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2xcm

COMPLEX OF HSP90 N-TERMINAL, SGT1 CS AND RAR1 CHORD2 DOMAIN

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

CYTOSOLIC HEAT SHOCK PROTEIN 90

HORDEUM VULGARE

UniProt Q7XJ80

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 SGT1-LIKE PROTEIN × 1 （Q84LL4） RAR1 × 1 （Q9FLI9） ADENOSINE-5'-DIPHOSPHATE × 1 MAGNESIUM ION × 1 ZINC ION × 2 water × 3 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 3 SGT1-LIKE PROTEIN × 1 （Q84LL4） RAR1 × 1 （Q9FLI9） ADENOSINE-5'-DIPHOSPHATE × 1 MAGNESIUM ION × 1 ZINC ION × 2 water × 3 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
2jki 2jki 2jki 2xcm 2xcm

5 assemblies

View Construct and Data Evidence
UniProt name Q7XJ80_HORVU
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 5–213； UniProt 2–210 Author chain B； PDBConstruct 5–213； UniProt 2–210

SGT1-LIKE PROTEIN

ARABIDOPSIS THALIANA

UniProt Q84LL4

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 CYTOSOLIC HEAT SHOCK PROTEIN 90 × 1 （Q7XJ80） RAR1 × 1 （Q9FLI9） ADENOSINE-5'-DIPHOSPHATE × 1 MAGNESIUM ION × 1 ZINC ION × 2 water × 3 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 3 CYTOSOLIC HEAT SHOCK PROTEIN 90 × 1 （Q7XJ80） RAR1 × 1 （Q9FLI9） ADENOSINE-5'-DIPHOSPHATE × 1 MAGNESIUM ION × 1 ZINC ION × 2 water × 3 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
2jki 2jki 2jki 2xcm 2xcm

5 assemblies

View Construct and Data Evidence
UniProt name Q84LL4_ARATH
Isoform —
PDB entities 2
Chains and sequence ranges Author chain C； PDBConstruct 1–92； UniProt 73–164 Author chain D； PDBConstruct 1–92； UniProt 73–164

RAR1

ARABIDOPSIS THALIANA

UniProt Q9FLI9

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 CYTOSOLIC HEAT SHOCK PROTEIN 90 × 1 （Q7XJ80） SGT1-LIKE PROTEIN × 1 （Q84LL4） ADENOSINE-5'-DIPHOSPHATE × 1 MAGNESIUM ION × 1 ZINC ION × 2 water × 3 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 3 CYTOSOLIC HEAT SHOCK PROTEIN 90 × 1 （Q7XJ80） SGT1-LIKE PROTEIN × 1 （Q84LL4） ADENOSINE-5'-DIPHOSPHATE × 1 MAGNESIUM ION × 1 ZINC ION × 2 water × 3 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
2xcm 2xcm

2 assemblies

View Construct and Data Evidence
UniProt name Q9FLI9_ARATH
Isoform —
PDB entities 3
Chains and sequence ranges Author chain E； PDBConstruct 2–74； UniProt 149–221 Author chain F； PDBConstruct 2–74； UniProt 149–221

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_id2xcm
Deposition date deposition_date2010-04-23
Structure title titleCOMPLEX OF HSP90 N-TERMINAL, SGT1 CS AND RAR1 CHORD2 DOMAIN
Keywords keywordsCHAPERONE-PROTEIN BINDING COMPLEX, STRESS RESPONSE; CHAPERONE/PROTEIN BINDING
Experimental Method methodX-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.

2xcm__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

2xcm__assembly_2__model_1 | I(q)

10-2 10-1 105 106 107 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

2xcm__assembly_2__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）29.01 Å
Rg (electron density)29.39 Å
Total Rg29.85 Å
Atom count3026
Residues379
Excluded volume53739 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 2xcm__assembly_1__model_1 trimeric （3） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 2xcm__assembly_2__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 (7)

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6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (6 domains)

Domain ID domain_idd2xcma1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.122 — ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase
Superfamily Superfamily superfamilyd.122.1 — ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase
Family Family familyd.122.1.1 — Heat shock protein 90, HSP90, N-terminal domain
Domain ID domain_idd2xcma2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd2xcmb1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.122 — ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase
Superfamily Superfamily superfamilyd.122.1 — ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase
Family Family familyd.122.1.1 — Heat shock protein 90, HSP90, N-terminal domain
Domain ID domain_idd2xcmb2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd2xcmc_
Class classb — All beta proteins
Fold Fold foldb.15 — HSP20-like chaperones
Superfamily Superfamily superfamilyb.15.1 — HSP20-like chaperones
Family Family familyb.15.1.0 — automated matches
Domain ID domain_idd2xcmd_
Class classb — All beta proteins
Fold Fold foldb.15 — HSP20-like chaperones
Superfamily Superfamily superfamilyb.15.1 — HSP20-like chaperones
Family Family familyb.15.1.0 — automated matches

CATH v4.4 (4 domains)

Domain ID domain_id2xcmA00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology565 — Heat Shock Protein 90
Homologous superfamily homologous superfamily10 — Histidine kinase-like ATPase, C-terminal domain
Domain ID domain_id2xcmB00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology565 — Heat Shock Protein 90
Homologous superfamily homologous superfamily10 — Histidine kinase-like ATPase, C-terminal domain
Domain ID domain_id2xcmC00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily790 —
Domain ID domain_id2xcmD00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily790 —
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7. Citations (1)