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7ui5

Evolution avoids a pathological stabilizing interaction in the immune protein S100A9

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

Protein S100-A9

Homo sapiens

UniProt P06702

State in the Current Structure

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

Other States of the Same Protein in the Database

Monomer

None

Homodimer
1irj 1irj 1irj 1irj 5i8n 7ui5

6 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1xk4 1xk4 1xk4 4ggf 4ggf 4xjk 4xjk 4xjk 5w1f 5w1f 6ds2 6ds2

20 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name S10A9_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–114； UniProt 1–114 Author chain B； PDBConstruct 1–114； UniProt 1–114

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_id7ui5
Deposition date deposition_date2022-03-28
Structure title titleEvolution avoids a pathological stabilizing interaction in the immune protein S100A9
Keywords keywordsS100A9; calcium binding; S100; signaling, SIGNALING PROTEIN; SIGNALING 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.

7ui5__assembly_1__model_1

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

Download this curve (.dat)

7ui5__assembly_1__model_1 | I(q)

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

7ui5__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）24.38 Å
Rg (electron density)23.65 Å
Total Rg24.19 Å
Atom count3672
Residues228
Excluded volume32986 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 7ui5__assembly_1__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 2 7ui5__assembly_1__model_2 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 3 7ui5__assembly_1__model_3 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 4 7ui5__assembly_1__model_4 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 5 7ui5__assembly_1__model_5 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 6 7ui5__assembly_1__model_6 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 7 7ui5__assembly_1__model_7 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 8 7ui5__assembly_1__model_8 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 9 7ui5__assembly_1__model_9 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 10 7ui5__assembly_1__model_10 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 (2)

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7. Citations (1)