8DVC image
Entry Detail
PDB ID:
8DVC
Title:
Receptor ShHTL5 from Striga hermonthica in complex with strigolactone agonist GR24
Biological Source:
Source Organism:
PDB Version:
Deposition Date:
2022-07-28
Release Date:
2023-06-14
Method Details:
Experimental Method:
Resolution:
2.64 Å
R-Value Free:
0.24
R-Value Work:
0.18
R-Value Observed:
0.18
Space Group:
C 2 2 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Hyposensitive to light 5
Mutations:S95A
Chain IDs:A, B, C, D, E
Chain Length:271
Number of Molecules:5
Biological Source:Striga hermonthica
Primary Citation
Structural analysis of a hormone-bound Striga strigolactone receptor.
Nat.Plants 9 883 888 (2023)
PMID: 37264151 DOI: 10.1038/s41477-023-01423-y

Abstact

Strigolactones (SLs) regulate many aspects of plant development, but ambiguities remain about how this hormone is perceived because SL-complexed receptor structures do not exist. We find that when SL binds the Striga receptor, ShHTL5, a series of conformational changes relative to the unbound state occur, but these events are not sufficient for signalling. Ligand-complexed receptors, however, form internal tunnels that posit an explanation for how SL exits its receptor after hydrolysis.

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Primary Citation of related structures