Annotations: 3BUS

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3busa_	Alpha and beta proteins (a/b)	S-adenosyl-L-methionine-dependent methyltransferases	S-adenosyl-L-methionine-dependent methyltransferases	automated matches	automated matches	(Lentzea aerocolonigenes ) [TaxId: 68170 ],	SCOPe (2.08)
B	d3busb_	Alpha and beta proteins (a/b)	S-adenosyl-L-methionine-dependent methyltransferases	S-adenosyl-L-methionine-dependent methyltransferases	automated matches	automated matches	(Lentzea aerocolonigenes ) [TaxId: 68170 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	S-adenosyl-L-methionine-dependent methyltransferases	8083964	3000118	SCOP2B (2022-06-29)
B	SCOP2 Family	Mycolic acid cyclopropane synthase	8083963	4003320	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	S-adenosyl-L-methionine-dependent methyltransferases	8083964	3000118	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	CMAS	e3busA1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: CMAS	ECOD (1.6)
B	CMAS	e3busB1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: CMAS	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.150	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Vaccinia Virus protein VP39	CATH (4.3.0)
B	3.40.50.150	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Vaccinia Virus protein VP39	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF08241	Methyltransferase domain (Methyltransf_11)	Methyltransferase domain	Members of this family are SAM dependent methyltransferases.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Methyltransferase	transferase activity, transferring one-carbon groups transferase activity methyltransferase activity S-adenosylmethionine-dependent methyltransferase activity catalytic activity demethylrebeccamycin--D-glucose O-methyltransferase activity	methylation metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR050447	Erg6/SMT methyltransferase	Family
A, B	IPR020803	Polyketide synthase, methyltransferase domain	Domain
A, B	IPR029063	S-adenosyl-L-methionine-dependent methyltransferase superfamily	Homologous Superfamily
A, B	IPR013216	Methyltransferase type 11	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.