Annotations: 4ML2

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d4ml2a_	Alpha and beta proteins (a+b)	RelE-like	RelE-like	automated matches	automated matches	(Escherichia coli K-12 ) [TaxId: 83333 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	RelE-like	8063330	3000741	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	YafQ_toxin	e4ml2A1	A: a+b two layers	X: RelE-like	H: RelE-like (From Topology)	T: RelE-like	F: YafQ_toxin	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.2310.20	Alpha Beta	2-Layer Sandwich	YaeB-like fold	RelE-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF15738	Bacterial toxin of type II toxin-antitoxin system, YafQ (YafQ_toxin)	Bacterial toxin of type II toxin-antitoxin system, YafQ	YafQ is a family of bacterial toxin ribonucleases of type II toxin-antitoxin systems. The E.coli gene is expressed from the dinB operon [1,2]. The cognate antitoxin for the E. coli protein is DinJ, in family RelB_antitoxin, Pfam:PF02604.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	mRNA interferase YafQ	DNA binding binding nucleic acid binding ribonucleoprotein complex binding protein-containing complex binding ribosome binding endonuclease activity nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on RNA RNA endonuclease activity catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity DNA binding binding nucleic acid binding ribonucleoprotein complex binding protein-containing complex binding ribosome binding endonuclease activity nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on RNA RNA endonuclease activity catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity catalytic activity RNA binding endonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 3'-phosphomonoesters RNA endonuclease activity, producing 3'-phosphomonoesters	regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of DNA-templated transcription regulation of biological process negative regulation of metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process cellular process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process catabolic process macromolecule catabolic process RNA catabolic process mRNA catabolic process mRNA metabolic process nucleobase-containing compound catabolic process negative regulation of gene expression nucleic acid catabolic process response to stimulus response to chemical response to antibiotic regulation of growth growth cellular component disassembly protein-containing complex organization protein-containing complex disassembly translation cellular component organization translational termination cellular component organization or biogenesis protein metabolic process cell aggregation biofilm formation biological process involved in intraspecies interaction between organisms single-species biofilm formation aggregation of unicellular organisms	protein-containing complex transcription regulator complex toxin-antitoxin complex transcription repressor complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR007712	Toxin-antitoxin system, RelE/ParE toxin family	Family
A	IPR035093	Toxin-antitoxin system, RelE/ParE toxin domain superfamily	Homologous Superfamily
A	IPR004386	Toxin-antitoxin system, YafQ-like toxin	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.