4D7K | pdb_00004d7k

Crystal structure of N,N-8-amino-8-demethyl-D-riboflavin dimethyltransferase (RosA) from Streptomyces davawensis

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
F	SCOP2B Superfamily	S-adenosyl-L-methionine-dependent methyltransferases	8093263	3000118	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Winged helix DNA-binding domain	8093262	3000034	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	S-adenosyl-L-methionine-dependent methyltransferases	8093263	3000118	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Winged helix DNA-binding domain	8093262	3000034	SCOP2B (2022-06-29)
D	SCOP2 Family	Plant O-methyltransferase-like	8081393	4000240	SCOP2 (2022-06-29)
D	SCOP2 Superfamily	S-adenosyl-L-methionine-dependent methyltransferases	8093263	3000118	SCOP2 (2022-06-29)
D	SCOP2 Superfamily	Winged helix DNA-binding domain	8093262	3000034	SCOP2 (2022-06-29)
C	SCOP2B Superfamily	S-adenosyl-L-methionine-dependent methyltransferases	8093263	3000118	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Winged helix DNA-binding domain	8093262	3000034	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	S-adenosyl-L-methionine-dependent methyltransferases	8093263	3000118	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Winged helix DNA-binding domain	8093262	3000034	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	S-adenosyl-L-methionine-dependent methyltransferases	8093263	3000118	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Winged helix DNA-binding domain	8093262	3000034	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
F	Dimerisation2	e4d7kF1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Dimerisation2	ECOD (1.6)
F	Methyltransf_11_4	e4d7kF2	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)
E	Dimerisation2	e4d7kE2	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Dimerisation2	ECOD (1.6)
E	Methyltransf_11_4	e4d7kE1	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)
D	Dimerisation2	e4d7kD1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Dimerisation2	ECOD (1.6)
D	Methyltransf_11_4	e4d7kD2	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)
C	Dimerisation2	e4d7kC2	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Dimerisation2	ECOD (1.6)
C	Methyltransf_11_4	e4d7kC1	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	Dimerisation2	e4d7kB1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Dimerisation2	ECOD (1.6)
B	Methyltransf_11_4	e4d7kB2	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)
A	Dimerisation2	e4d7kA1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Dimerisation2	ECOD (1.6)
A	Methyltransf_11_4	e4d7kA2	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)
F	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (utative)
E	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (utative)
D	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (utative)
C	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (utative)
B	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (utative)
A	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F	PF08100	O-methyltransferase dimerisation domain (Dimerisation)	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 mediat ...	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].ED A0A553NLB0.1/265-321; A0A553NLB0.1/265-293;	Domain
A, B, C, D, E A, B, C, D, E, F	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, C, D, E A, B, C, D, E, F	SAM-DEPENDENT METHYLTRANSFERASES	O-methyltransferase activity transferase activity, transferring one-carbon groups transferase activity methyltransferase activity catalytic activity protein binding binding protein dimerization activity	methylation metabolic process cellular process antibiotic metabolic process biosynthetic process antibiotic biosynthetic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F	IPR012967	Caffeic acid 3-O-methyltransferase-like, dimerisation domain	Domain
A, B, C, D, E A, B, C, D, E, F	IPR029063	S-adenosyl-L-methionine-dependent methyltransferase superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR016461	O-methyltransferase-like	Family
A, B, C, D, E A, B, C, D, E, F	IPR001077	O-methyltransferase, C-terminal domain	Domain
A, B, C, D, E A, B, C, D, E, F	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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.