5um4

Crystal structure of the F255A mutant Kir3.1 cytoplasmic pore domain

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

G protein-activated inward rectifier potassium channel 1

Mus musculus

UniProt H9GIV0

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Insufficient information Monomer Protein 1 water × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name H9GIV0_ANOCA
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 7–29; UniProt 34–56

G protein-activated inward rectifier potassium channel 1

Mus musculus

UniProt P63250

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Insufficient information Monomer Protein 1 water × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name KCNJ3_MOUSE
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 30–210; UniProt 190–370

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_id5um4
Deposition date deposition_date2017-01-26
Structure title titleCrystal structure of the F255A mutant Kir3.1 cytoplasmic pore domain
Keywords keywordsinward-rectifier K(+) channel, TRANSPORT PROTEIN; 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.

5um4__assembly_1__model_1

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

Download this curve (.dat)

5um4__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.

5um4__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)19.54 Å
Rg (electron density)18.47 Å
Total Rg19.45 Å
Atom count1544
Residues195
Excluded volume27509 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 5um4__assembly_1__model_1 monomeric (1) 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 (2)

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd5um4a_
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.18 — E set domains
Family Family familyb.1.18.16 — Cytoplasmic domain of inward rectifier potassium channel

CATH v4.4 (1 domains)

Domain ID domain_id5um4A00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily1400 — G protein-activated inward rectifier potassium channel 1
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7. Citations (1)