, PDBe:3tw3, PDBj:3tw3
PDBsum3tw3
PubMed22167800
UniProtP46849|RTCA_ECOLI RNA 3'-terminal phosphate cyclase (Gene Name=rtcA)

[Back to BioLiP]