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4d0d

COMPLEX OF A B2 CHICKEN MHC CLASS I MOLECULE AND A 8MER CHICKEN PEPTIDE

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

MAJOR HISTOCOMPATIBILITY COMPLEX CLASS I GLYCOPROTEIN HAPLOTYPE B2

GALLUS GALLUS

UniProt O46789

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 BETA-2-MICROGLOBULIN × 1 （P21611） SLP-76 ADAPTOR PROTEIN × 1 （Q9DG07） water × 2 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 3 BETA-2-MICROGLOBULIN × 1 （P21611） SLP-76 ADAPTOR PROTEIN × 1 （Q9DG07） water × 2 Consistent with protein count
3 Protein heterocomplex Heteromer Protein 3 BETA-2-MICROGLOBULIN × 1 （P21611） SLP-76 ADAPTOR PROTEIN × 1 （Q9DG07） water × 2 Consistent with protein count
4 Protein heterocomplex Heteromer Protein 3 BETA-2-MICROGLOBULIN × 1 （P21611） SLP-76 ADAPTOR PROTEIN × 1 （Q9DG07） water × 1 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
4cvx 4cvx 4d0d 4d0d 4d0d 4d0d 8y74 8z0h 8z0h 8z0h 8z0h

11 assemblies

View Construct and Data Evidence
UniProt name O46789_CHICK
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–272； UniProt 22–293 Author chain D； PDBConstruct 1–272； UniProt 22–293 Author chain G； PDBConstruct 1–272； UniProt 22–293 Author chain J； PDBConstruct 1–272； UniProt 22–293

BETA-2-MICROGLOBULIN

GALLUS GALLUS

UniProt P21611

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 MAJOR HISTOCOMPATIBILITY COMPLEX CLASS I GLYCOPROTEIN HAPLOTYPE B2 × 1 （O46789） SLP-76 ADAPTOR PROTEIN × 1 （Q9DG07） water × 2 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 3 MAJOR HISTOCOMPATIBILITY COMPLEX CLASS I GLYCOPROTEIN HAPLOTYPE B2 × 1 （O46789） SLP-76 ADAPTOR PROTEIN × 1 （Q9DG07） water × 2 Consistent with protein count
3 Protein heterocomplex Heteromer Protein 3 MAJOR HISTOCOMPATIBILITY COMPLEX CLASS I GLYCOPROTEIN HAPLOTYPE B2 × 1 （O46789） SLP-76 ADAPTOR PROTEIN × 1 （Q9DG07） water × 2 Consistent with protein count
4 Protein heterocomplex Heteromer Protein 3 MAJOR HISTOCOMPATIBILITY COMPLEX CLASS I GLYCOPROTEIN HAPLOTYPE B2 × 1 （O46789） SLP-76 ADAPTOR PROTEIN × 1 （Q9DG07） water × 1 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
3o81 3o81

2 assemblies

Homodimer
3o81

1 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
2yez 3bev 3bew 3bew 3jvg 3jvg 3p73 3p77 4cvx 4cvx 4cvz 4cw1

53 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name B2MG_CHICK
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 1–98； UniProt 22–119 Author chain E； PDBConstruct 1–98； UniProt 22–119 Author chain H； PDBConstruct 1–98； UniProt 22–119 Author chain K； PDBConstruct 1–98； UniProt 22–119

SLP-76 ADAPTOR PROTEIN

OrganismNot specified

UniProt Q9DG07

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 3 MAJOR HISTOCOMPATIBILITY COMPLEX CLASS I GLYCOPROTEIN HAPLOTYPE B2 × 1 （O46789） BETA-2-MICROGLOBULIN × 1 （P21611） water × 2 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 3 MAJOR HISTOCOMPATIBILITY COMPLEX CLASS I GLYCOPROTEIN HAPLOTYPE B2 × 1 （O46789） BETA-2-MICROGLOBULIN × 1 （P21611） water × 2 Consistent with protein count
3 Protein heterocomplex Heteromer Protein 3 MAJOR HISTOCOMPATIBILITY COMPLEX CLASS I GLYCOPROTEIN HAPLOTYPE B2 × 1 （O46789） BETA-2-MICROGLOBULIN × 1 （P21611） water × 2 Consistent with protein count
4 Protein heterocomplex Heteromer Protein 3 MAJOR HISTOCOMPATIBILITY COMPLEX CLASS I GLYCOPROTEIN HAPLOTYPE B2 × 1 （O46789） BETA-2-MICROGLOBULIN × 1 （P21611） water × 1 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
4d0d 4d0d 4d0d 4d0d

4 assemblies

View Construct and Data Evidence
UniProt name Q9DG07_CHICK
Isoform —
PDB entities 3
Chains and sequence ranges Author chain C； PDBConstruct 1–8； UniProt 159–166 Author chain F； PDBConstruct 1–8； UniProt 159–166 Author chain I； PDBConstruct 1–8； UniProt 159–166 Author chain L； PDBConstruct 1–8； UniProt 159–166

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_id4d0d
Deposition date deposition_date2014-04-25
Structure title titleCOMPLEX OF A B2 CHICKEN MHC CLASS I MOLECULE AND A 8MER CHICKEN PEPTIDE
Keywords keywordsIMMUNE SYSTEM; IMMUNE SYSTEM
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.

4d0d__assembly_4__model_1

Assembly 4 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

4d0d__assembly_4__model_1 | I(q)

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

4d0d__assembly_4__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）24.02 Å
Rg (electron density)23.00 Å
Total Rg23.92 Å
Atom count3043
Residues379
Excluded volume53467 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 4d0d__assembly_1__model_1 trimeric （3） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 4d0d__assembly_2__model_1 trimeric （3） Success 4.1.3-1-20251215 (887e7ef) View Download
3 1 4d0d__assembly_3__model_1 trimeric （3） Success 4.1.3-1-20251215 (887e7ef) View Download
4 1 4d0d__assembly_4__model_1 trimeric （3） 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 (4)

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6. Fold Classification (SCOP + CATH) 12 domains

CATH v4.4 (12 domains)

Domain ID domain_id4d0dA01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology500 — Murine Class I Major Histocompatibility Complex, H2-DB; Chain A, domain 1
Homologous superfamily homologous superfamily10 — MHC class I-like antigen recognition-like
Domain ID domain_id4d0dA02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id4d0dB00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id4d0dD01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology500 — Murine Class I Major Histocompatibility Complex, H2-DB; Chain A, domain 1
Homologous superfamily homologous superfamily10 — MHC class I-like antigen recognition-like
Domain ID domain_id4d0dD02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id4d0dE00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id4d0dG01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology500 — Murine Class I Major Histocompatibility Complex, H2-DB; Chain A, domain 1
Homologous superfamily homologous superfamily10 — MHC class I-like antigen recognition-like
Domain ID domain_id4d0dG02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id4d0dH00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id4d0dJ01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology500 — Murine Class I Major Histocompatibility Complex, H2-DB; Chain A, domain 1
Homologous superfamily homologous superfamily10 — MHC class I-like antigen recognition-like
Domain ID domain_id4d0dJ02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id4d0dK00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
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7. Citations (1)