Annotations: 4MTL

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	An_peroxidase	e4mtlB1	A: a/b three-layered sandwiches	X: Ribonuclease H-like	H: ARM repeat	T: ARM repeat	F: An_peroxidase	ECOD (v294.1)
A	An_peroxidase	e4mtlA1	A: a/b three-layered sandwiches	X: Ribonuclease H-like	H: ARM repeat	T: ARM repeat	F: An_peroxidase	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.50.150	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Vaccinia Virus protein VP39	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF10294	Lysine methyltransferase (Methyltransf_16)	Lysine methyltransferase	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Protein-lysine methyltransferase METTL21C	protein-lysine N-methyltransferase activity catalytic activity, acting on a protein transferase activity, transferring one-carbon groups lysine N-methyltransferase activity protein methyltransferase activity N-methyltransferase activity transferase activity methyltransferase activity catalytic activity S-adenosylmethionine-dependent methyltransferase activity protein binding binding heat shock protein binding	peptidyl-lysine methylation protein methylation peptidyl-lysine modification primary metabolic process macromolecule methylation protein alkylation methylation macromolecule modification peptidyl-amino acid modification metabolic process cellular process protein metabolic process macromolecule metabolic process protein modification process peptidyl-lysine methylation protein methylation peptidyl-lysine modification primary metabolic process macromolecule methylation protein alkylation methylation macromolecule modification peptidyl-amino acid modification metabolic process cellular process protein metabolic process macromolecule metabolic process protein modification process regulation of calcium ion transport regulation of localization regulation of cellular process transport monoatomic ion transmembrane transport sarcoplasmic reticulum calcium ion transport regulation of monoatomic ion transmembrane transport release of sequestered calcium ion into cytosol by sarcoplasmic reticulum calcium ion transport metal ion transport regulation of calcium ion transmembrane transport monoatomic cation transmembrane transport localization intercellular transport monoatomic ion transport monoatomic cation transport regulation of metal ion transport release of sequestered calcium ion into cytosol by endoplasmic reticulum regulation of biological process calcium ion transmembrane import into cytosol regulation of transport regulation of release of sequestered calcium ion into cytosol regulation of monoatomic ion transport biological regulation establishment of localization transmembrane transport release of sequestered calcium ion into cytosol regulation of transmembrane transport regulation of monoatomic cation transmembrane transport calcium ion transmembrane transport regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum cellular response to stimulus response to stimulus signaling response to endogenous stimulus cell death hormone-mediated signaling pathway cell communication apoptotic signaling pathway cellular response to endogenous stimulus cellular response to chemical stimulus hormone-mediated apoptotic signaling pathway response to hormone response to chemical signal transduction apoptotic process programmed cell death cellular response to hormone stimulus developmental process muscle structure development skeletal muscle organ development skeletal muscle tissue development anatomical structure development animal organ development muscle tissue development muscle organ development tissue development striated muscle tissue development response to ketone response to lipid response to steroid hormone cellular response to ketone cellular response to steroid hormone stimulus cellular response to dexamethasone stimulus response to glucocorticoid cellular response to glucocorticoid stimulus response to oxygen-containing compound cellular response to oxygen-containing compound cellular response to corticosteroid stimulus response to corticosteroid cellular response to lipid response to dexamethasone	cellular anatomical structure intracellular anatomical structure cytoplasm protein-containing complex membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR029063	S-adenosyl-L-methionine-dependent methyltransferase superfamily	Homologous Superfamily
A, B	IPR019410	Lysine 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.