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Serotonin 4 (5-HT4) receptor-gi-SCFV16 complex

Analyse Serotonin 4 (5-HT4) receptor-gi-SCFV16 complex in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7XTA
Type
protein
Length
1,115 residues
Chains
5
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Guanine nucleotide-binding protein G(I) subunit alpha-1; Guanine nucleotide-binding…
UniProt
P63096, P62873, P59768, Q13639
Ligands
SRO
Pockets
17 · best druggability 0.82

Structure

electron microscopy · 5 distinct chains · 35% helix, 27% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AGuanine nucleotide-binding protein G(I) subunit alpha-1protein21948% helix, 17% strandP63096
BGuanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1protein3337% helix, 48% strandP62873
ESCFV16protein2305% helix, 46% strand—
GGuanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2protein5052% helix, 0% strandP59768
RSoluble cytochrome B562,5-hydroxytryptamine receptor 4protein28380% helix, 0% strandQ13639

Ligands and binding sites

  • SRO · Serotonin · ligand · chains R

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

17 pockets found on a 1 Å grid, 5 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
17800.820.8567empty
24530.770.8550SRO
38330.740.7971empty
41230.540.8328empty
5890.520.8317empty

Interfaces

6 interfaces between chains.

  • B–G · 2021 Ų buried · 18 hydrogen bonds · protein-protein
  • A–B · 1189 Ų buried · 15 hydrogen bonds · protein-protein
  • A–R · 925 Ų buried · 6 hydrogen bonds · protein-protein
  • A–E · 569 Ų buried · 5 hydrogen bonds · protein-protein
  • B–E · 429 Ų buried · 1 hydrogen bond · protein-protein

Compared structures

  • 7XTA · Serotonin 4 (5-HT4) receptor-Gi-scFv16 complex · the same entry in another collection · chain R against R, TM-score 1.00
  • P62873 · AlphaFold monomer V2.0 prediction for guanine nucleotide-binding protein G(I)/G(S)/G(T)… · a predicted model of the same protein · chain B against A, TM-score 0.99
  • Q13639 · AlphaFold monomer V2.0 prediction for 5-hydroxytryptamine receptor 4 (Q13639) · a predicted model of the same protein · chain R against A, TM-score 0.94
  • P59768 · AlphaFold monomer V2.0 prediction for guanine nucleotide-binding protein G(I)/G(S)/G(O)… · a predicted model of the same protein · chain G against A, TM-score 0.92
  • P63096 · AlphaFold monomer V2.0 prediction for guanine nucleotide-binding protein G(I) subunit… · a predicted model of the same protein · chain A against A, TM-score 0.81

Analyse

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