Annotations: 7BU1

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	UPF0066	e7bu1B2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: UPF0066	ECOD (1.6)
B	KOG2942_like	e7bu1B1	A: a+b two layers	X: RelE-like	H: YaeB-like (From Topology)	T: YaeB-like	F: KOG2942_like	ECOD (1.6)
A	UPF0066	e7bu1A1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: UPF0066	ECOD (1.6)
A	KOG2942_like	e7bu1A2	A: a+b two layers	X: RelE-like	H: YaeB-like (From Topology)	T: YaeB-like	F: KOG2942_like	ECOD (1.6)

Chains	Accession	Name	Description	Comments	Source
A, B	PF18389	TrmO C-terminal domain (TrmO_C)	TrmO C-terminal domain	This domain is found at the C-terminus of TrmO tRNA methyltransferase proteins. This domain has a RelE fold.	Domain
A, B	PF01980	tRNA-methyltransferase O N-terminal domain (TrmO_N)	tRNA-methyltransferase O N-terminal domain	This family includes members such as TrmO (tRNA-methyltransferase O) also known as YaeB, which contains a single-sheeted beta-barrel structure. TrmO is an AdoMet-dependent methyltransferase responsible for m6t6A formation [1]. Its human homolog, is r ...	This family includes members such as TrmO (tRNA-methyltransferase O) also known as YaeB, which contains a single-sheeted beta-barrel structure. TrmO is an AdoMet-dependent methyltransferase responsible for m6t6A formation [1]. Its human homolog, is responsible for formation of m6t6A37 in cytoplasmic tRNASer. Lack of TrmO decreases attenuation activity of the thr operon, indicating that N6 methylation of m6t6A37 ensures efficient decoding of ACY codons [2]. In bacteria and eukaryotes, TrmO has a C-terminal domain containing the conserved DPRxxY motif. Where the Asp194 and Arg196 in this motif of E. coli TrmO are necessary for N6-methylation. However, no archaeal YaeB has a C-terminal domain containing the DPRxxY motif that is conserved in bacterial and mammalian TrmO homologs [1]. This entry represents the N-terminal domain of TrmO.	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Putative tRNA (Adenine(37)-N6)-methyltransferase	tRNA methyltransferase activity RNA methyltransferase activity catalytic activity, acting on RNA transferase activity, transferring one-carbon groups catalytic activity, acting on a nucleic acid catalytic activity, acting on a tRNA transferase activity S-adenosylmethionine-dependent methyltransferase activity tRNA (L-threonylcarbamoyladenosine(37)-C2) methyltransferase activity tRNA (adenine) methyltransferase activity methyltransferase activity catalytic activity	methylation metabolic process cellular process	-

Chains	Accession	Name	Type
A, B	IPR036414	YaeB, N-terminal domain superfamily	Homologous Superfamily
A, B	IPR023368	Uncharacterised protein family UPF0066, conserved site	Conserved Site
A, B	IPR040372	YaeB-like	Family
A, B	IPR023370	TrmO-like, N-terminal domain	Domain
A, B	IPR041369	TrmO, C-terminal	Domain
A, B	IPR036413	YaeB-like superfamily	Homologous Superfamily