Annotations: 5CIY

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	8038508	3000118	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)
A	B	e5ciyA1	A: a/b three-layered sandwiches	X: HTH	H: HUP domains	T: HUP domains	F: B	ECOD (v294.1)

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)
A	3.90.120.10	Alpha Beta	Alpha-Beta Complex	DNA Methylase	Chain A, domain 2	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth D]	DNA (5'-D(PGPTPCPAPGP(3DR)PGPCPAPTPGPG)-3')	-	-	-
B [auth C]	DNA (5'-D(PCPCPAPTPGPCPGPCPTPGPAPC)-3')	-	-	-
A	Modification methylase HhaI	DNA binding binding nucleic acid binding DNA (cytosine-5-)-methyltransferase activity DNA-methyltransferase activity catalytic activity, acting on DNA transferase activity, transferring one-carbon groups catalytic activity, acting on a nucleic acid transferase activity methyltransferase activity S-adenosylmethionine-dependent methyltransferase activity catalytic activity	methylation metabolic process cellular process biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response DNA restriction-modification system defense response to symbiont response to external stimulus primary metabolic process clearance of foreign intracellular DNA clearance of foreign intracellular nucleic acids DNA metabolic process methylation metabolic process cellular process biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response DNA restriction-modification system defense response to symbiont response to external stimulus primary metabolic process clearance of foreign intracellular DNA clearance of foreign intracellular nucleic acids DNA metabolic process response to biotic stimulus nucleic acid metabolic process nucleobase-containing compound metabolic process DNA modification defense response to other organism response to stress macromolecule modification response to external biotic stimulus macromolecule metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR031303	DNA methylase, C-5 cytosine-specific, conserved site	Conserved Site
A	IPR018117	DNA methylase, C-5 cytosine-specific, active site	Active Site
A	IPR001525	C-5 cytosine methyltransferase	Family
A	IPR029063	S-adenosyl-L-methionine-dependent methyltransferase superfamily	Homologous Superfamily
A	IPR050750	Cytosine-specific C5-methyltransferase	Family

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.