6ZXW

Structure of Archaeoglobus fulgidus Trm11-Trm112 m2G10 tRNA methyltransferase complex bound to sinefungin


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
A [auth G]F_UNCLASSIFIEDe6zxwG1 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin-like domain in ThiI (From Topology)T: Ferredoxin-like domain in ThiIF: F_UNCLASSIFIEDECOD (1.6)
A [auth G]F_UNCLASSIFIEDe6zxwG2 A: a+b two layersX: THUMP domain-like (From Topology)H: THUMP domain-like (From Topology)T: THUMP domain-likeF: F_UNCLASSIFIEDECOD (1.6)
A [auth G]PF01170e6zxwG3 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: S-adenosyl-L-methionine-dependent methyltransferasesF: PF01170ECOD (1.6)
B [auth H]PF03966e6zxwH1 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: PF03966ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A [auth G]PF01170RMKL-like, methyltransferase domain (UPF0020)RMKL-like, methyltransferase domainThis domain is the methyltransferase domain found in ribosomal RNA large subunit methyltransferase K/L from Escherichia coli (RmlKL), tRNA (guanine(10)-N2)-dimethyltransferase from Methanocaldococcus jannaschii and similar proteins, which have a THU ...This domain is the methyltransferase domain found in ribosomal RNA large subunit methyltransferase K/L from Escherichia coli (RmlKL), tRNA (guanine(10)-N2)-dimethyltransferase from Methanocaldococcus jannaschii and similar proteins, which have a THUMP domain at the N-terminal [1-4].
Domain
A [auth G]PF02926THUMP domain (THUMP)THUMP domainThe THUMP domain is named after after thiouridine synthases, methylases and PSUSs [1]. The THUMP domain consists of about 110 amino acid residues. This domain is found in many tRNA modification enzymes classified into five types, namely 4-thiouridine ...The THUMP domain is named after after thiouridine synthases, methylases and PSUSs [1]. The THUMP domain consists of about 110 amino acid residues. This domain is found in many tRNA modification enzymes classified into five types, namely 4-thiouridine synthetase, deaminase, methyltransferase, a partner protein of acetyltransferase and pseudouridine synthase [3]. The structure of ThiI reveals that the THUMP has a fold unlike that of previously characterised RNA-binding domains [2-3] and was first predicted to function by delivering a variety of RNA modification enzymes to their targets [1]. Studies performed in tRNA 4-thiouridine synthetase, tRNA methyltransferases and tRNA deaminase suggest that the THUMP domain captures the 3'-end of RNA but in some cases this is not applicable due to the modification patterns observed in tRNA [3]. Several THUMP-related proteins are also involved in other RNAs modifications, such as rRNA modification [3].
Domain
B [auth H]PF03966Trm112p-like protein (Trm112p)Trm112p-like proteinThe function of this family is uncertain. The bacterial members are about 60-70 amino acids in length and the eukaryotic examples are about 120 amino acids in length. The C terminus contains the strongest conservation. Trm112p is required for tRNA ...The function of this family is uncertain. The bacterial members are about 60-70 amino acids in length and the eukaryotic examples are about 120 amino acids in length. The C terminus contains the strongest conservation. Trm112p is required for tRNA methylation in S. cerevisiae and is found in complexes with 2 tRNA methylases (TRM9 and TRM11) also with putative methyltransferase YDR140W [1]. The zinc-finger protein Ynr046w is plurifunctional and a component of the eRF1 methyltransferase in yeast [2]. The crystal structure of Ynr046w has been determined to 1.7 A resolution. It comprises a zinc-binding domain built from both the N- and C-terminal sequences and an inserted domain, absent from bacterial and archaeal orthologs of the protein, composed of three alpha-helices [2].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth G]tRNA (Guanine(10)-N2)-dimethyltransferase
B [auth H]Uncharacterized protein -