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3ejy

Structure of E203H mutant of E.coli Cl-/H+ antiporter, CLC-ec1

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

H(+)/Cl(-) exchange transporter clcA

Escherichia coli

UniProt P37019

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 6 Fab fragment, Heavy chain × 2 Fab fragment, Light chain × 2 BROMIDE ION × 4 Consistent with protein count
2 Protein homooligomer Homooligomer Protein 2 BROMIDE ION × 4 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
3nmo

1 assemblies

Homodimer
1kpk 1kpk 1kpk 3det 3ejy 3ejz 4kjp 4kjq 4kjw 4kk5 4kk6 4kk8

25 assemblies; showing the first 12

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1ots 1ott 1otu 2exw 2exy 2ez0 2fec 2fed 2fee 2h2p 2h2s 2hlf

35 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name CLCA_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–473； UniProt 1–473 Author chain B； PDBConstruct 1–473； UniProt 1–473

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_id3ejy
Deposition date deposition_date2008-09-18
Structure title titleStructure of E203H mutant of E.coli Cl-/H+ antiporter, CLC-ec1
Keywords keywords;membrane protein, Cl-/H+ exchanger, Antiport, Cell inner membrane, Cell membrane, Chloride, Ion transport, Stress response, Transmembrane, Transport, IMMUNE SYSTEM-PROTON TRANSPORT COMPLEX ;; IMMUNE SYSTEM/PROTON TRANSPORT
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.

3ejy__assembly_4__model_1

Assembly 4 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

3ejy__assembly_4__model_1 | I(q)

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

3ejy__assembly_4__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）24.95 Å
Rg (electron density)23.98 Å
Total Rg24.83 Å
Atom count3293
Residues432
Excluded volume58418 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3ejy__assembly_1__model_1 hexameric （6） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 3ejy__assembly_2__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
3 1 3ejy__assembly_3__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
4 1 3ejy__assembly_4__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 (4)

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6. Fold Classification (SCOP + CATH) 10 domains

CATH v4.4 (10 domains)

Domain ID domain_id3ejyA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology3080 — Clc chloride channel
Homologous superfamily homologous superfamily10 — Clc chloride channel
Domain ID domain_id3ejyB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology3080 — Clc chloride channel
Homologous superfamily homologous superfamily10 — Clc chloride channel
Domain ID domain_id3ejyC01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id3ejyC02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id3ejyD01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id3ejyD02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id3ejyE01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id3ejyE02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id3ejyF01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id3ejyF02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
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7. Citations (1)