Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad1rtua_ Alpha and beta proteins (a+b) Microbial ribonucleases Microbial ribonucleases Fungal ribonucleases RNase U2 (Ustilago sphaerogena ) [TaxId: 5271 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyFungal ribonucleases 8021175 4001845 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyMicrobial ribonucleases 8033555 3001847 SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ARibonucleasee1rtuA1 A: a+b two layersX: Microbial ribonucleases-likeH: Microbial ribonucleases (From Topology)T: Microbial ribonucleasesF: RibonucleaseECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.10.450.30 Alpha Beta Roll Nuclear Transport Factor 2 Chain: A,CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00545ribonuclease (Ribonuclease)ribonucleaseThis enzyme hydrolyses RNA and oligoribonucleotides.Domain

InterPro: Protein Family Classification InterPro Database Homepage

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
ribonuclease U2  M-CSA #908

Catalyses the two-stage endonucleolytic cleavage of nucleoside 3'-phosphates and 3'-phosphooligonucleotides ending in A-P or G-P with 2',3'-cyclic phosphate intermediates. The enzyme contains an isoaspartate residue.

Defined by 4 residues: HIS:A-41GLU:A-62ARG:A-85HIS:A-101
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