6NEJ

scoulerine 9-O-methyltransferase from Thalictrum flavum complexed (13aS)-3,10-dimethoxy-5,8,13,13a-tetrahydro-6H-isoquino[3,2-a]isoquinoline-2,9-diol and with S-ADENOSYL-L-HOMOCYSTEINE

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d6neja1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	automated matches	automated matches	Yellow meadow rue (Thalictrum flavum subsp. glaucum ) [TaxId: 150095 ],	SCOPe (2.08)
A	d6neja2	Alpha and beta proteins (a/b)	S-adenosyl-L-methionine-dependent methyltransferases	S-adenosyl-L-methionine-dependent methyltransferases	automated matches	automated matches	Yellow meadow rue (Thalictrum flavum subsp. glaucum ) [TaxId: 150095 ],	SCOPe (2.08)
B	d6nejb1	All alpha proteins	DNA/RNA-binding 3-helical bundle	'Winged helix' DNA-binding domain	automated matches	automated matches	Yellow meadow rue (Thalictrum flavum subsp. glaucum ) [TaxId: 150095 ],	SCOPe (2.08)
B	d6nejb2	Alpha and beta proteins (a/b)	S-adenosyl-L-methionine-dependent methyltransferases	S-adenosyl-L-methionine-dependent methyltransferases	automated matches	automated matches	Yellow meadow rue (Thalictrum flavum subsp. glaucum ) [TaxId: 150095 ],	SCOPe (2.08)
B	d6nejb3	Artifacts	Tags	Tags	Tags	N-terminal Tags	Yellow meadow rue (Thalictrum flavum subsp. glaucum ) [TaxId: 150095 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Dimerisation	e6nejA2	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Dimerisation	ECOD (1.6)
A	Methyltransf_11_4	e6nejA1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: Methyltransf_11_4	ECOD (1.6)
B	Dimerisation	e6nejB2	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Dimerisation	ECOD (1.6)
B	Methyltransf_11_4	e6nejB1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: Methyltransf_11_4	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 (utative)
B	3.40.50.150	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Vaccinia Virus protein VP39	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF08100	Dimerisation domain (Dimerisation)	Dimerisation domain	This domain is found at the N-terminus of a variety of plant O-methyltransferases. It has been shown to mediate dimerisation of these proteins [1].	Domain
A, B	PF00891	O-methyltransferase domain (Methyltransf_2)	O-methyltransferase domain	This family includes a range of O-methyltransferases. These enzymes utilise S-adenosyl methionine.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	(S)-scoulerine 9-O-methyltransferase	transferase activity, transferring one-carbon groups transferase activity (S)-scoulerine 9-O-methyltransferase activity methyltransferase activity S-adenosylmethionine-dependent methyltransferase activity catalytic activity O-methyltransferase activity protein binding binding protein dimerization activity	methylation metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR001077	O-methyltransferase domain	Domain
A, B	IPR016461	O-methyltransferase COMT-type	Family
A, B	IPR029063	S-adenosyl-L-methionine-dependent methyltransferase superfamily	Homologous Superfamily
A, B	IPR012967	Plant methyltransferase dimerisation domain	Domain
A, B	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A, B	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily

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.