SAXSdb — 4cgu

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

TPR REPEAT-CONTAINING PROTEIN ASSOCIATED WITH HSP90

SACCHAROMYCES CEREVISIAE

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 3	PROTEIN INTERACTING WITH HSP90 1 × 1 （P38768） HEAT SHOCK PROTEIN HSP 90-ALPHA × 1 （P07900） GLYCEROL × 1 water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TAH1_YEAST
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–112； UniProt 1–111

PROTEIN INTERACTING WITH HSP90 1

SACCHAROMYCES CEREVISIAE

UniProt P38768

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 3	TPR REPEAT-CONTAINING PROTEIN ASSOCIATED WITH HSP90 × 1 （P25638） HEAT SHOCK PROTEIN HSP 90-ALPHA × 1 （P07900） GLYCEROL × 1 water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PIH1_YEAST
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–158； UniProt 187–344

HEAT SHOCK PROTEIN HSP 90-ALPHA

OrganismNot specified

UniProt P07900

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 3	TPR REPEAT-CONTAINING PROTEIN ASSOCIATED WITH HSP90 × 1 （P25638） PROTEIN INTERACTING WITH HSP90 1 × 1 （P38768） GLYCEROL × 1 water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	HS90A_HUMAN
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain C； PDBConstruct 1–7； UniProt 726–732

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	4cgu
Deposition date deposition_date	2013-11-26
Structure title title	Full length Tah1 bound to yeast PIH1 and HSP90 peptide SRMEEVD
Keywords keywords	CHAPERONE-PEPTIDE COMPLEX, CHAPERONE, R2TP, TAH1, HSP90, PIH1; CHAPERONE/PEPTIDE
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.

4cgu__assembly_1__model_1

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

Download this curve (.dat)

4cgu__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4cgu__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	21.11 Å
Rg (electron density)	20.33 Å
Total Rg	21.20 Å
Atom count	1607
Residues	196
Excluded volume	28829 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4cgu__assembly_1__model_1`	trimeric （3）	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 (5)

Entity 1 Entity 1 polymer

Description description	TPR REPEAT-CONTAINING PROTEIN ASSOCIATED WITH HSP90
Molecular weight formula_weight	12778.0 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	1719

LMSQFEKQKEQGNSLFKQGLYREAVHCYDQLITAQPQNPVGYSNKAMALIKLGEYTQAIQMCQQGLRYTSTAEHVAIRSKLQYRLELAQGAVGSVQIPVVEVDELPEGYDRS

Source Source

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

Entity 2 Entity 2 polymer

Description description	PROTEIN INTERACTING WITH HSP90 1
Molecular weight formula_weight	18105.2 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

HKIIEEEAGDPMSILRGRNDDGDDNNDPDDGTLPPLFPIENKISGAKIEEIDKNEIAHRNLKQAPAPAPAPHEQQEDVPEYEVKMKRFKGAAYKLRILIENKAPNSKPDRFSPSYNFAENILYINGKLSIPLPRDIVVNAADIKIFHIRKERTLYIYI

Source Source

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

Entity 3 Entity 3 polymer

Description description	HEAT SHOCK PROTEIN HSP 90-ALPHA
Molecular weight formula_weight	865.9 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C

SRMEEVD

Entity 4 Entity 4 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	89

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6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id	4cguB00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	4160 —

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Unit-cell length a length_a	56.010 Å
Unit-cell length b length_b	78.380 Å
Unit-cell length c length_c	98.790 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	C 2 2 21
Space-group number int_tables_number	20
Crystal system crystal_system	—

Resolution resolution	2.110 Å
Low-resolution limit resolution_low	39.190 Å
R factor r_factor	0.1708
R_work r_work	0.1688
R_free r_free	0.2101

Full length Tah1 bound to yeast PIH1 and HSP90 peptide SRMEEVD

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

TPR REPEAT-CONTAINING PROTEIN ASSOCIATED WITH HSP90

State in the Current Structure

Other States of the Same Protein in the Database

PROTEIN INTERACTING WITH HSP90 1

State in the Current Structure

Other States of the Same Protein in the Database

HEAT SHOCK PROTEIN HSP 90-ALPHA

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

4cgu__assembly_1__model_1

4cgu__assembly_1__model_1 | I(q)

4cgu__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

7. Citations (1)

Full length Tah1 bound to yeast PIH1 and HSP90 peptide SRMEEVD

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

TPR REPEAT-CONTAINING PROTEIN ASSOCIATED WITH HSP90

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PROTEIN INTERACTING WITH HSP90 1

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

HEAT SHOCK PROTEIN HSP 90-ALPHA

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

4cgu__assembly_1__model_1

4cgu__assembly_1__model_1 | I(q)

4cgu__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

7. Citations (1)