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1jq2

POTASSIUM CHANNEL (KCSA) OPEN GATE MODEL

Method: SOLUTION NMR
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1. Protein Identity and Related Structures Protein Identity & Related Structures

VOLTAGE-GATED POTASSIUM CHANNEL

Streptomyces lividans

UniProt P0A334

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 4 No other associated polymer Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer
1bl8 1f6g 1j95 1jq1 1jq2 1jvm 2p7t 2qto 3ifx 4msw 5e1a

11 assemblies

Other homooligomers
1jvm 3ifx

2 assemblies

Heteromeric or nucleic-acid complex
1k4c 1k4d 1r3i 1r3j 1r3k 1r3l 1zwi 2a9h 2atk 2bob 2boc 2dwd

84 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name KCSA_STRLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–34； UniProt 86–119 Author chain B； PDBConstruct 1–34； UniProt 86–119 Author chain C； PDBConstruct 1–34； UniProt 86–119 Author chain D； PDBConstruct 1–34； UniProt 86–119

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_id1jq2
Deposition date deposition_date2001-08-03
Structure title titlePOTASSIUM CHANNEL (KCSA) OPEN GATE MODEL
Keywords keywordsPOTASSIUM CHANNEL, INTEGRAL MEMBRANE PROTEIN, OPEN STATE, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method methodSOLUTION NMR
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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.

1jq2__assembly_1__model_1

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

Download this curve (.dat)

1jq2__assembly_1__model_1 | I(q)

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

1jq2__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）18.11 Å
Rg (electron density)17.56 Å
Total Rg17.84 Å
Atom count0
Residues0
Excluded volume18210 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1jq2__assembly_1__model_1 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 2 1jq2__assembly_1__model_2 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 3 1jq2__assembly_1__model_3 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 4 1jq2__assembly_1__model_4 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 5 1jq2__assembly_1__model_5 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 6 1jq2__assembly_1__model_6 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 7 1jq2__assembly_1__model_7 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 8 1jq2__assembly_1__model_8 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 9 1jq2__assembly_1__model_9 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 10 1jq2__assembly_1__model_10 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 11 1jq2__assembly_1__model_11 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 12 1jq2__assembly_1__model_12 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 13 1jq2__assembly_1__model_13 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 14 1jq2__assembly_1__model_14 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 15 1jq2__assembly_1__model_15 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 16 1jq2__assembly_1__model_16 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 17 1jq2__assembly_1__model_17 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 18 1jq2__assembly_1__model_18 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 19 1jq2__assembly_1__model_19 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 20 1jq2__assembly_1__model_20 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 21 1jq2__assembly_1__model_21 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 22 1jq2__assembly_1__model_22 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 23 1jq2__assembly_1__model_23 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 24 1jq2__assembly_1__model_24 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 25 1jq2__assembly_1__model_25 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 26 1jq2__assembly_1__model_26 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 27 1jq2__assembly_1__model_27 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 28 1jq2__assembly_1__model_28 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 29 1jq2__assembly_1__model_29 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 30 1jq2__assembly_1__model_30 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 31 1jq2__assembly_1__model_31 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 32 1jq2__assembly_1__model_32 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 33 1jq2__assembly_1__model_33 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 34 1jq2__assembly_1__model_34 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 35 1jq2__assembly_1__model_35 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 36 1jq2__assembly_1__model_36 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 37 1jq2__assembly_1__model_37 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 38 1jq2__assembly_1__model_38 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 39 1jq2__assembly_1__model_39 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 40 1jq2__assembly_1__model_40 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 41 1jq2__assembly_1__model_41 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 42 1jq2__assembly_1__model_42 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 43 1jq2__assembly_1__model_43 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 44 1jq2__assembly_1__model_44 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 45 1jq2__assembly_1__model_45 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 46 1jq2__assembly_1__model_46 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 47 1jq2__assembly_1__model_47 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 48 1jq2__assembly_1__model_48 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 49 1jq2__assembly_1__model_49 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 50 1jq2__assembly_1__model_50 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 (1)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd1jq2a_
Class classf — Membrane and cell surface proteins and peptides
Fold Fold foldf.14 — Gated ion channels
Superfamily Superfamily superfamilyf.14.1 — Voltage-gated ion channels
Family Family familyf.14.1.1 — Voltage-gated potassium channels
Domain ID domain_idd1jq2b_
Class classf — Membrane and cell surface proteins and peptides
Fold Fold foldf.14 — Gated ion channels
Superfamily Superfamily superfamilyf.14.1 — Voltage-gated ion channels
Family Family familyf.14.1.1 — Voltage-gated potassium channels
Domain ID domain_idd1jq2c_
Class classf — Membrane and cell surface proteins and peptides
Fold Fold foldf.14 — Gated ion channels
Superfamily Superfamily superfamilyf.14.1 — Voltage-gated ion channels
Family Family familyf.14.1.1 — Voltage-gated potassium channels
Domain ID domain_idd1jq2d_
Class classf — Membrane and cell surface proteins and peptides
Fold Fold foldf.14 — Gated ion channels
Superfamily Superfamily superfamilyf.14.1 — Voltage-gated ion channels
Family Family familyf.14.1.1 — Voltage-gated potassium channels
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7. Citations (4)