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3ij4

Cesium sites in the crystal structure of a functional acid sensing ion channel in the desensitized state

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

Amiloride-sensitive cation channel 2, neuronal

Gallus gallus

UniProt Q1XA76

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 3 CHLORIDE ION × 3 CESIUM ION × 12 water × 3 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
7lie

1 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers
2qts 3ij4 4nyk 6ave 6cmc 6vtk 6vtl 6x9h

8 assemblies

Heteromeric or nucleic-acid complex
2qts 3s3w 3s3x 4fz0 4fz1 4ntw 4ntw 4ntx 4ntx 4nty 5wku 5wkv

14 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name ACCN2_CHICK
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–465； UniProt 2–466

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_id3ij4
Deposition date deposition_date2009-08-03
Structure title titleCesium sites in the crystal structure of a functional acid sensing ion channel in the desensitized state
Keywords keywords;ACID-SENSING, FUNCTIONAL, ION CHANNEL, TRIMER, MEMBRANE PROTEIN, SODIUM CHANNEL, Cell membrane, Glycoprotein, Ion transport, Ionic channel, Membrane, Sodium, Sodium transport, Transmembrane, Transport, TRANSPORT PROTEIN, cesium, anomalous ;; TRANSPORT PROTEIN
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.

3ij4__assembly_1__model_1

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

Download this curve (.dat)

3ij4__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

3ij4__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）34.14 Å
Rg (electron density)33.93 Å
Total Rg34.35 Å
Atom count9581
Residues1218
Excluded volume171870 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3ij4__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 (4)

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6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id3ij4A01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology287 — Helix Hairpins
Homologous superfamily homologous superfamily770 — YojJ-like
Domain ID domain_id3ij4A02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology470 — Acid-sensing ion channels like fold
Homologous superfamily homologous superfamily10 — Acid-sensing ion channels like domains
Domain ID domain_id3ij4A03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology3590 — acid-sensing ion channel 1 fold
Homologous superfamily homologous superfamily10 — acid-sensing ion channel 1 domain
Domain ID domain_id3ij4A04
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology287 — Helix Hairpins
Homologous superfamily homologous superfamily820 — Acid-sensing ion channel domain
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7. Citations (1)