Structure analysis

Cryo-EM structure of the ZH8651-bound mTAAR1-Gs complex

Electron Microscopy
3.1Å resolution
Assembly composition:
hetero pentamer (preferred)
Entry contents: 5 distinct polypeptide molecules

Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero pentamer
Accessible surface area: 50468.29 Å2
Buried surface area: 10545.93 Å2
Dissociation area: 821.69 Å2
Dissociation energy (ΔGdiss): -4.49 kcal/mol
Dissociation entropy (TΔSdiss): 13.39 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-273940

Macromolecules

Chain: A
Length: 362 amino acids
Theoretical weight: 42.01 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P63096 (Residues: 1-19, 61-181, 229-242; Coverage: 41%)
  • Canonical: P63092 (Residues: 27-67, 205-251, 266-394; Coverage: 55%)
  • nullnull
Gene names: GNAI1, GNAS, GNAS1, GSP
Pfam: G-protein alpha subunit
PDBe-KB: UniProt Coverage View: P63096   P63092  
136250100150200250300350
 
100200300
UniProt
P63096
P63092
Chains
Secondary structure
Interaction interfaces
Sequence conservation

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Chain: B
Length: 345 amino acids
Theoretical weight: 37.92 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P62873 (Residues: 2-340; Coverage: 100%)
Gene name: GNB1
Pfam: WD domain, G-beta repeat
PDBe-KB: UniProt Coverage View: P62873  
134550100150200250300
 
100200300
UniProt
P62873
Chains
Secondary structure
Interaction interfaces
Sequence conservation

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Chain: R
Length: 332 amino acids
Theoretical weight: 37.66 KDa
Source organism: Mus musculus
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q923Y8 (Residues: 1-332; Coverage: 100%)
Gene names: Ta1, Taar1, Tar1, Trar1
Pfam: 7 transmembrane receptor (rhodopsin family)
PDBe-KB: UniProt Coverage View: Q923Y8  
133250100150200250300
 
100200300
UniProt
Q923Y8
Chains
Secondary structure
Ligand binding sites
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Chain: S
Length: 285 amino acids
Theoretical weight: 30.36 KDa
Source organism: synthetic construct
Expression system: Spodoptera frugiperda
128520406080100120140160180200220240260280
 
100200
Chains
Chain D (auth S)
Secondary structure
Interaction interfaces
Sequence conservation

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Chain: Y
Length: 71 amino acids
Theoretical weight: 7.86 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P59768 (Residues: 1-71; Coverage: 100%)
Gene name: GNG2
Pfam: GGL domain
PDBe-KB: UniProt Coverage View: P59768  
171510152025303540455055606570
 
204060MASNNTASIAQARKLVEQLKMEANIDRIKVSKAAADLMAYCEAHAKEDPLLTPVPASENPFREKKFFCAIL
UniProt
P59768
Chains
Secondary structure
Interaction interfaces

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