Annotations: 3NK6

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	L30e-like	8095894	3001739	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	alpha/beta knot	8095895	3001122	SCOP2B (2022-06-29)
A	SCOP2 Family	RNA 2'-O ribose methyltransferase substrate binding domain	8046339	4002711	SCOP2 (2022-06-29)
A	SCOP2 Family	SpoU-like RNA 2'-O ribose methyltransferase	8095893	4002340	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	L30e-like	8095894	3001739	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	alpha/beta knot	8095895	3001122	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)
B		e3nk6B1	A: Alpha-beta plaits	X: Phage tail protein-like	H: Transmembrane protein 14A	T: Cytochrome_CBB3	F:	ECOD (20:10:01)
A		e3nk6A1	A: P-loop domains-like	X: P-loop domains-related	H: P-loop containing nucleoside triphosphate hydrolases	T: PyrI_C	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.30.1330.30	Alpha Beta	2-Layer Sandwich	60s Ribosomal Protein L30	Chain: A	CATH (4.3.0)
B	3.40.1280.10	Alpha Beta	3-Layer(aba) Sandwich	Alpha/beta knot	SPOUT methyltransferase, trefoil knot domain	CATH (4.3.0)
A	3.30.1330.30	Alpha Beta	2-Layer Sandwich	60s Ribosomal Protein L30	Chain: A	CATH (4.3.0)
A	3.40.1280.10	Alpha Beta	3-Layer(aba) Sandwich	Alpha/beta knot	SPOUT methyltransferase, trefoil knot domain	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	23S rRNA methyltransferase	RNA methyltransferase activity O-methyltransferase activity rRNA methyltransferase activity catalytic activity, acting on RNA transferase activity, transferring one-carbon groups catalytic activity, acting on a nucleic acid transferase activity catalytic activity, acting on a rRNA S-adenosylmethionine-dependent methyltransferase activity 23S rRNA (adenosine(1067)-2'-O)-methyltransferase activity methyltransferase activity rRNA (adenine) methyltransferase activity catalytic activity RNA 2'-O-methyltransferase activity RNA methyltransferase activity O-methyltransferase activity rRNA methyltransferase activity catalytic activity, acting on RNA transferase activity, transferring one-carbon groups catalytic activity, acting on a nucleic acid transferase activity catalytic activity, acting on a rRNA S-adenosylmethionine-dependent methyltransferase activity 23S rRNA (adenosine(1067)-2'-O)-methyltransferase activity methyltransferase activity rRNA (adenine) methyltransferase activity catalytic activity RNA 2'-O-methyltransferase activity RNA binding binding nucleic acid binding	response to stimulus response to chemical response to antibiotic	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR001537	tRNA/rRNA methyltransferase, SpoU type	Domain
A, B	IPR029026	tRNA (guanine-N1-)-methyltransferase, N-terminal	Homologous Superfamily
A, B	IPR051259	Ribosomal RNA Methyltransferase	Family
A, B	IPR029028	Alpha/beta knot methyltransferases	Homologous Superfamily
A, B	IPR006795	Thiostrepton-resistance methylase, N-terminal	Domain
A, B	IPR029064	Ribosomal protein eL30-like 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.