Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyPAP/OAS1 substrate-binding domain-like 8037640 3000941 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyNucleotidyltransferase-like 8037642 3000129 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APAP_assoce2b56A1 A: alpha arraysX: HhH/H2THH: SAM/DNA-glycosylaseT: PAP/OAS1 substrate-binding domainF: PAP_assocECOD (1.6)
AEUF08330e2b56A2 A: a+b two layersX: Alpha-beta plaitsH: RNA-binding domain, RBD (From Topology)T: RNA-binding domain, RBDF: EUF08330ECOD (1.6)
ANT_PAP_TUTasee2b56A3 A: a+b three layersX: Nucleotidyltransferase-likeH: Nucleotidyltransferase (From Topology)T: NucleotidyltransferaseF: NT_PAP_TUTaseECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A1.10.1410.10 Mainly Alpha Orthogonal Bundle Poly(a)-polymerase, middle domain CATH (4.3.0)
A3.30.460.50 Alpha Beta 2-Layer Sandwich Beta Polymerase domain 2CATH (4.3.0)
A3.30.70.1970 Alpha Beta 2-Layer Sandwich Alpha-Beta Plaits CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF03828Cid1 family poly A polymerase (PAP_assoc)Cid1 family poly A polymerase- Family
PF18528RNA editing 3' terminal uridylyl transferase 2 middle domain (Ret2_MD)RNA editing 3' terminal uridylyl transferase 2 middle domainPost-transcriptional RNA editing in Trypanosomatids (pathogenic protozoa) is catalyzed by a large multiprotein complex, the editosome. A key editosome enzyme, RNA editing terminal uridylyl transferase 2 (TUTase 2; RET2) catalyzes the uridylate additi ...Post-transcriptional RNA editing in Trypanosomatids (pathogenic protozoa) is catalyzed by a large multiprotein complex, the editosome. A key editosome enzyme, RNA editing terminal uridylyl transferase 2 (TUTase 2; RET2) catalyzes the uridylate addition reaction. RET2 structure consists of three domains: the N-terminal domain (NTD), the middle domain (MD) and the C-terminal domain (CTD). This MD domain is mainly composed of six helices and a four-stranded antiparallel beta-sheet. structural comparison reveals that the fold of this MD is topologically similar to the binding domains of several RNA-binding proteins such as the RNA-binding domain of the U1A spliceosomal protein, the RRM domain of the human La protein and the CTD of an archaeal CCA-adding enzyme. The CTD of the archaeal CCA-adding enzyme has been shown to bind double-stranded tRNA stem substrate through the alpha-helices regions. Hence it is suggested that this domain might be an RNA-binding domain [1].
Domain
PF22600Poly(A) RNA polymerase, mitochondrial-like, central palm domain (MTPAP-like_central)Poly(A) RNA polymerase, mitochondrial-like, central palm domainThis domain is found in human Poly(A) RNA polymerase, mitochondrial (MTPAP) and similar proteins from eukaryotes. MTPAP is a noncanonical polymerase that creates the 3' poly(A) tail of mitochondrial transcripts. It contains three domains: a N-termina ...This domain is found in human Poly(A) RNA polymerase, mitochondrial (MTPAP) and similar proteins from eukaryotes. MTPAP is a noncanonical polymerase that creates the 3' poly(A) tail of mitochondrial transcripts. It contains three domains: a N-terminal domain RL (Pfam:PF17797) and the canonical palm (this entry) and fingers domains. This domain shows a five -stranded beta-sheet with the three catalytic aspartic acid residues located on its surface [6], together with several alpha- helices, forming an alpha-beta configuration.
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
RNA editing complex protein MP57