8itl

Electron Microscopy
3.23Å resolution

Cryo-EM structure of GIPR splice variant 1 (SV1) in complex with Gs protein

Released:
Primary publication:
Molecular basis of signal transduction mediated by the human GIPR splice variants.
OpenAccess logo Proc Natl Acad Sci U S A 120 e2306145120 (2023)
PMID: 37792509
Related structures: EMD-35706

Function and Biology Details

Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
hetero pentamer (preferred)
PDBe Complex ID:
PDB-CPX-528868 (preferred)
Entry contents:
5 distinct polypeptide molecules
Macromolecules (5 distinct):
Gastric inhibitory polypeptide receptor Chain: R
Molecule details ›
Chain: R
Length: 364 amino acids
Theoretical weight: 42.25 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P48546 (Residues: 22-421; Coverage: 82%)
  • Best match: P48546-3 (Residues: 22-385)
Gene name: GIPR
Sequence domains:
Guanine nucleotide-binding protein G(s) subunit alpha isoforms short Chain: A
Molecule details ›
Chain: A
Length: 394 amino acids
Theoretical weight: 45.73 KDa
Source organism: Bos taurus
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P04896 (Residues: 1-394; Coverage: 100%)
Gene names: GNAS, GNAS1
Sequence domains: G-protein alpha subunit
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 Chain: B
Molecule details ›
Chain: B
Length: 371 amino acids
Theoretical weight: 40.23 KDa
Source organism: Rattus norvegicus
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P54311 (Residues: 2-340; Coverage: 100%)
Gene name: Gnb1
Sequence domains: WD domain, G-beta repeat
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 Chain: G
Molecule details ›
Chain: G
Length: 71 amino acids
Theoretical weight: 7.86 KDa
Source organism: Bos taurus
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P63212 (Residues: 1-71; Coverage: 100%)
Gene name: GNG2
Sequence domains: GGL domain
Nanobody-35 Chain: N
Molecule details ›
Chain: N
Length: 128 amino acids
Theoretical weight: 13.89 KDa
Source organism: synthetic construct
Expression system: Escherichia coli

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 3.23Å
Relevant EMDB volumes: EMD-35706
Expression systems:
  • Spodoptera frugiperda
  • Escherichia coli