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Structure of human MR1-Ac-6-FP in complex with human MAIT C-C10 TCR

X-ray diffraction
2.5Å resolution
PDB entry 4pji coloured by chain, front view.
PDB entry 4pji coloured by chain, side view.
PDB entry 4pji coloured by chain, top view.
Source organism: Homo sapiens
Assembly composition:
hetero tetramer (preferred)
Entry contents: 4 distinct polypeptide molecules

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Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero tetramer
Accessible surface area: 36037.43 Å2
Buried surface area: 8409.78 Å2
Dissociation area: 1,094.37 Å2
Dissociation energy (ΔGdiss): -2.62 kcal/mol
Dissociation entropy (TΔSdiss): 13.78 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-211438
Assembly 2
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Multimeric state: hetero tetramer
Accessible surface area: 35746.5 Å2
Buried surface area: 8574.82 Å2
Dissociation area: 1,109.86 Å2
Dissociation energy (ΔGdiss): -3.62 kcal/mol
Dissociation entropy (TΔSdiss): 13.75 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-211438

Macromolecules

Major histocompatibility complex class I-related gene protein
Chains: A, C
Length: 271 amino acids
Theoretical weight: 31.71 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q95460 (Residues: 23-292; Coverage: 85%)
Gene name: MR1
Pfam:
InterPro:
CATH:
Major histocompatibility complex class I-related gene protein in PDB entry 4pji, assembly 1, front view.
Major histocompatibility complex class I-related gene protein in PDB entry 4pji, assembly 1, side view.
Major histocompatibility complex class I-related gene protein in PDB entry 4pji, assembly 1, top view.
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Beta-2-microglobulin
Chains: B, D
Length: 100 amino acids
Theoretical weight: 11.88 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P61769 (Residues: 21-119; Coverage: 100%)
Gene names: B2M, CDABP0092, HDCMA22P
Pfam: Immunoglobulin C1-set domain
InterPro:
CATH: Immunoglobulins
Beta-2-microglobulin in PDB entry 4pji, assembly 1, front view.
Beta-2-microglobulin in PDB entry 4pji, assembly 1, side view.
Beta-2-microglobulin in PDB entry 4pji, assembly 1, top view.
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TCR-alpha
Chains: E, G
Length: 205 amino acids
Theoretical weight: 22.89 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
InterPro:
CATH: Immunoglobulins
TCR-alpha in PDB entry 4pji, assembly 1, front view.
TCR-alpha in PDB entry 4pji, assembly 1, side view.
TCR-alpha in PDB entry 4pji, assembly 1, top view.
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TCR-beta
Chains: F, H
Length: 245 amino acids
Theoretical weight: 27.57 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
InterPro:
CATH: Immunoglobulins
TCR-beta in PDB entry 4pji, assembly 1, front view.
TCR-beta in PDB entry 4pji, assembly 1, side view.
TCR-beta in PDB entry 4pji, assembly 1, top view.
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