Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyRegB-like 8045469 4004484 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyRelE-like 8090764 3000741 SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AREGB_T4e2hx6A1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: REGB_T4ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF10715T4-page Endoribonuclease RegB (REGB_T4)T4-page Endoribonuclease RegBThe RegB endoribonuclease encoded by bacteriophage T4 is a unique sequence-specific nuclease that cleaves in the middle of GGAG or, in a few cases, GGAU tetranucleotides, preferentially those found in the Shine-Dalgarno regions of early phage mRNAs. ...The RegB endoribonuclease encoded by bacteriophage T4 is a unique sequence-specific nuclease that cleaves in the middle of GGAG or, in a few cases, GGAU tetranucleotides, preferentially those found in the Shine-Dalgarno regions of early phage mRNAs. Phage RB49 in addition to RegB utilises Escherichia coli endoribonuclease E for the degradation of its transcripts for gene regB. The deduced primary structure of RegB proteins of 32 phages studied is almost identical to that of T4, while the sequences of RegB encoded by phages RB69, TuIa and RB49 show substantial divergence from their T4 counterpart. Rebuilding from the PDB:2hx6 structure, this family does not fall into the Lysozyme-like family, but rather is a new member of the RelE/YoeB structural and functional family of ribonucleases specialising in mRNA inactivation within the ribosome [2].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Ribonuclease - -

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR019653T4 endoribonuclease RegBFamily