6OB5 image
Entry Detail
PDB ID:
6OB5
Title:
Computationally-designed, modular sense/response system (S3-2D)
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2019-03-19
Release Date:
2019-12-04
Method Details:
Experimental Method:
Resolution:
2.21 Å
R-Value Free:
0.25
R-Value Work:
0.20
R-Value Observed:
0.23
Space Group:
P 1 21 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Maltodextrin-binding protein
Chain IDs:A (auth: B), B (auth: A)
Chain Length:372
Number of Molecules:2
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Description:Ankyrin Repeat Domain (AR), S3-2D variant
Chain IDs:C, D
Chain Length:166
Number of Molecules:2
Biological Source:unidentified
Ligand Molecules
Peptide-like Molecules
PRD_900001
Primary Citation
Computational design of a modular protein sense-response system.
Science 366 1024 1028 (2019)
PMID: 31754004 DOI: 10.1126/science.aax8780

Abstact

Sensing and responding to signals is a fundamental ability of living systems, but despite substantial progress in the computational design of new protein structures, there is no general approach for engineering arbitrary new protein sensors. Here, we describe a generalizable computational strategy for designing sensor-actuator proteins by building binding sites de novo into heterodimeric protein-protein interfaces and coupling ligand sensing to modular actuation through split reporters. Using this approach, we designed protein sensors that respond to farnesyl pyrophosphate, a metabolic intermediate in the production of valuable compounds. The sensors are functional in vitro and in cells, and the crystal structure of the engineered binding site closely matches the design model. Our computational design strategy opens broad avenues to link biological outputs to new signals.

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Primary Citation of related structures