1ewr

CRYSTAL STRUCTURE OF TAQ MUTS

Method: X-RAY DIFFRACTION

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1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA MISMATCH REPAIR PROTEIN MUTS

Thermus aquaticus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MUTS_THEAQ
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–649； UniProt 117–765 Author chain B； PDBConstruct 1–649； UniProt 117–765

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	1ewr
Deposition date deposition_date	2000-04-26
Structure title title	CRYSTAL STRUCTURE OF TAQ MUTS
Keywords keywords	DNA repair, DNA-binding, ATP-binding, HYDROLASE; HYDROLASE
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

1ewr__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1ewr__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1ewr__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	33.63 Å
Rg (electron density)	32.72 Å
Total Rg	33.27 Å
Atom count	7593
Residues	962
Excluded volume	135820 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1ewr__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (1)

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6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

Domain ID domain_id	d1ewra1
Class class	a — All alpha proteins
Fold Fold fold	a.113 — DNA repair protein MutS, domain III
Superfamily Superfamily superfamily	a.113.1 — DNA repair protein MutS, domain III
Family Family family	a.113.1.1 — DNA repair protein MutS, domain III

Domain ID domain_id	d1ewra2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.12 — ABC transporter ATPase domain-like

Domain ID domain_id	d1ewra3
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.55 — Ribonuclease H-like motif
Superfamily Superfamily superfamily	c.55.6 — DNA repair protein MutS, domain II
Family Family family	c.55.6.1 — DNA repair protein MutS, domain II

Domain ID domain_id	d1ewrb1
Class class	a — All alpha proteins
Fold Fold fold	a.113 — DNA repair protein MutS, domain III
Superfamily Superfamily superfamily	a.113.1 — DNA repair protein MutS, domain III
Family Family family	a.113.1.1 — DNA repair protein MutS, domain III

Domain ID domain_id	d1ewrb2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.12 — ABC transporter ATPase domain-like

Domain ID domain_id	d1ewrb3
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.55 — Ribonuclease H-like motif
Superfamily Superfamily superfamily	c.55.6 — DNA repair protein MutS, domain II
Family Family family	c.55.6.1 — DNA repair protein MutS, domain II

CATH v4.4 (6 domains)

Domain ID domain_id	1ewrA01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	110 — MutS, connector domain

Domain ID domain_id	1ewrA02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1420 — MutS, DNA mismatch repair protein; Chain A, domain 3
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1ewrA03
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1ewrB01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	110 — MutS, connector domain

Domain ID domain_id	1ewrB02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1420 — MutS, DNA mismatch repair protein; Chain A, domain 3
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1ewrB03
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

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Unit-cell length a length_a	96.734 Å
Unit-cell length b length_b	96.734 Å
Unit-cell length c length_c	427.126 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	12

Space group space_group	P 31 2 1
Space-group number int_tables_number	152
Crystal system crystal_system	—

Resolution resolution	3.190 Å
Low-resolution limit resolution_low	19.940 Å
R factor r_factor	0.3310
R_work r_work	0.3310
R_free r_free	0.3610

Description description	DNA MISMATCH REPAIR PROTEIN MUTS
Molecular weight formula_weight	73048.6 kDa
Source method src_method	man
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	7593

CRYSTAL STRUCTURE OF TAQ MUTS

1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA MISMATCH REPAIR PROTEIN MUTS

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

1ewr__assembly_1__model_1

1ewr__assembly_1__model_1 | I(q)

1ewr__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

CATH v4.4 (6 domains)

7. Citations (1)

Source organism organism	Thermus aquaticus
NCBI taxonomy ID ncbi_taxonomy_id	271
Host organism host_organism	Escherichia coli

CRYSTAL STRUCTURE OF TAQ MUTS

1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA MISMATCH REPAIR PROTEIN MUTS

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

1ewr__assembly_1__model_1

1ewr__assembly_1__model_1 | I(q)

1ewr__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

CATH v4.4 (6 domains)

7. Citations (1)