3V97

Crystal structure of bifunctional methyltransferase YcbY (RlmLK) from Escherichia coli, SAH binding

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	RlmL_1st	e3v97A4	A: a+b two layers	X: Alpha-beta plaits	H: Ferredoxin-like domain in ThiI (From Topology)	T: Ferredoxin-like domain in ThiI	F: RlmL_1st	ECOD (1.6)
A	RlmL_2nd	e3v97A3	A: a+b two layers	X: THUMP domain-like (From Topology)	H: THUMP domain-like (From Topology)	T: THUMP domain-like	F: RlmL_2nd	ECOD (1.6)
A	Methyltransf_11_4	e3v97A2	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	UPF0020	e3v97A1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: UPF0020	ECOD (1.6)
B	RlmL_1st	e3v97B2	A: a+b two layers	X: Alpha-beta plaits	H: Ferredoxin-like domain in ThiI (From Topology)	T: Ferredoxin-like domain in ThiI	F: RlmL_1st	ECOD (1.6)
B	RlmL_2nd	e3v97B1	A: a+b two layers	X: THUMP domain-like (From Topology)	H: THUMP domain-like (From Topology)	T: THUMP domain-like	F: RlmL_2nd	ECOD (1.6)
B	Methyltransf_11_4	e3v97B3	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	UPF0020	e3v97B4	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: UPF0020	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.2130.30	Alpha Beta	2-Layer Sandwich	VC0802-like		CATH (4.3.0)
A	3.40.50.150	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Vaccinia Virus protein VP39	CATH (4.3.0)
A	3.30.750.80	Alpha Beta	2-Layer Sandwich	Transcription Regulator spoIIAA	RNA methyltransferase domain (HRMD) like	CATH (4.3.0)
B	3.30.2130.30	Alpha Beta	2-Layer Sandwich	VC0802-like		CATH (4.3.0)
B	3.40.50.150	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Vaccinia Virus protein VP39	CATH (4.3.0)
B	3.30.750.80	Alpha Beta	2-Layer Sandwich	Transcription Regulator spoIIAA	RNA methyltransferase domain (HRMD) like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF10672	S-adenosylmethionine-dependent methyltransferase (Methyltrans_SAM)	S-adenosylmethionine-dependent methyltransferase	-	Family
A, B	PF01170	RMKL-like, methyltransferase domain (UPF0020)	RMKL-like, methyltransferase domain	This domain is the methyltransferase domain found in ribosomal RNA large subunit methyltransferase K/L from Escherichia coli (RmlKL), tRNA (guanine(10)-N2)-dimethyltransferase from Methanocaldococcus jannaschii and similar proteins, which have a THU ...	This domain is the methyltransferase domain found in ribosomal RNA large subunit methyltransferase K/L from Escherichia coli (RmlKL), tRNA (guanine(10)-N2)-dimethyltransferase from Methanocaldococcus jannaschii and similar proteins, which have a THUMP domain at the N-terminal [1-4].	Domain
A, B	PF02926	THUMP domain (THUMP)	THUMP domain	The THUMP domain is named after after thiouridine synthases, methylases and PSUSs [1]. The THUMP domain consists of about 110 amino acid residues. This domain is found in many tRNA modification enzymes classified into five types, namely 4-thiouridine ...	The THUMP domain is named after after thiouridine synthases, methylases and PSUSs [1]. The THUMP domain consists of about 110 amino acid residues. This domain is found in many tRNA modification enzymes classified into five types, namely 4-thiouridine synthetase, deaminase, methyltransferase, a partner protein of acetyltransferase and pseudouridine synthase [3]. The structure of ThiI reveals that the THUMP has a fold unlike that of previously characterised RNA-binding domains [2-3] and was first predicted to function by delivering a variety of RNA modification enzymes to their targets [1]. Studies performed in tRNA 4-thiouridine synthetase, tRNA methyltransferases and tRNA deaminase suggest that the THUMP domain captures the 3'-end of RNA but in some cases this is not applicable due to the modification patterns observed in tRNA [3]. Several THUMP-related proteins are also involved in other RNAs modifications, such as rRNA modification [3].	Domain
A, B	PF22020	RlmL ferredoxin-like domain (RlmL_1st)	RlmL ferredoxin-like domain	This entry represents the ferredoxin-like domain found at the N-terminal of RmlL, referred to as NFLD domain usually fused to the THUMP domain [1]. Ribosomal RNA large subunit methyltransferase K/L from E.coli (also known as YcbY) specifically methyl ...	This entry represents the ferredoxin-like domain found at the N-terminal of RmlL, referred to as NFLD domain usually fused to the THUMP domain [1]. Ribosomal RNA large subunit methyltransferase K/L from E.coli (also known as YcbY) specifically methylates the guanine in positions 2445 and 2069 of 23S rRNA before its assembly into 50S subunits [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Ribosomal RNA large subunit methyltransferase L	RNA 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 N-methyltransferase activity methyltransferase activity catalytic activity rRNA (guanine-N2-)-methyltransferase activity rRNA (guanine) methyltransferase activity 23S rRNA (guanine(2445)-N(2))-methyltransferase activity RNA 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 N-methyltransferase activity methyltransferase activity catalytic activity rRNA (guanine-N2-)-methyltransferase activity rRNA (guanine) methyltransferase activity 23S rRNA (guanine(2445)-N(2))-methyltransferase activity RNA binding binding organic cyclic compound binding nucleic acid binding rRNA (guanine-N7-)-methyltransferase activity	ribonucleoprotein complex biogenesis rRNA methylation RNA metabolic process rRNA processing rRNA modification nucleobase-containing compound metabolic process cellular component biogenesis RNA biosynthetic process ribosome biogenesis nucleic acid biosynthetic process cellular component organization or biogenesis RNA processing rRNA metabolic process primary metabolic process ribonucleoprotein complex biogenesis rRNA methylation RNA metabolic process rRNA processing rRNA modification nucleobase-containing compound metabolic process cellular component biogenesis RNA biosynthetic process ribosome biogenesis nucleic acid biosynthetic process cellular component organization or biogenesis RNA processing rRNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process macromolecule methylation RNA modification biosynthetic process methylation macromolecule modification metabolic process cellular process macromolecule metabolic process rRNA base methylation RNA methylation	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR054170	RlmL, ferredoxin-like domain	Domain
A, B	IPR002052	DNA methylase, N-6 adenine-specific, conserved site	Conserved Site
A, B	IPR019614	S-adenosylmethionine-dependent methyltransferase	Domain
A, B	IPR017244	Ribosomal RNA large subunit methyltransferase K/L	Family
A, B	IPR029063	S-adenosyl-L-methionine-dependent methyltransferase superfamily	Homologous Superfamily
A, B	IPR000241	Ribosomal RNA large subunit methyltransferase K/L-like, methyltransferase domain	Domain
A, B	IPR053943	Ribosomal RNA large subunit methyltransferase K/L-like, conserved site	Conserved Site
A, B	IPR004114	THUMP domain	Domain

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.