Annotations: 1ARO

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth P]	d1arop_	Multi-domain proteins (alpha and beta)	DNA/RNA polymerases	DNA/RNA polymerases	T7 RNA polymerase	T7 RNA polymerase	(Escherichia phage T7 ) [TaxId: 10760 ],	SCOPe (2.08)
B [auth L]	d1arol_	Alpha and beta proteins (a+b)	N-acetylmuramoyl-L-alanine amidase-like	N-acetylmuramoyl-L-alanine amidase-like	N-acetylmuramoyl-L-alanine amidase-like	Bacteriophage T7 lysozyme (Zn amidase)	(Escherichia phage T7 ) [TaxId: 10760 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth P]	SCOP2B Superfamily	Nucleotide cyclase/DNA polymerase palm domain-like	8037503	3001272	SCOP2B (2022-06-29)
A [auth P]	SCOP2B Superfamily	Nucleotide cyclase/DNA polymerase palm domain-like	8037503	3001272	SCOP2B (2022-06-29)
B [auth L]	SCOP2B Superfamily	N-acetylmuramoyl-L-alanine amidase-like	8036163	3000555	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 [auth P]	RPOL_N_1	e1aroP4	A: alpha arrays	X: HTH	H: HTH	T: HTH in T7 RNA polymerase	F: RPOL_N_1	ECOD (1.6)
A [auth P]	RNA_pol_2nd	e1aroP2	A: alpha arrays	X: helical bundle in Bacillus stearothermophilus-like DNA polymerase I (From Topology)	H: helical bundle in Bacillus stearothermophilus-like DNA polymerase I (From Topology)	T: helical bundle in Bacillus stearothermophilus-like DNA polymerase I	F: RNA_pol_2nd	ECOD (1.6)
A [auth P]	RNA_pol_1st	e1aroP5	A: alpha arrays	X: inserted helical bundle subdomain in T7 RNA polymerase (From Topology)	H: inserted helical bundle subdomain in T7 RNA polymerase (From Topology)	T: inserted helical bundle subdomain in T7 RNA polymerase	F: RNA_pol_1st	ECOD (1.6)
A [auth P]	KOG1038,RPOL_N	e1aroP6	A: alpha bundles	X: fingers domain in bacteriophage RB69-like DNA polymerase I (From Topology)	H: fingers domain in bacteriophage RB69-like DNA polymerase I (From Topology)	T: fingers domain in bacteriophage RB69-like DNA polymerase I	F: KOG1038,RPOL_N	ECOD (1.6)
A [auth P]	RNA_pol_3rd	e1aroP3	A: a+b two layers	X: Alpha-beta plaits	H: Adenylyl and guanylyl cyclase catalytic domain-like	T: Adenylyl and guanylyl cyclase catalytic domain-like	F: RNA_pol_3rd	ECOD (1.6)
B [auth L]	Amidase_2	e1aroL1	A: a+b three layers	X: N-acetylmuramoyl-L-alanine amidase-like (From Topology)	H: N-acetylmuramoyl-L-alanine amidase-like (From Topology)	T: N-acetylmuramoyl-L-alanine amidase-like	F: Amidase_2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth P]	1.10.1320.10	Mainly Alpha	Orthogonal Bundle	T7 RNA polymerase	domain 1	CATH (4.3.0)
A [auth P]	1.10.287.260	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)
A [auth P]	3.30.70.370	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)
A [auth P]	1.10.287.280	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)
A [auth P]	1.10.150.20	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
B [auth L]	3.40.80.10	Alpha Beta	3-Layer(aba) Sandwich	Lysozyme-like	Peptidoglycan recognition protein-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth P]	PF14700	DNA-directed RNA polymerase N-terminal (RPOL_N)	DNA-directed RNA polymerase N-terminal	This is the N-terminal domain of DNA-directed RNA polymerase. This domain has a role in interaction with regions of upstream promoter DNA and the nascent RNA chain, leading to the processivity of the enzyme [1]. In order to make mRNA transcripts the ...	This is the N-terminal domain of DNA-directed RNA polymerase. This domain has a role in interaction with regions of upstream promoter DNA and the nascent RNA chain, leading to the processivity of the enzyme [1]. In order to make mRNA transcripts the RNA polymerase undergoes a transition from the initiation phase (which only makes short fragments of RNA) to an elongation phase. This domain undergoes a structural change in the transition from initiation to elongation phase. The structural change results in abolition of the promoter binding site, creation of a channel accommodating the heteroduplex in the active site and formation of an exit tunnel which the RNA transcript passes through after peeling off the heteroduplex [2].	Domain
A [auth P]	PF00940	DNA-dependent RNA polymerase (RNA_pol)	DNA-dependent RNA polymerase	-	Family
B [auth L]	PF01510	N-acetylmuramoyl-L-alanine amidase (Amidase_2)	N-acetylmuramoyl-L-alanine amidase	This family includes zinc amidases that have N-acetylmuramoyl-L-alanine amidase activity EC:3.5.1.28. This enzyme domain cleaves the amide bond between N-acetylmuramoyl and L-amino acids in bacterial cell walls (preferentially: D-lactyl-L-Ala). The ...	This family includes zinc amidases that have N-acetylmuramoyl-L-alanine amidase activity EC:3.5.1.28. This enzyme domain cleaves the amide bond between N-acetylmuramoyl and L-amino acids in bacterial cell walls (preferentially: D-lactyl-L-Ala). The structure is known for the bacteriophage T7 structure and shows that two of the conserved histidines are zinc binding.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth P]	T7 RNA POLYMERASE	DNA binding binding organic cyclic compound binding nucleic acid binding DNA-directed 5'-3' RNA polymerase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups	viral gene expression DNA-templated viral transcription viral process viral transcription RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process viral gene expression DNA-templated viral transcription viral process viral transcription RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process metabolic process cellular process macromolecule metabolic process	transferase complex, transferring phosphorus-containing groups protein-containing complex catalytic complex RNA polymerase complex DNA-directed RNA polymerase complex transferase complex intracellular protein-containing complex
B [auth L]	T7 LYSOZYME	cation binding transition metal ion binding zinc ion binding ion binding binding metal ion binding small molecule binding peptidoglycan muralytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amides hydrolase activity catalytic activity N-acetylmuramoyl-L-alanine amidase activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds	biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response response to external stimulus response to biotic stimulus defense response to bacterium defense response to other organism response to stress response to bacterium response to external biotic stimulus carbohydrate derivative catabolic process catabolic process peptidoglycan catabolic process biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response response to external stimulus response to biotic stimulus defense response to bacterium defense response to other organism response to stress response to bacterium response to external biotic stimulus carbohydrate derivative catabolic process catabolic process peptidoglycan catabolic process glycosaminoglycan metabolic process carbohydrate derivative metabolic process aminoglycan catabolic process macromolecule catabolic process glycosaminoglycan catabolic process aminoglycan metabolic process peptidoglycan metabolic process metabolic process cellular process macromolecule metabolic process viral gene expression regulation of biological process regulation of viral process negative regulation of viral process regulation of viral transcription negative regulation of viral transcription viral process biological regulation negative regulation of biological process viral transcription symbiont-mediated cytolysis of host cell viral life cycle disruption of cell in another organism cytolysis biological process involved in interaction with host biological process involved in symbiotic interaction viral release from host cell by cytolysis disruption of cellular anatomical structure in another organism exit from host cell cytolysis in another organism viral release from host cell disruption of anatomical structure in another organism symbiont-mediated killing of host cell killing of cells of another organism cell killing disruption of plasma membrane integrity in another organism	host cellular component host intracellular part cellular anatomical structure host cell cytoplasm host cell part host intracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth P]	IPR029262	DNA-directed RNA polymerase, N-terminal	Domain
A [auth P]	IPR002092	DNA-directed RNA polymerase, phage-type	Family
A [auth P]	IPR024075	DNA-directed RNA polymerase, helix hairpin domain superfamily	Homologous Superfamily
A [auth P]	IPR046950	DNA-directed RNA polymerase, C-terminal domain, phage-type	Domain
A [auth P]	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
A [auth P]	IPR037159	DNA-directed RNA polymerase, N-terminal domain superfamily	Homologous Superfamily
B [auth L]	IPR002502	N-acetylmuramoyl-L-alanine amidase domain	Domain
B [auth L]	IPR006619	Peptidoglycan recognition protein family domain, metazoa/bacteria	Domain
B [auth L]	IPR036505	N-acetylmuramoyl-L-alanine amidase/PGRP domain superfamily	Homologous Superfamily
B [auth L]	IPR015510	Peptidoglycan recognition protein	Family
B [auth L]	IPR034689	Endolysin T7 type	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.