6L8E

Crystal structure of heterohexameric YoeB-YefM complex bound to 26bp-DNA

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
E	SCOP2B Superfamily	RelE-like	8099286	3000741	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	RelE-like	8099286	3000741	SCOP2B (2022-06-29)
M	SCOP2B Superfamily	RelE-like	8099286	3000741	SCOP2B (2022-06-29)
N	SCOP2B Superfamily	RelE-like	8099286	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	PF02604	e6l8eA1	A: a+b duplicates or obligate multimers	X: YefM-like (From Topology)	H: YefM-like (From Topology)	T: YefM-like	F: PF02604	ECOD (1.6)
B	PF02604	e6l8eB1	A: a+b duplicates or obligate multimers	X: YefM-like (From Topology)	H: YefM-like (From Topology)	T: YefM-like	F: PF02604	ECOD (1.6)
C	PF02604	e6l8eC1	A: a+b duplicates or obligate multimers	X: YefM-like (From Topology)	H: YefM-like (From Topology)	T: YefM-like	F: PF02604	ECOD (1.6)
D	PF02604	e6l8eD1	A: a+b duplicates or obligate multimers	X: YefM-like (From Topology)	H: YefM-like (From Topology)	T: YefM-like	F: PF02604	ECOD (1.6)
I	PF02604	e6l8eI1	A: a+b duplicates or obligate multimers	X: YefM-like (From Topology)	H: YefM-like (From Topology)	T: YefM-like	F: PF02604	ECOD (1.6)
J	PF02604	e6l8eJ1	A: a+b duplicates or obligate multimers	X: YefM-like (From Topology)	H: YefM-like (From Topology)	T: YefM-like	F: PF02604	ECOD (1.6)
K	PF02604	e6l8eK1	A: a+b duplicates or obligate multimers	X: YefM-like (From Topology)	H: YefM-like (From Topology)	T: YefM-like	F: PF02604	ECOD (1.6)
L	PF02604	e6l8eL1	A: a+b duplicates or obligate multimers	X: YefM-like (From Topology)	H: YefM-like (From Topology)	T: YefM-like	F: PF02604	ECOD (1.6)
E	PF06769	e6l8eE1	A: a+b two layers	X: RelE-like	H: RelE-like (From Topology)	T: RelE-like	F: PF06769	ECOD (1.6)
F	PF06769	e6l8eF1	A: a+b two layers	X: RelE-like	H: RelE-like (From Topology)	T: RelE-like	F: PF06769	ECOD (1.6)
M	PF06769	e6l8eM1	A: a+b two layers	X: RelE-like	H: RelE-like (From Topology)	T: RelE-like	F: PF06769	ECOD (1.6)
N	PF06769	e6l8eN1	A: a+b two layers	X: RelE-like	H: RelE-like (From Topology)	T: RelE-like	F: PF06769	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, I A, B, C, D, I, J, K, L	PF02604	Antitoxin Phd_YefM, type II toxin-antitoxin system (PhdYeFM_antitox)	Antitoxin Phd_YefM, type II toxin-antitoxin system	Members of this family act as antitoxins in type II toxin-antitoxin systems [1]. When bound to their toxin partners, they can bind DNA via the N-terminus and repress the expression of operons containing genes encoding the toxin and the antitoxin [2] ...	Members of this family act as antitoxins in type II toxin-antitoxin systems [1]. When bound to their toxin partners, they can bind DNA via the N-terminus and repress the expression of operons containing genes encoding the toxin and the antitoxin [2]. This domain complexes with Txe toxins containing Pfam:PF06769, Fic/DOC toxins containing Pfam:PF02661 and YafO toxins containing Pfam:PF13957.	Domain
E, F, M, N	PF06769	YoeB-like toxin of bacterial type II toxin-antitoxin system (YoeB_toxin)	YoeB-like toxin of bacterial type II toxin-antitoxin system	YoeB_toxin is a family of bacterial toxins that forms one component of the type II toxin-antitoxin system in E. coli whose antitoxin is represented by YefM, found in Pfam:PF02604. The plasmid encoded Axe-Txe proteins in Enterococcus faecium act as a ...	YoeB_toxin is a family of bacterial toxins that forms one component of the type II toxin-antitoxin system in E. coli whose antitoxin is represented by YefM, found in Pfam:PF02604. The plasmid encoded Axe-Txe proteins in Enterococcus faecium act as an antitoxin-toxin pair. When the plasmid is lost, the antitoxin is degraded relatively quickly by host enzymes. This allows the toxin to interact with its intracellular target, thus killing the cell or impeding cell growth [1]. These toxins are highly potent protein synthesis inhibitors, specifically blocking the initiation of translation. In the case of YoeB, it binds to the 50 S ribosomal subunit in 70 S ribosomes and interacts with the A site leading to mRNA cleavage at this site. As a result, the 3'-end portion of the mRNA is released from ribosomes, and translation initiation is effectively inhibited [2,3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, I A, B, C, D, I, J, K, L	YefM Antitoxin	-	-	-
E, F, M, N	YoeB toxin	endonuclease activity nuclease activity hydrolase activity, acting on ester bonds hydrolase activity catalytic activity	regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription regulation of biological process cellular metabolic process regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription regulation of biological process cellular metabolic process negative regulation of metabolic process primary metabolic process regulation of cellular metabolic process negative regulation of cellular biosynthetic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process negative regulation of macromolecule biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process cellular biosynthetic process RNA metabolic process RNA biosynthetic process nucleic acid biosynthetic process organic substance metabolic process negative regulation of cellular process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process biological regulation regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process negative regulation of biosynthetic process cellular process catabolic process macromolecule catabolic process organic cyclic compound catabolic process nucleobase-containing compound catabolic process nucleic acid catabolic process organic substance catabolic process RNA catabolic process	-
G, O	DNA (26-mer)	-	-	-
H, P	DNA (26-mer)	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, I A, B, C, D, I, J, K, L	IPR006442	Type II toxin-antitoxin system, antitoxin Phd/YefM	Family
A, B, C, D, I A, B, C, D, I, J, K, L	IPR036165	YefM-like superfamily	Homologous Superfamily
E, F, M, N	IPR009614	Toxin YoeB	Family
E, F, M, N	IPR035093	Toxin-antitoxin system, RelE/ParE toxin domain 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 R01GM133198.