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3im3

Crystal structure of PKA RI alpha dimerization/docking domain

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

cAMP-dependent protein kinase type I-alpha regulatory subunit

Bos taurus

UniProt P00514

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 2 FORMIC ACID × 4 water × 2 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1ne4 1ne6 1rgs 1rl3 1rl3 3iia 3plq 3pna 3pna 4jv4 4mx3 4mx3

20 assemblies; showing the first 12

Homodimer
2ezw 3im3 4mx3

3 assemblies

Homotetramer
3pna

1 assemblies

Other homooligomers

None

Heteromeric or nucleic-acid complex
2qcs 3fhi 3im4 3pvb 4x6r 5hvz 5jr7 5jr7 6byr 6byr 6byr 6bys

23 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name KAP0_BOVIN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–50； UniProt 13–62

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_id3im3
Deposition date deposition_date2009-08-09
Structure title titleCrystal structure of PKA RI alpha dimerization/docking domain
Keywords keywords;helix-turn-helix, Acetylation, cAMP, cAMP-binding, Disulfide bond, Nucleotide-binding, Phosphoprotein, STRUCTURAL PROTEIN, SIGNALING PROTEIN ;; STRUCTURAL PROTEIN, SIGNALING 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.

3im3__assembly_1__model_1

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

Download this curve (.dat)

3im3__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.

3im3__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）15.74 Å
Rg (electron density)14.26 Å
Total Rg15.62 Å
Atom count850
Residues100
Excluded volume15247 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3im3__assembly_1__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 (3)

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd3im3a_
Class classa — All alpha proteins
Fold Fold folda.31 — Dimerization-anchoring domain of cAMP-dependent PK regulatory subunit
Superfamily Superfamily superfamilya.31.1 — Dimerization-anchoring domain of cAMP-dependent PK regulatory subunit
Family Family familya.31.1.1 — Dimerization-anchoring domain of cAMP-dependent PK regulatory subunit

CATH v4.4 (1 domains)

Domain ID domain_id3im3A00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology890 — cAMP-dependent Protein Kinase, Chain A
Homologous superfamily homologous superfamily10 — cAMP-dependent protein kinase regulatory subunit, dimerization-anchoring domain
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7. Citations (1)