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1r6q

ClpNS with fragments

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

ATP-dependent Clp protease ATP-binding subunit clpA

Escherichia coli

UniProt P0ABH9

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 ATP-dependent Clp protease adaptor protein clpS × 1 （P0A8Q6） BIS-(2-HYDROXYETHYL)AMINO-TRIS(HYDROXYMETHYL)METHANE YTTRIUM × 2 GLYCEROL × 1 YTTRIUM ION × 1 water × 2 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 2 ATP-dependent Clp protease adaptor protein clpS × 1 （P0A8Q6） BIS-(2-HYDROXYETHYL)AMINO-TRIS(HYDROXYMETHYL)METHANE YTTRIUM × 2 GLYCEROL × 1 YTTRIUM ION × 1 water × 2 Consistent with protein count
3 Protein heterocomplex Heteromer Protein 4 ATP-dependent Clp protease adaptor protein clpS × 2 （P0A8Q6） BIS-(2-HYDROXYETHYL)AMINO-TRIS(HYDROXYMETHYL)METHANE YTTRIUM × 4 GLYCEROL × 2 YTTRIUM ION × 2 water × 4 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1k6k 1ksf 1r6b 1r6c

4 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1lzw 1lzw 1mbu 1mbu 1mbv 1mbx 1mbx 1mg9 1r6o 1r6o 1r6o 1r6q

22 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name CLPA_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–143； UniProt 1–143 Author chain B； PDBConstruct 1–143； UniProt 1–143

ATP-dependent Clp protease adaptor protein clpS

Escherichia coli

UniProt P0A8Q6

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 ATP-dependent Clp protease ATP-binding subunit clpA × 1 （P0ABH9） BIS-(2-HYDROXYETHYL)AMINO-TRIS(HYDROXYMETHYL)METHANE YTTRIUM × 2 GLYCEROL × 1 YTTRIUM ION × 1 water × 2 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 2 ATP-dependent Clp protease ATP-binding subunit clpA × 1 （P0ABH9） BIS-(2-HYDROXYETHYL)AMINO-TRIS(HYDROXYMETHYL)METHANE YTTRIUM × 2 GLYCEROL × 1 YTTRIUM ION × 1 water × 2 Consistent with protein count
3 Protein heterocomplex Heteromer Protein 4 ATP-dependent Clp protease ATP-binding subunit clpA × 2 （P0ABH9） BIS-(2-HYDROXYETHYL)AMINO-TRIS(HYDROXYMETHYL)METHANE YTTRIUM × 4 GLYCEROL × 2 YTTRIUM ION × 2 water × 4 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer
3o2o 3o2o 3o2o 3o2o 3o2o 3o2o 3o2o 3o2o

8 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1lzw 1lzw 1mbu 1mbu 1mbv 1mbx 1mbx 1mg9 1r6o 1r6o 1r6o 1r6q

27 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name CLPS_ECOLI
Isoform —
PDB entities 2
Chains and sequence ranges Author chain C； PDBConstruct 1–106； UniProt 1–106 Author chain D； PDBConstruct 1–106； UniProt 1–106

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_id1r6q
Deposition date deposition_date2003-10-16
Structure title titleClpNS with fragments
Keywords keywordsClpA, AAA+, N-terminal domain, ClpS, crystal, binding mechanism, CHAPERONE-PROTEIN BINDING COMPLEX; 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.

1r6q__assembly_1__model_1

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

Download this curve (.dat)

1r6q__assembly_1__model_1 | I(q)

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

1r6q__assembly_1__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）20.88 Å
Rg (electron density)19.85 Å
Total Rg20.79 Å
Atom count1923
Residues236
Excluded volume34424 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1r6q__assembly_1__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 1r6q__assembly_2__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
3 1 1r6q__assembly_3__model_1 tetrameric （4） 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)

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd1r6qa_
Class classa — All alpha proteins
Fold Fold folda.174 — Double Clp-N motif
Superfamily Superfamily superfamilya.174.1 — Double Clp-N motif
Family Family familya.174.1.1 — Double Clp-N motif
Domain ID domain_idd1r6qb_
Class classa — All alpha proteins
Fold Fold folda.174 — Double Clp-N motif
Superfamily Superfamily superfamilya.174.1 — Double Clp-N motif
Family Family familya.174.1.1 — Double Clp-N motif
Domain ID domain_idd1r6qc_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.45 — ClpS-like
Superfamily Superfamily superfamilyd.45.1 — ClpS-like
Family Family familyd.45.1.2 — Adaptor protein ClpS (YljA)
Domain ID domain_idd1r6qd_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.45 — ClpS-like
Superfamily Superfamily superfamilyd.45.1 — ClpS-like
Family Family familyd.45.1.2 — Adaptor protein ClpS (YljA)

CATH v4.4 (4 domains)

Domain ID domain_id1r6qA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1780 — Double Clp-N motif
Homologous superfamily homologous superfamily10 — Clp, N-terminal domain
Domain ID domain_id1r6qB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1780 — Double Clp-N motif
Homologous superfamily homologous superfamily10 — Clp, N-terminal domain
Domain ID domain_id1r6qC00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1390 — Ribosomal Protein L30; Chain: A,
Homologous superfamily homologous superfamily10 — Ribosomal protein L7/L12, C-terminal domain/Adaptor protein ClpS
Domain ID domain_id1r6qD00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1390 — Ribosomal Protein L30; Chain: A,
Homologous superfamily homologous superfamily10 — Ribosomal protein L7/L12, C-terminal domain/Adaptor protein ClpS
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7. Citations (1)