SAXSdb — 1xao

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

Mitochondrial protein import protein MAS5

Saccharomyces cerevisiae

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MAS5_YEAST
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–121； UniProt 258–378 Author chain B； PDBConstruct 1–121； UniProt 258–378

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	1xao
Deposition date deposition_date	2004-08-26
Structure title title	Hsp40-Ydj1 dimerization domain
Keywords keywords	Beta sheets, CHAPERONE; CHAPERONE
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.

1xao__assembly_1__model_1

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

Download this curve (.dat)

1xao__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1xao__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	21.96 Å
Rg (electron density)	20.74 Å
Total Rg	21.67 Å
Atom count	1782
Residues	230
Excluded volume	32241 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1xao__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 (2)

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6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id	1xaoA01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	260 — HSP40/DNAj peptide-binding domain
Homologous superfamily homologous superfamily	20 — Urease metallochaperone UreE, N-terminal domain

Domain ID domain_id	1xaoA02
Class class	6 — Special
Architecture architecture	10 — Helix non-globular
Topology topology	250 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily	310 —

Domain ID domain_id	1xaoB01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	260 — HSP40/DNAj peptide-binding domain
Homologous superfamily homologous superfamily	20 — Urease metallochaperone UreE, N-terminal domain

Domain ID domain_id	1xaoB02
Class class	6 — Special
Architecture architecture	10 — Helix non-globular
Topology topology	250 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily	310 —

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Unit-cell length a length_a	49.631 Å
Unit-cell length b length_b	49.631 Å
Unit-cell length c length_c	210.191 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 61
Space-group number int_tables_number	169
Crystal system crystal_system	—

Resolution resolution	2.070 Å
Low-resolution limit resolution_low	27.160 Å
R factor r_factor	0.2190
R_work r_work	0.2190
R_free r_free	0.2580

Description description	Mitochondrial protein import protein MAS5
Molecular weight formula_weight	13266.3 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	2014

Hsp40-Ydj1 dimerization domain

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

Mitochondrial protein import protein MAS5

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

1xao__assembly_1__model_1

1xao__assembly_1__model_1 | I(q)

1xao__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)

Source organism organism	Saccharomyces cerevisiae
Common name common_name	;baker's yeast ;
NCBI taxonomy ID ncbi_taxonomy_id	4932
Host organism host_organism	Escherichia coli BL21(DE3)

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	232

Hsp40-Ydj1 dimerization domain

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

Mitochondrial protein import protein MAS5

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

1xao__assembly_1__model_1

1xao__assembly_1__model_1 | I(q)

1xao__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)