Annotations: 7V6L

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Dimerisation	e7v6lA2	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Dimerisation	ECOD (1.6)
A	Methyltransf_11_2	e7v6lA1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: Methyltransf_11_2	ECOD (1.6)
B	Dimerisation	e7v6lB2	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Dimerisation	ECOD (1.6)
B	Methyltransf_11_2	e7v6lB1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: Methyltransf_11_2	ECOD (1.6)

Chains	Accession	Name	Description	Comments	Source
A, B	PF08100	Plant O-methyltransferase dimerisation domain (Dimerisation)	Plant O-methyltransferase dimerisation domain	This domain is found at the N-terminus of plant O-methyltransferases involved in phenylpropanoid metabolism, including caffeic acid O-methyltransferase (COMT), isoflavone O-methyltransferase (IOMT), and chalcone O-methyltransferase (ChOMT). It media ...	This domain is found at the N-terminus of plant O-methyltransferases involved in phenylpropanoid metabolism, including caffeic acid O-methyltransferase (COMT), isoflavone O-methyltransferase (IOMT), and chalcone O-methyltransferase (ChOMT). It mediates dimerisation of these enzymes, which is critical for their activity [1-4]. The dimerisation domain forms the central core of the homodimer, with the SAM-binding domains located peripherally [1,3,4]. Dimerisation buries ~30% of the total surface area of the dimer [3]. The domain also contributes to forming the back wall of the substrate binding cavity of the partner monomer [2-4]. Structurally, the dimerisation domain consists primarily of alpha-helices [1-4]. Crystal structures reveal the domain is relatively rigid compared to the more mobile SAM-binding domain, which undergoes conformational changes upon substrate binding [4].	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

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

Chains	Accession	Name	Type
A, B	IPR012967	Plant O-methyltransferase dimerisation domain	Domain
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	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A, B	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily