9NNH | pdb_00009nnh

Cryo-EM structure of the Retron Ec78 complex, PtuA:PtuB:RT (4:2:2)

External Resource: Annotation

Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth C], B [auth D], C [auth E], D [auth F]	PF13304	AAA domain, putative AbiEii toxin, Type IV TA system (AAA_21)	AAA domain, putative AbiEii toxin, Type IV TA system	Several members are annotated as being of the abortive phage resistance system, in which case the family would be acting as the toxin for a type IV toxin-antitoxin resistance system.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
J [auth L], K [auth X]	RNA (41-MER)	-	-	-
I [auth N], L [auth M]	DNA (73-MER)	-	-	-
F [auth B], G [auth A]	Retron I-A Ec78 reverse transcriptase	RNA-directed DNA polymerase activity catalytic activity, acting on DNA DNA polymerase activity catalytic activity, acting on a nucleic acid transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups RNA binding binding nucleic acid binding	biological process involved in interspecies interaction between organisms defense response to virus response to stimulus defense response response to other organism response to stress response to external stimulus response to external biotic stimulus response to virus response to biotic stimulus	-
E [auth J], H [auth K]	Retron I-A effector PtuB	endonuclease activity nuclease activity catalytic activity, acting on a nucleic acid catalytic activity	biological process involved in interspecies interaction between organisms defense response to virus response to stimulus defense response response to other organism response to stress response to external stimulus response to external biotic stimulus response to virus response to biotic stimulus	-
A [auth C], B [auth D], C [auth E], D [auth F]	Retron I-A effector PtuA	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity ATP-dependent activity	cellular response to stimulus double-strand break repair response to stimulus primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process cellular response to stress DNA damage response response to stress metabolic process cellular process macromolecule metabolic process DNA repair cellular response to stimulus double-strand break repair response to stimulus primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process cellular response to stress DNA damage response response to stress metabolic process cellular process macromolecule metabolic process DNA repair biological process involved in interspecies interaction between organisms defense response to virus defense response response to other organism response to external stimulus response to external biotic stimulus response to virus response to biotic stimulus nucleobase-containing compound biosynthetic process DNA synthesis involved in DNA repair macromolecule biosynthetic process nucleic acid biosynthetic process biosynthetic process DNA biosynthetic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
F [auth B], G [auth A]	IPR000477	Reverse transcriptase domain	Domain
F [auth B], G [auth A]	IPR051083	Group II Intron Splicing and Mobility/Defense	Family
F [auth B], G [auth A]	IPR000123	RNA-directed DNA polymerase (reverse transcriptase), msDNA	Family
F [auth B], G [auth A]	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
E [auth J], H [auth K]	IPR013467	Retron Ec78 putative HNH endonuclease-like	Family
E [auth J], H [auth K]	IPR053575	Retron Ec78 HNH endonuclease	Family
A [auth C], B [auth D], C [auth E], D [auth F]	IPR053498	Retron-associated ATPase	Family
A [auth C], B [auth D], C [auth E], D [auth F]	IPR003959	ATPase, AAA-type, core	Domain
A [auth C], B [auth D], C [auth E], D [auth F]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	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.