Annotations: 4IQJ

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
I [auth A]	PF01336	e4iqjA5	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: PF01336	ECOD (1.6)
I [auth A]	PF14579	e4iqjA4	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: PF14579	ECOD (1.6)
I [auth A]	PF17657	e4iqjA3	A: alpha arrays	X: DNA polymerase III finger domain (From Topology)	H: DNA polymerase III finger domain (From Topology)	T: DNA polymerase III finger domain	F: PF17657	ECOD (1.6)
I [auth A]	F_UNCLASSIFIED	e4iqjA6	A: a+b two layers	X: DNA polymerase III C-terminal domain (From Topology)	H: DNA polymerase III C-terminal domain (From Topology)	T: DNA polymerase III C-terminal domain	F: F_UNCLASSIFIED	ECOD (1.6)
I [auth A]	PF07733	e4iqjA1	A: a+b three layers	X: Nucleotidyltransferase-like	H: Nucleotidyltransferase (From Topology)	T: Nucleotidyltransferase	F: PF07733	ECOD (1.6)
I [auth A]	PF02811	e4iqjA2	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: PF02811	ECOD (1.6)
J [auth B]	PF01336	e4iqjB5	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: PF01336	ECOD (1.6)
J [auth B]	PF14579	e4iqjB4	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: PF14579	ECOD (1.6)
J [auth B]	PF17657	e4iqjB3	A: alpha arrays	X: DNA polymerase III finger domain (From Topology)	H: DNA polymerase III finger domain (From Topology)	T: DNA polymerase III finger domain	F: PF17657	ECOD (1.6)
J [auth B]	F_UNCLASSIFIED	e4iqjB6	A: a+b two layers	X: DNA polymerase III C-terminal domain (From Topology)	H: DNA polymerase III C-terminal domain (From Topology)	T: DNA polymerase III C-terminal domain	F: F_UNCLASSIFIED	ECOD (1.6)
J [auth B]	PF07733	e4iqjB1	A: a+b three layers	X: Nucleotidyltransferase-like	H: Nucleotidyltransferase (From Topology)	T: Nucleotidyltransferase	F: PF07733	ECOD (1.6)
J [auth B]	PF02811	e4iqjB2	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: PF02811	ECOD (1.6)
K [auth C]	PF01336	e4iqjC5	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: PF01336	ECOD (1.6)
K [auth C]	PF14579	e4iqjC4	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: PF14579	ECOD (1.6)
K [auth C]	PF17657	e4iqjC3	A: alpha arrays	X: DNA polymerase III finger domain (From Topology)	H: DNA polymerase III finger domain (From Topology)	T: DNA polymerase III finger domain	F: PF17657	ECOD (1.6)
K [auth C]	F_UNCLASSIFIED	e4iqjC6	A: a+b two layers	X: DNA polymerase III C-terminal domain (From Topology)	H: DNA polymerase III C-terminal domain (From Topology)	T: DNA polymerase III C-terminal domain	F: F_UNCLASSIFIED	ECOD (1.6)
K [auth C]	PF07733	e4iqjC1	A: a+b three layers	X: Nucleotidyltransferase-like	H: Nucleotidyltransferase (From Topology)	T: Nucleotidyltransferase	F: PF07733	ECOD (1.6)
K [auth C]	PF02811	e4iqjC2	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: PF02811	ECOD (1.6)
L [auth D]	PF01336	e4iqjD5	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: PF01336	ECOD (1.6)
L [auth D]	PF14579	e4iqjD4	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: PF14579	ECOD (1.6)
L [auth D]	PF17657	e4iqjD3	A: alpha arrays	X: DNA polymerase III finger domain (From Topology)	H: DNA polymerase III finger domain (From Topology)	T: DNA polymerase III finger domain	F: PF17657	ECOD (1.6)
L [auth D]	F_UNCLASSIFIED	e4iqjD6	A: a+b two layers	X: DNA polymerase III C-terminal domain (From Topology)	H: DNA polymerase III C-terminal domain (From Topology)	T: DNA polymerase III C-terminal domain	F: F_UNCLASSIFIED	ECOD (1.6)
L [auth D]	PF07733	e4iqjD1	A: a+b three layers	X: Nucleotidyltransferase-like	H: Nucleotidyltransferase (From Topology)	T: Nucleotidyltransferase	F: PF07733	ECOD (1.6)
L [auth D]	PF02811	e4iqjD2	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: PF02811	ECOD (1.6)
M	PF20964	e4iqjM1	A: alpha complex topology	X: C-terminal domain of the DNA polymerase III subunit tau (From Topology)	H: C-terminal domain of the DNA polymerase III subunit tau (From Topology)	T: C-terminal domain of the DNA polymerase III subunit tau	F: PF20964	ECOD (1.6)
N	PF20964	e4iqjN2	A: alpha complex topology	X: C-terminal domain of the DNA polymerase III subunit tau (From Topology)	H: C-terminal domain of the DNA polymerase III subunit tau (From Topology)	T: C-terminal domain of the DNA polymerase III subunit tau	F: PF20964	ECOD (1.6)
O	PF20964	e4iqjO2	A: alpha complex topology	X: C-terminal domain of the DNA polymerase III subunit tau (From Topology)	H: C-terminal domain of the DNA polymerase III subunit tau (From Topology)	T: C-terminal domain of the DNA polymerase III subunit tau	F: PF20964	ECOD (1.6)
P	PF20964	e4iqjP2	A: alpha complex topology	X: C-terminal domain of the DNA polymerase III subunit tau (From Topology)	H: C-terminal domain of the DNA polymerase III subunit tau (From Topology)	T: C-terminal domain of the DNA polymerase III subunit tau	F: PF20964	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
I [auth A]	3.20.20.140	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Metal-dependent hydrolases	CATH (4.3.0)
I [auth A]	1.10.10.1600	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Bacterial DNA polymerase III alpha subunit, thumb domain	CATH (4.3.0)
J [auth B]	3.20.20.140	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Metal-dependent hydrolases	CATH (4.3.0)
J [auth B]	1.10.10.1600	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Bacterial DNA polymerase III alpha subunit, thumb domain	CATH (4.3.0)
K [auth C]	3.20.20.140	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Metal-dependent hydrolases	CATH (4.3.0)
K [auth C]	1.10.10.1600	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Bacterial DNA polymerase III alpha subunit, thumb domain	CATH (4.3.0)
L [auth D]	3.20.20.140	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Metal-dependent hydrolases	CATH (4.3.0)
L [auth D]	1.10.10.1600	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Bacterial DNA polymerase III alpha subunit, thumb domain	CATH (4.3.0)
M	1.10.40.100	Mainly Alpha	Orthogonal Bundle	Ribonucleotide Reductase Protein R1	domain 1	CATH (4.3.0)
N	1.10.40.100	Mainly Alpha	Orthogonal Bundle	Ribonucleotide Reductase Protein R1	domain 1	CATH (4.3.0)
O	1.10.40.100	Mainly Alpha	Orthogonal Bundle	Ribonucleotide Reductase Protein R1	domain 1	CATH (4.3.0)
P	1.10.40.100	Mainly Alpha	Orthogonal Bundle	Ribonucleotide Reductase Protein R1	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
I [auth A], J [auth B], K [auth C], L [auth D]	PF02811	PHP domain (PHP)	PHP domain	-	Family
I [auth A], J [auth B], K [auth C], L [auth D]	PF07733	Bacterial DNA polymerase III alpha NTPase domain (DNA_pol3_alpha)	Bacterial DNA polymerase III alpha NTPase domain	-	Domain
I [auth A], J [auth B], K [auth C], L [auth D]	PF14579	Helix-hairpin-helix motif (HHH_6)	Helix-hairpin-helix motif	The HHH domain is a short DNA-binding domain [1].	Domain
I [auth A], J [auth B], K [auth C], L [auth D]	PF01336	OB-fold nucleic acid binding domain (tRNA_anti-codon)	OB-fold nucleic acid binding domain	This family contains OB-fold domains that bind to nucleic acids [4]. The family includes the anti-codon binding domain of lysyl, aspartyl, and asparaginyl -tRNA synthetases (See Pfam:PF00152). Aminoacyl-tRNA synthetases catalyse the addition of an a ...	This family contains OB-fold domains that bind to nucleic acids [4]. The family includes the anti-codon binding domain of lysyl, aspartyl, and asparaginyl -tRNA synthetases (See Pfam:PF00152). Aminoacyl-tRNA synthetases catalyse the addition of an amino acid to the appropriate tRNA molecule EC:6.1.1.-. This family also includes part of RecG helicase involved in DNA repair. Replication factor A is a hetero-trimeric complex, that contains a subunit in this family [2,3]. This domain is also found at the C-terminus of bacterial DNA polymerase III alpha chain.	Domain
I [auth A], J [auth B], K [auth C], L [auth D]	PF17657	Bacterial DNA polymerase III alpha subunit finger domain (DNA_pol3_finger)	Bacterial DNA polymerase III alpha subunit finger domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B [auth F], D [auth H], F [auth J], H [auth L]	DNA (5'-D(TPTPTPTPTPTPTPGPTPGPGPCPAPCPTPGPGPCPCPGPTPCPGPTPTPTPCPG)-3')	-	-	-
E [auth I]	DNA (5'-D(PCPGPAPAPAPCPGPAPCPGPGPCPCPAPGPTPGPCPCPAP*(DOC))-3')	-	-	-
A [auth E], C [auth G], G [auth K]	DNA (5'-D(PCPGPAPAPAPCPGPAPCPGPGPCPCPAPGPTPGPCPCPA)-3')	-	-	-
I [auth A], J [auth B], K [auth C], L [auth D]	DNA polymerase III subunit alpha	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 binding organic cyclic compound binding nucleic acid binding nuclease activity hydrolase activity, acting on ester bonds 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 binding organic cyclic compound binding nucleic acid binding nuclease activity hydrolase activity, acting on ester bonds 3'-5' exonuclease activity hydrolase activity exonuclease activity	nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity
M, N, O, P	DNA polymerase III subunit gamma/tau	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 binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding 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 binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound 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 ATP-dependent activity	nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process	transferase complex, transferring phosphorus-containing groups DNA polymerase III complex protein-containing complex catalytic complex transferase complex DNA polymerase complex intracellular protein-containing complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
I [auth A], J [auth B], K [auth C], L [auth D]	IPR040982	DNA polymerase III alpha subunit finger domain	Domain
I [auth A], J [auth B], K [auth C], L [auth D]	IPR004013	PHP domain	Domain
I [auth A], J [auth B], K [auth C], L [auth D]	IPR016195	Polymerase/histidinol phosphatase-like	Homologous Superfamily
I [auth A], J [auth B], K [auth C], L [auth D]	IPR004365	OB-fold nucleic acid binding domain, AA-tRNA synthetase-type	Domain
I [auth A], J [auth B], K [auth C], L [auth D]	IPR041931	Bacterial DNA polymerase III alpha subunit, thumb domain	Homologous Superfamily
I [auth A], J [auth B], K [auth C], L [auth D]	IPR003141	Polymerase/histidinol phosphatase, N-terminal	Domain
I [auth A], J [auth B], K [auth C], L [auth D]	IPR011708	Bacterial DNA polymerase III, alpha subunit, NTPase domain	Domain
I [auth A], J [auth B], K [auth C], L [auth D]	IPR029460	DNA polymerase, helix-hairpin-helix motif	Domain
I [auth A], J [auth B], K [auth C], L [auth D]	IPR004805	Error-prone DNA polymerase/DNA polymerase III subunit alpha DnaE/PolC	Family
M, N, O, P	IPR001270	ClpA/B family	Family
M, N, O, P	IPR003593	AAA+ ATPase domain	Domain
M, N, O, P	IPR022754	DNA polymerase III, gamma subunit, domain III	Domain
M, N, O, P	IPR048448	DNA polymerase III subunit tau-like, C-terminal domain	Domain
M, N, O, P	IPR012763	DNA polymerase III, subunit gamma/ tau, N-terminal	Domain
M, N, O, P	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily

4IQJ

Structure of PolIIIalpha-Tauc-DNA complex suggests an atomic model of the replisome

External Resource: Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage

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4IQJ

Structure of PolIIIalpha-Tauc-DNA complex suggests an atomic model of the replisome

External Resource: Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage