Annotations: 1EWQ

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
C [auth A]	d1ewqa1	All alpha proteins	DNA repair protein MutS, domain III	DNA repair protein MutS, domain III	DNA repair protein MutS, domain III	DNA repair protein MutS, domain III	(Thermus aquaticus ) [TaxId: 271 ],	SCOPe (2.08)
C [auth A]	d1ewqa2	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	ABC transporter ATPase domain-like	DNA repair protein MutS, the C-terminal domain	(Thermus aquaticus ) [TaxId: 271 ],	SCOPe (2.08)
C [auth A]	d1ewqa3	Alpha and beta proteins (a/b)	Ribonuclease H-like motif	DNA repair protein MutS, domain II	DNA repair protein MutS, domain II	DNA repair protein MutS, domain II	(Thermus aquaticus ) [TaxId: 271 ],	SCOPe (2.08)
C [auth A]	d1ewqa4	Alpha and beta proteins (a+b)	MutS N-terminal domain-like	DNA repair protein MutS, domain I	DNA repair protein MutS, domain I	DNA repair protein MutS, domain I	(Thermus aquaticus ) [TaxId: 271 ],	SCOPe (2.08)
D [auth B]	d1ewqb1	All alpha proteins	DNA repair protein MutS, domain III	DNA repair protein MutS, domain III	DNA repair protein MutS, domain III	DNA repair protein MutS, domain III	(Thermus aquaticus ) [TaxId: 271 ],	SCOPe (2.08)
D [auth B]	d1ewqb2	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	ABC transporter ATPase domain-like	DNA repair protein MutS, the C-terminal domain	(Thermus aquaticus ) [TaxId: 271 ],	SCOPe (2.08)
D [auth B]	d1ewqb3	Alpha and beta proteins (a/b)	Ribonuclease H-like motif	DNA repair protein MutS, domain II	DNA repair protein MutS, domain II	DNA repair protein MutS, domain II	(Thermus aquaticus ) [TaxId: 271 ],	SCOPe (2.08)
D [auth B]	d1ewqb4	Alpha and beta proteins (a+b)	MutS N-terminal domain-like	DNA repair protein MutS, domain I	DNA repair protein MutS, domain I	DNA repair protein MutS, domain I	(Thermus aquaticus ) [TaxId: 271 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C [auth A]	SCOP2 Family	MutS-like	8018571	4004015	SCOP2 (2022-06-29)
C [auth A]	SCOP2 Superfamily	MutS domain III-like	8056690	3001131	SCOP2 (2022-06-29)
C [auth A]	SCOP2 Superfamily	ABC transporter-like P-loop ATPases	8018572	3002020	SCOP2 (2022-06-29)
C [auth A]	SCOP2 Superfamily	MutS N-terminal domain-like	8056688	3001688	SCOP2 (2022-06-29)
C [auth A]	SCOP2 Superfamily	MutS domain II-like	8056689	3000587	SCOP2 (2022-06-29)
D [auth B]	SCOP2B Superfamily	ABC transporter-like P-loop ATPases	8018572	3002020	SCOP2B (2022-06-29)
D [auth B]	SCOP2B Superfamily	MutS domain II-like	8056689	3000587	SCOP2B (2022-06-29)
D [auth B]	SCOP2B Superfamily	MutS domain III-like	8056690	3001131	SCOP2B (2022-06-29)
D [auth B]	SCOP2B Superfamily	MutS N-terminal domain-like	8056688	3001688	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)
C [auth A]	MutS_III	e1ewqA1	A: alpha bundles	X: Four-helical up-and-down bundle	H: DNA repair protein MutS, domain III (From Topology)	T: DNA repair protein MutS, domain III	F: MutS_III	ECOD (1.6)
C [auth A]	MutS_I	e1ewqA2	A: a+b two layers	X: Homing endonucleases-like	H: DNA repair protein MutS, domain I (From Topology)	T: DNA repair protein MutS, domain I	F: MutS_I	ECOD (1.6)
C [auth A]	MutS_V	e1ewqA3	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: MutS_V	ECOD (1.6)
C [auth A]	MutS_II	e1ewqA4	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: MutS_II	ECOD (1.6)
D [auth B]	MutS_III	e1ewqB1	A: alpha bundles	X: Four-helical up-and-down bundle	H: DNA repair protein MutS, domain III (From Topology)	T: DNA repair protein MutS, domain III	F: MutS_III	ECOD (1.6)
D [auth B]	MutS_I	e1ewqB2	A: a+b two layers	X: Homing endonucleases-like	H: DNA repair protein MutS, domain I (From Topology)	T: DNA repair protein MutS, domain I	F: MutS_I	ECOD (1.6)
D [auth B]	MutS_V	e1ewqB3	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: MutS_V	ECOD (1.6)
D [auth B]	MutS_II	e1ewqB4	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: MutS_II	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C [auth A]	3.40.1170.10	Alpha Beta	3-Layer(aba) Sandwich	MutS, DNA mismatch repair protein, domain I	DNA repair protein MutS, domain I	CATH (4.3.0)
C [auth A]	3.30.420.110	Alpha Beta	2-Layer Sandwich	Nucleotidyltransferase	domain 5	CATH (4.3.0)
C [auth A]	1.10.1420.10	Mainly Alpha	Orthogonal Bundle	MutS, DNA mismatch repair protein	Chain A, domain 3	CATH (4.3.0)
C [auth A]	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
D [auth B]	3.40.1170.10	Alpha Beta	3-Layer(aba) Sandwich	MutS, DNA mismatch repair protein, domain I	DNA repair protein MutS, domain I	CATH (4.3.0)
D [auth B]	3.30.420.110	Alpha Beta	2-Layer Sandwich	Nucleotidyltransferase	domain 5	CATH (4.3.0)
D [auth B]	1.10.1420.10	Mainly Alpha	Orthogonal Bundle	MutS, DNA mismatch repair protein	Chain A, domain 3	CATH (4.3.0)
D [auth B]	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C [auth A], D [auth B]	PF01624	MutS domain I (MutS_I)	MutS domain I	This domain is found in proteins of the MutS family (DNA mismatch repair proteins) and is found associated with Pfam:PF00488, Pfam:PF05188, Pfam:PF05192 and Pfam:PF05190. The MutS family of proteins is named after the Salmonella typhimurium MutS prot ...	This domain is found in proteins of the MutS family (DNA mismatch repair proteins) and is found associated with Pfam:PF00488, Pfam:PF05188, Pfam:PF05192 and Pfam:PF05190. The MutS family of proteins is named after the Salmonella typhimurium MutS protein involved in mismatch repair; other members of the family included the eukaryotic MSH 1,2,3, 4,5 and 6 proteins. These have various roles in DNA repair and recombination. Human MSH has been implicated in non-polyposis colorectal carcinoma (HNPCC) and is a mismatch binding protein [2]. The aligned region corresponds with globular domain I, which is involved in DNA binding, in Thermus aquaticus MutS as characterised in [4].	Domain
C [auth A], D [auth B]	PF05188	MutS domain II (MutS_II)	MutS domain II	This domain is found in proteins of the MutS family (DNA mismatch repair proteins) and is found associated with Pfam:PF00488, Pfam:PF01624, Pfam:PF05192 and Pfam:PF05190. The MutS family of proteins is named after the Salmonella typhimurium MutS prot ...	This domain is found in proteins of the MutS family (DNA mismatch repair proteins) and is found associated with Pfam:PF00488, Pfam:PF01624, Pfam:PF05192 and Pfam:PF05190. The MutS family of proteins is named after the Salmonella typhimurium MutS protein involved in mismatch repair; other members of the family included the eukaryotic MSH 1,2,3, 4,5 and 6 proteins. These have various roles in DNA repair and recombination. Human MSH has been implicated in non-polyposis colorectal carcinoma (HNPCC) and is a mismatch binding protein [2]. This domain corresponds to domain II in Thermus aquaticus MutS as characterised in [4], and has similarity resembles RNAse-H-like domains (see Pfam:PF00075).	Domain
C [auth A], D [auth B]	PF05192	MutS domain III (MutS_III)	MutS domain III	This domain is found in proteins of the MutS family (DNA mismatch repair proteins) and is found associated with Pfam:PF00488, Pfam:PF05188, Pfam:PF01624 and Pfam:PF05190. The MutS family of proteins is named after the Salmonella typhimurium MutS prot ...	This domain is found in proteins of the MutS family (DNA mismatch repair proteins) and is found associated with Pfam:PF00488, Pfam:PF05188, Pfam:PF01624 and Pfam:PF05190. The MutS family of proteins is named after the Salmonella typhimurium MutS protein involved in mismatch repair; other members of the family included the eukaryotic MSH 1,2,3, 4,5 and 6 proteins. These have various roles in DNA repair and recombination. Human MSH has been implicated in non-polyposis colorectal carcinoma (HNPCC) and is a mismatch binding protein [2]. The aligned region corresponds with domain III, which is central to the structure of Thermus aquaticus MutS as characterised in [4].	Domain
C [auth A], D [auth B]	PF00488	MutS domain V (MutS_V)	MutS domain V	This domain is found in proteins of the MutS family (DNA mismatch repair proteins) and is found associated with Pfam:PF01624, Pfam:PF05188, Pfam:PF05192 and Pfam:PF05190. The mutS family of proteins is named after the Salmonella typhimurium MutS prot ...	This domain is found in proteins of the MutS family (DNA mismatch repair proteins) and is found associated with Pfam:PF01624, Pfam:PF05188, Pfam:PF05192 and Pfam:PF05190. The mutS family of proteins is named after the Salmonella typhimurium MutS protein involved in mismatch repair; other members of the family included the eukaryotic MSH 1,2,3, 4,5 and 6 proteins. These have various roles in DNA repair and recombination. Human MSH has been implicated in non-polyposis colorectal carcinoma (HNPCC) and is a mismatch binding protein [2]. The aligned region corresponds with domain V of Thermus aquaticus MutS as characterised in [4], which contains a Walker A motif, and is structurally similar to the ATPase domain of ABC transporters.	Domain
C [auth A], D [auth B]	PF05190	MutS family domain IV (MutS_IV)	MutS family domain IV	This domain is found in proteins of the MutS family (DNA mismatch repair proteins) and is found associated with Pfam:PF01624, Pfam:PF05188, Pfam:PF05192 and Pfam:PF00488. The mutS family of proteins is named after the Salmonella typhimurium MutS prot ...	This domain is found in proteins of the MutS family (DNA mismatch repair proteins) and is found associated with Pfam:PF01624, Pfam:PF05188, Pfam:PF05192 and Pfam:PF00488. The mutS family of proteins is named after the Salmonella typhimurium MutS protein involved in mismatch repair; other members of the family included the eukaryotic MSH 1,2,3, 4,5 and 6 proteins. These have various roles in DNA repair and recombination. Human MSH has been implicated in non-polyposis colorectal carcinoma (HNPCC) and is a mismatch binding protein [2]. The aligned region corresponds in part with globular domain IV, which is involved in DNA binding, in Thermus aquaticus MutS as characterised in [4].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth C]	DNA (5'-D(GPCPGPAPCPGPCPTPAPGPCPGPTPGPCPGPGPCPTPCPGPTP*C)-3')	-	-	-
B [auth D]	DNA (5'-D(GPGPAPCPGPAPGPCPCPGPCPCPGPCPTPAPGPCPGPTPCPG)-3')	-	-	-
C [auth A], D [auth B]	DNA MISMATCH REPAIR PROTEIN MUTS	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 DNA binding double-stranded DNA binding mismatched DNA binding nucleic acid binding damaged DNA binding ATP-dependent activity, acting on DNA DNA damage sensor activity molecular sensor activity catalytic activity, acting on DNA ATP-dependent DNA damage sensor activity catalytic activity, acting on a nucleic acid molecular function regulator activity catalytic activity ATP-dependent activity	cellular response to stimulus mismatch 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	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth A], D [auth B]	IPR045076	DNA mismatch repair MutS	Family
C [auth A], D [auth B]	IPR000432	DNA mismatch repair protein MutS, C-terminal	Domain
C [auth A], D [auth B]	IPR007696	DNA mismatch repair protein MutS, core	Domain
C [auth A], D [auth B]	IPR007860	DNA mismatch repair protein MutS, connector domain	Domain
C [auth A], D [auth B]	IPR005748	DNA mismatch repair protein MutS	Family
C [auth A], D [auth B]	IPR007861	DNA mismatch repair protein MutS, clamp	Domain
C [auth A], D [auth B]	IPR017261	DNA mismatch repair protein MutS/MSH	Family
C [auth A], D [auth B]	IPR007695	DNA mismatch repair protein MutS-like, N-terminal	Domain
C [auth A], D [auth B]	IPR016151	DNA mismatch repair protein MutS, N-terminal	Homologous Superfamily
C [auth A], D [auth B]	IPR036187	DNA mismatch repair protein MutS, core domain superfamily	Homologous Superfamily
C [auth A], D [auth B]	IPR036678	MutS, connector domain superfamily	Homologous Superfamily
C [auth A], D [auth B]	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.