Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyRNA 3'-terminal phosphate cyclase, RPTC 8023378 4001419 SCOP2 (2022-06-29)
ASCOP2 FamilyRNA 3'-terminal phosphate cyclase, RPTC, insert domain 8032016 4000489 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyEPT/RTPC-like 8035758 3001530 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyRNA 3'-terminal phosphate cyclase, RPTC, insert domain 8044394 3000413 SCOP2 (2022-06-29)
BSCOP2B SuperfamilyEPT/RTPC-like 8035758 3001530 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyEPT/RTPC-like 8035758 3001530 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyRNA 3'-terminal phosphate cyclase, RPTC, insert domain 8044394 3000413 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ARTCe1qmhA1 A: a+b two layersX: IF3-likeH: EPT/RTPC-like (From Topology)T: EPT/RTPC-likeF: RTCECOD (1.6)
ARTC_inserte1qmhA2 A: a+b three layersX: Thioredoxin-likeH: RNA 3'-terminal phosphate cyclase, RPTC, insert domain (From Topology)T: RNA 3'-terminal phosphate cyclase, RPTC, insert domainF: RTC_insertECOD (1.6)
BRTCe1qmhB1 A: a+b two layersX: IF3-likeH: EPT/RTPC-like (From Topology)T: EPT/RTPC-likeF: RTCECOD (1.6)
BRTC_inserte1qmhB2 A: a+b three layersX: Thioredoxin-likeH: RNA 3'-terminal phosphate cyclase, RPTC, insert domain (From Topology)T: RNA 3'-terminal phosphate cyclase, RPTC, insert domainF: RTC_insertECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF05189RNA 3'-terminal phosphate cyclase (RTC), insert domain (RTC_insert)RNA 3'-terminal phosphate cyclase (RTC), insert domainRNA cyclases are a family of RNA-modifying enzymes that are conserved in all cellular organisms. They catalyse the ATP-dependent conversion of the 3'-phosphate to the 2',3'-cyclic phosphodiester at the end of RNA, in a reaction involving formation o ...RNA cyclases are a family of RNA-modifying enzymes that are conserved in all cellular organisms. They catalyse the ATP-dependent conversion of the 3'-phosphate to the 2',3'-cyclic phosphodiester at the end of RNA, in a reaction involving formation of the covalent AMP-cyclase intermediate [1]. The structure of RTC demonstrates that RTCs are comprised two domain. The larger domain contains an insert domain of approximately 100 amino acids [1].
Domain
A, B
PF01137RNA 3'-terminal phosphate cyclase (RTC)RNA 3'-terminal phosphate cyclaseRNA cyclases are a family of RNA-modifying enzymes that are conserved in all cellular organisms. They catalyse the ATP-dependent conversion of the 3'-phosphate to the 2',3'-cyclic phosphodiester at the end of RNA, in a reaction involving formation o ...RNA cyclases are a family of RNA-modifying enzymes that are conserved in all cellular organisms. They catalyse the ATP-dependent conversion of the 3'-phosphate to the 2',3'-cyclic phosphodiester at the end of RNA, in a reaction involving formation of the covalent AMP-cyclase intermediate [1]. The structure of RTC demonstrates that RTCs are comprised two domain. The larger domain contains an insert domain of approximately 100 amino acids [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
RNA 3'-TERMINAL PHOSPHATE CYCLASE

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

ChainsEnzyme NameDescriptionCatalytic Residues
RNA-3'-phosphate cyclase  M-CSA #882

The enzyme converts the 3'-terminal phosphate of various RNA substrates into the 2',3'-cyclic phosphodiester in an ATP-dependent reaction. The enzyme also has a polynucleotide 5' adenylylation activity [PMID:21098490 ]. The biological role of this enzyme is unknown but it is likely to function in some aspects of cellular RNA processing.

Defined by 2 residues: GLU:A-14HIS:A-309
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