Structure of PDB 3ahw Chain A

Receptor sequence
>3ahwA (length=114) Species: 5271 (Ustilago sphaerogena) [Search protein sequence]
CDIPQSTNCGGNVYSNDDINTAIQGALDDVANGDRPDNYPHQYYDEASED
ITLCCGSGPWSEFPLVYNGPYYSSRDNYVSPGPDRVIYQTNTGEFCATVT
HTGAASYDGFTQCS
3D structure
PDB3ahw Conformational variation revealed by the crystal structure of RNase U2A complexed with Ca ion and 2'-adenylic acid at 1.03 angstrom resolution.
ChainA
Resolution1.03 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) Y39 H41 E62 R85 H101 F110
Catalytic site (residue number reindexed from 1) Y39 H41 E62 R85 H101 F110
Enzyme Commision number 4.6.1.20: ribonuclease U2.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 2AM A Y39 H41 E62 G82 R85 H101 F110 Y39 H41 E62 G82 R85 H101 F110
BS02 CA A D29 V30 N32 D37 D29 V30 N32 D37
BS03 CA A D45 I51 D45 I51
Gene Ontology
Molecular Function
GO:0003723 RNA binding
GO:0004519 endonuclease activity
GO:0004521 RNA endonuclease activity
GO:0004540 RNA nuclease activity
GO:0016829 lyase activity
GO:0033899 ribonuclease U2 activity
GO:0046872 metal ion binding

View graph for
Molecular Function
External links
PDB RCSB:3ahw, PDBe:3ahw, PDBj:3ahw
PDBsum3ahw
PubMed20858208
UniProtP00654|RNU2_USTSP Ribonuclease U2 (Gene Name=RNU2)

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