SAXSdb — 6asq

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

Endoplasmin

Canis lupus familiaris

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	3,6,9,12,15,18,21-HEPTAOXATRICOSANE-1,23-DIOL × 7 DI(HYDROXYETHYL)ETHER × 2 GLYCEROL × 2 methyl 2-[2-(2-benzylpyridin-3-yl)ethyl]-3-chloro-4,6-dihydroxybenzoate × 1 water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	3,6,9,12,15,18,21-HEPTAOXATRICOSANE-1,23-DIOL × 6 DI(HYDROXYETHYL)ETHER × 1 GLYCEROL × 2 methyl 2-[2-(2-benzylpyridin-3-yl)ethyl]-3-chloro-4,6-dihydroxybenzoate × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ENPL_CANLF
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–219； UniProt 69–286 Author chain A； PDBConstruct 224–233； UniProt 328–337 Author chain B； PDBConstruct 2–219； UniProt 69–286 Author chain B； PDBConstruct 224–233； UniProt 328–337

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	6asq
Deposition date deposition_date	2017-08-25
Structure title title	Structure of Grp94 bound to methyl 2-[2-(2-benzylpyridin-3-yl)ethyl]-3-chloro-4,6-dihydroxybenzoate, a pan-Hsp90 inhibitor
Keywords keywords	Grp94, Hsp90, Inhibitor, CHAPERONE-INHIBITOR complex; CHAPERONE/INHIBITOR
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.

6asq__assembly_1__model_1

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

Download this curve (.dat)

6asq__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

6asq__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	18.64 Å
Rg (electron density)	17.38 Å
Total Rg	18.54 Å
Atom count	1846
Residues	217
Excluded volume	33359 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`6asq__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`6asq__assembly_2__model_1`	monomeric （1）	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 (6)

Entity 1 Entity 1 polymer

Description description	Endoplasmin
Molecular weight formula_weight	26187.6 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	3737

SLREKSEKFAFQAEVNRMMKLIINSLYKNKEIFLRELISNASDALDKIRLISLTDENALAGNEELTVKIKCDKEKNLLHVTDTGVGMTREELVKNLGTIAKSGTSEFLNKMTEAQEDGQSTSELIGQFGVGFYSAFLVADKVIVTSKHNNDTQHIWESDSNEFSVIADPRGNTLGRGTTITLVLKEEASDYLELDTIKNLVKKYSQFINFPIYVWSSKTGGGGKTVWDWELMN

Source Source

Source organism organism	Canis lupus familiaris
Common name common_name	Dog
NCBI taxonomy ID ncbi_taxonomy_id	9615
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	3,6,9,12,15,18,21-HEPTAOXATRICOSANE-1,23-DIOL
Molecular weight formula_weight	370.4 kDa
Source method src_method	syn
Copy count entity_count	13

Entity 3 Entity 3 non-polymer

Description description	DI(HYDROXYETHYL)ETHER
Molecular weight formula_weight	106.1 kDa
Source method src_method	syn
Copy count entity_count	3

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	4

Entity 5 Entity 5 non-polymer

Description description	methyl 2-[2-(2-benzylpyridin-3-yl)ethyl]-3-chloro-4,6-dihydroxybenzoate
Molecular weight formula_weight	397.9 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	78

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d6asqa_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.122 — ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase
Superfamily Superfamily superfamily	d.122.1 — ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase
Family Family family	d.122.1.1 — Heat shock protein 90, HSP90, N-terminal domain

Domain ID domain_id	d6asqb_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.122 — ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase
Superfamily Superfamily superfamily	d.122.1 — ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase
Family Family family	d.122.1.1 — Heat shock protein 90, HSP90, N-terminal domain

CATH v4.4 (2 domains)

Domain ID domain_id	6asqA00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	565 — Heat Shock Protein 90
Homologous superfamily homologous superfamily	10 — Histidine kinase-like ATPase, C-terminal domain

Domain ID domain_id	6asqB00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	565 — Heat Shock Protein 90
Homologous superfamily homologous superfamily	10 — Histidine kinase-like ATPase, C-terminal domain

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Unit-cell length a length_a	65.431 Å
Unit-cell length b length_b	84.717 Å
Unit-cell length c length_c	95.759 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	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.350 Å
Low-resolution limit resolution_low	42.359 Å
R factor r_factor	0.2001
R_work r_work	0.1966
R_free r_free	0.2367

Structure of Grp94 bound to methyl 2-[2-(2-benzylpyridin-3-yl)ethyl]-3-chloro-4,6-dihydroxybenzoate, a pan-Hsp90 inhibitor

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

Endoplasmin

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

6asq__assembly_1__model_1

6asq__assembly_1__model_1 | I(q)

6asq__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 (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Structure of Grp94 bound to methyl 2-[2-(2-benzylpyridin-3-yl)ethyl]-3-chloro-4,6-dihydroxybenzoate, a pan-Hsp90 inhibitor

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

Endoplasmin

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

6asq__assembly_1__model_1

6asq__assembly_1__model_1 | I(q)

6asq__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 (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)