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9rup

Cryo-EM structure of TCRpub/pMHC dimer

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Beta-2-microglobulin

Homo sapiens

UniProt P61769

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 10 T cell receptor, alpha chain × 2 T cell receptor, beta chain × 2 MHC class I antigen × 2 （A0A0D6K978） ORF3a_207-215 epitope × 2 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1jnj 1lds 1py4 1py4 1py4 1py4 2d4d 2d4f 2vb5 2xks 2xku 2yxf

61 assemblies; showing the first 12

Homodimer
2x89 2x89 2z9t 3low 4r9h 4r9h 4ra3 4ra3 4rah 6m1b

10 assemblies

Homotetramer
2e8d 2f8o 3tlr 3tm6 3tm6 7afv

6 assemblies

Other homooligomers
3ciq 3ciq 3loz 6gk3 8a7o 8a7p 8a7q 8a7t

8 assemblies

Heteromeric or nucleic-acid complex
1a1m 1a1n 1a1o 1a6z 1a6z 1a9b 1a9b 1a9e 1agb 1agc 1agd 1age

1914 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name B2MG_HUMAN
Isoform —
PDB entities 3
Chains and sequence ranges Author chain E； PDBConstruct 1–99； UniProt 21–119 Author chain e； PDBConstruct 1–99； UniProt 21–119

MHC class I antigen

Homo sapiens

UniProt A0A0D6K978

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 10 T cell receptor, alpha chain × 2 T cell receptor, beta chain × 2 Beta-2-microglobulin × 2 （P61769） ORF3a_207-215 epitope × 2 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
9rup

1 assemblies

View Construct and Data Evidence
UniProt name A0A0D6K978_HUMAN
Isoform —
PDB entities 4
Chains and sequence ranges Author chain C； PDBConstruct 1–276； UniProt 2–277 Author chain c； PDBConstruct 1–276； UniProt 2–277

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_id9rup
Deposition date deposition_date2025-07-04
Structure title titleCryo-EM structure of TCRpub/pMHC dimer
Keywords keywordscomplex, IMMUNE SYSTEM; IMMUNE SYSTEM
Experimental Method methodELECTRON MICROSCOPY
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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.

9rup__assembly_1__model_1

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

Download this curve (.dat)

9rup__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.

9rup__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）42.06 Å
Rg (electron density)41.83 Å
Total Rg42.09 Å
Atom count12807
Residues1596
Excluded volume224200 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 9rup__assembly_1__model_1 decameric （10） 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 (5)

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7. Citations (1)