Annotations: 5IKN

Crystal Structure of the T7 Replisome in the Absence of 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)
J	SCOP2B Superfamily	Toprim domain-like	8018199	3000737	SCOP2B (2022-06-29)
J	SCOP2B Superfamily	RecA-like P-loop NTPases	8018194	3002019	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	Toprim domain-like	8018199	3000737	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	RecA-like P-loop NTPases	8018194	3002019	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	Toprim domain-like	8018199	3000737	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	RecA-like P-loop NTPases	8018194	3002019	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	RecA-like P-loop NTPases	8018194	3002019	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	Toprim domain-like	8018199	3000737	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Toprim domain-like	8018199	3000737	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	RecA-like P-loop NTPases	8018194	3002019	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	RecA-like P-loop NTPases	8018194	3002019	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Toprim domain-like	8018199	3000737	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Toprim domain-like	8018199	3000737	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	RecA-like P-loop NTPases	8018194	3002019	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Nucleotide cyclase/DNA polymerase palm domain-like	8040254	3001272	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Ribonuclease H-like	8040253	3000143	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Nucleotide cyclase/DNA polymerase palm domain-like	8040254	3001272	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Ribonuclease H-like	8040253	3000143	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Nucleotide cyclase/DNA polymerase palm domain-like	8040254	3001272	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Nucleotide cyclase/DNA polymerase palm domain-like	8040254	3001272	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Nucleotide cyclase/DNA polymerase palm domain-like	8040254	3001272	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Ribonuclease H-like	8040253	3000143	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Nucleotide cyclase/DNA polymerase palm domain-like	8040254	3001272	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)
M	Lectin_C	e5iknM1	A: beta barrels	X: Long alpha-hairpin	H: Ribosomal protein L29 (L29p)	T: Ribosomal protein L29 (L29p)	F: Lectin_C	ECOD (v294.2)
L	Lectin_C	e5iknL1	A: beta barrels	X: Long alpha-hairpin	H: Ribosomal protein L29 (L29p)	T: Ribosomal protein L29 (L29p)	F: Lectin_C	ECOD (v294.2)
K	Lectin_C	e5iknK1	A: beta barrels	X: Long alpha-hairpin	H: Ribosomal protein L29 (L29p)	T: Ribosomal protein L29 (L29p)	F: Lectin_C	ECOD (v294.2)
J	Lectin_C	e5iknJ1	A: beta barrels	X: Long alpha-hairpin	H: Ribosomal protein L29 (L29p)	T: Ribosomal protein L29 (L29p)	F: Lectin_C	ECOD (v294.2)
I	Lectin_C	e5iknI1	A: beta barrels	X: Long alpha-hairpin	H: Ribosomal protein L29 (L29p)	T: Ribosomal protein L29 (L29p)	F: Lectin_C	ECOD (v294.2)
H	Lectin_C	e5iknH1	A: beta barrels	X: Long alpha-hairpin	H: Ribosomal protein L29 (L29p)	T: Ribosomal protein L29 (L29p)	F: Lectin_C	ECOD (v294.2)
G	Lectin_C	e5iknG1	A: beta barrels	X: Long alpha-hairpin	H: Ribosomal protein L29 (L29p)	T: Ribosomal protein L29 (L29p)	F: Lectin_C	ECOD (v294.2)
F	Lectin_C	e5iknF1	A: beta barrels	X: Long alpha-hairpin	H: Ribosomal protein L29 (L29p)	T: Ribosomal protein L29 (L29p)	F: Lectin_C	ECOD (v294.2)
E	Lectin_C	e5iknE1	A: beta barrels	X: Long alpha-hairpin	H: Ribosomal protein L29 (L29p)	T: Ribosomal protein L29 (L29p)	F: Lectin_C	ECOD (v294.2)
D	Lectin_C	e5iknD1	A: beta barrels	X: Long alpha-hairpin	H: Ribosomal protein L29 (L29p)	T: Ribosomal protein L29 (L29p)	F: Lectin_C	ECOD (v294.2)
C	Lectin_C	e5iknC1	A: beta barrels	X: Long alpha-hairpin	H: Ribosomal protein L29 (L29p)	T: Ribosomal protein L29 (L29p)	F: Lectin_C	ECOD (v294.2)
B	Lectin_C	e5iknB1	A: beta barrels	X: Long alpha-hairpin	H: Ribosomal protein L29 (L29p)	T: Ribosomal protein L29 (L29p)	F: Lectin_C	ECOD (v294.2)
A	Lectin_C	e5iknA1	A: beta barrels	X: Long alpha-hairpin	H: Ribosomal protein L29 (L29p)	T: Ribosomal protein L29 (L29p)	F: Lectin_C	ECOD (v294.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
K, L, M	PF00085	Thioredoxin (Thioredoxin)	Thioredoxin	Thioredoxins are small enzymes that participate in redox reactions, via the reversible oxidation of an active centre disulfide bond. Some members with only the active site are not separated from the noise.	Domain
D, E, F, G, H D, E, F, G, H, I, J	PF21268	Bacteriophage T7 DNA helicase/primase, N-terminal a+b fold (Helic-prim_T7_N)	Bacteriophage T7 DNA helicase/primase, N-terminal a+b fold	Bacteriophage T7 DNA helicase/primase (also known as Gp4) is an ATP-dependent DNA helicase and primase that is essential for viral DNA replication and recombination [1-4]. Primase activity synthesises short RNA primers at the sequence 5'-GTC-3' on th ...	Bacteriophage T7 DNA helicase/primase (also known as Gp4) is an ATP-dependent DNA helicase and primase that is essential for viral DNA replication and recombination [1-4]. Primase activity synthesises short RNA primers at the sequence 5'-GTC-3' on the lagging strand that the polymerase elongates using dNTPs and providing the primase is still present. It consists of an N-terminal zinc ribbon (Pfam:PF08273) followed by a RNA Polymerase Domain that can be subdivided in an N-terminal alpha+beta structure, represented in this entry and a C-terminal TOPRIM fold (Pfam:PF13155) [1]. At the C-terminal end of the protein there is a DNA helicase domain (Pfam:PF03796).	Domain
D, E, F, G, H D, E, F, G, H, I, J	PF03796	DnaB-like helicase C terminal domain (DnaB_C)	DnaB-like helicase C terminal domain	The hexameric helicase DnaB unwinds the DNA duplex at the Escherichia coli chromosome replication fork. Although the mechanism by which DnaB both couples ATP hydrolysis to translocation along DNA and denatures the duplex is unknown, a change in the q ...	The hexameric helicase DnaB unwinds the DNA duplex at the Escherichia coli chromosome replication fork. Although the mechanism by which DnaB both couples ATP hydrolysis to translocation along DNA and denatures the duplex is unknown, a change in the quaternary structure of the protein involving dimerisation of the N-terminal domain has been observed and may occur during the enzymatic cycle. This C-terminal domain contains an ATP-binding site and is therefore probably the site of ATP hydrolysis.	Domain
D, E, F, G, H D, E, F, G, H, I, J	PF01751	Toprim domain (Toprim)	Toprim domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
K, L, M	Thioredoxin-1	oxidoreductase activity, acting on a sulfur group of donors disulfide oxidoreductase activity oxidoreductase activity catalytic activity, acting on a protein protein-disulfide reductase activity catalytic activity	cell redox homeostasis cellular homeostasis homeostatic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol
D, E, F, G, H D, E, F, G, H, I, J	DNA primase/helicase	nucleic acid conformation isomerase activity isomerase activity DNA helicase activity catalytic activity, acting on a nucleic acid helicase activity ATP-dependent activity ATP-dependent activity, acting on DNA catalytic activity, acting on DNA 5'-3' DNA helicase activity catalytic activity macromolecular conformation isomerase activity binding adenyl ribonucleotide binding nucleotide binding nucleic acid conformation isomerase activity isomerase activity DNA helicase activity catalytic activity, acting on a nucleic acid helicase activity ATP-dependent activity ATP-dependent activity, acting on DNA catalytic activity, acting on DNA 5'-3' DNA helicase activity catalytic activity macromolecular conformation isomerase activity 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 DNA-directed RNA polymerase activity 5'-3' RNA polymerase activity catalytic activity, acting on RNA RNA polymerase activity transferase activity nucleotidyltransferase activity transferase activity, transferring phosphorus-containing groups 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 cation binding transition metal ion binding zinc ion binding metal ion binding identical protein binding protein binding DNA binding single-stranded DNA binding nucleic acid binding	viral DNA genome replication primary metabolic process viral life cycle DNA metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process biosynthetic process viral genome replication viral process metabolic process cellular process viral DNA genome replication primary metabolic process viral life cycle DNA metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process biosynthetic process viral genome replication viral process metabolic process cellular process macromolecule metabolic process DNA biosynthetic process DNA-templated DNA replication DNA replication, synthesis of primer RNA metabolic process RNA biosynthetic process DNA replication	-
A, B, C	DNA-directed DNA polymerase	catalytic activity, acting on DNA DNA-directed DNA polymerase activity DNA polymerase activity catalytic activity, acting on a nucleic acid transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups DNA binding binding nucleic acid binding hydrolase activity, acting on ester bonds nuclease activity 3'-5' exonuclease activity catalytic activity, acting on DNA DNA-directed DNA polymerase activity DNA polymerase activity catalytic activity, acting on a nucleic acid transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups DNA binding binding nucleic acid binding hydrolase activity, acting on ester bonds nuclease activity 3'-5' exonuclease activity hydrolase activity exonuclease activity nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding DNA exonuclease activity DNA nuclease activity cation binding ion binding metal ion binding	viral DNA genome replication primary metabolic process viral life cycle DNA metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process biosynthetic process viral genome replication viral process metabolic process cellular process viral DNA genome replication primary metabolic process viral life cycle DNA metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process biosynthetic process viral genome replication viral process metabolic process cellular process macromolecule metabolic process DNA biosynthetic process DNA synthesis involved in DNA replication DNA replication DNA-templated DNA replication cellular response to stimulus double-strand break repair response to stimulus cellular response to stress DNA damage response response to stress DNA repair	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
K, L, M	IPR017937	Thioredoxin, conserved site	Conserved Site
K, L, M	IPR013766	Thioredoxin domain	Domain
K, L, M	IPR005746	Thioredoxin	Family
K, L, M	IPR036249	Thioredoxin-like superfamily	Homologous Superfamily
D, E, F, G, H D, E, F, G, H, I, J	IPR048774	Bacteriophage T7 DNA helicase/primase, N-terminal	Domain
D, E, F, G, H D, E, F, G, H, I, J	IPR007694	DNA helicase, DnaB-like, C-terminal	Domain
D, E, F, G, H D, E, F, G, H, I, J	IPR006171	TOPRIM domain	Domain
D, E, F, G, H D, E, F, G, H, I, J	IPR034154	Archaeal primase DnaG/twinkle-like, TOPRIM domain	Domain
D, E, F, G, H D, E, F, G, H, I, J	IPR046394	Bacteriophage T7 DNA helicase/primase	Family
D, E, F, G, H D, E, F, G, H, I, J	IPR027032	Twinkle-like protein	Family
D, E, F, G, H D, E, F, G, H, I, J	IPR013237	DNA primase/helicase Gp4, N-terminal, Bacteriophage T7-like	Domain
D, E, F, G, H D, E, F, G, H, I, J	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A, B, C	IPR036397	Ribonuclease H superfamily	Homologous Superfamily
A, B, C	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
A, B, C	IPR001098	DNA-directed DNA polymerase, family A, palm domain	Domain
A, B, C	IPR034699	DNA-directed DNA polymerase T7	Family
A, B, C	IPR002298	DNA polymerase A	Family
A, B, C	IPR019760	DNA-directed DNA polymerase, family A, conserved site	Conserved Site
A, B, C	IPR012337	Ribonuclease H-like superfamily	Homologous Superfamily