7OB0

Structure of RsLOV d2 variant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.178 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

A Light-Oxygen-Voltage Receptor Integrates Light and Temperature.

Dietler, J.Schubert, R.Krafft, T.G.A.Meiler, S.Kainrath, S.Richter, F.Schweimer, K.Weyand, M.Janovjak, H.Moglich, A.

(2021) J Mol Biol 433: 167107-167107

  • DOI: https://doi.org/10.1016/j.jmb.2021.167107
  • Primary Citation of Related Structures:  
    7OB0, 7OBZ

  • PubMed Abstract: 

    Sensory photoreceptors enable organisms to adjust their physiology, behavior, and development in response to light, generally with spatiotemporal acuity and reversibility. These traits underlie the use of photoreceptors as genetically encoded actuators to alter by light the state and properties of heterologous organisms. Subsumed as optogenetics, pertinent approaches enable regulating diverse cellular processes, not least gene expression. Here, we controlled the widely used Tet repressor by coupling to light-oxygen-voltage (LOV) modules that either homodimerize or dissociate under blue light. Repression could thus be elevated or relieved, and consequently protein expression was modulated by light. Strikingly, the homodimeric RsLOV module from Rhodobacter sphaeroides not only dissociated under light but intrinsically reacted to temperature. The limited light responses of wild-type RsLOV at 37 °C were enhanced in two variants that exhibited closely similar photochemistry and structure. One variant improved the weak homodimerization affinity of 40 µM by two-fold and thus also bestowed light sensitivity on a receptor tyrosine kinase. Certain photoreceptors, exemplified by RsLOV, can evidently moonlight as temperature sensors which immediately bears on their application in optogenetics and biotechnology. Properly accounted for, the temperature sensitivity can be leveraged for the construction of signal-responsive cellular circuits.


  • Organizational Affiliation

    Department of Biochemistry, University of Bayreuth, 95447 Bayreuth, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
LOV protein
A, B, C, D
176Cereibacter sphaeroides ATCC 17025Mutation(s): 7 
UniProt
Find proteins for M1E1F8 (Cereibacter sphaeroides (strain ATCC 17025 / ATH 2.4.3))
Explore M1E1F8 
Go to UniProtKB:  M1E1F8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupM1E1F8
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 5 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
FMN (Subject of Investigation/LOI)
Query on FMN

Download Ideal Coordinates CCD File 
F [auth A],
K [auth B],
M [auth C],
O [auth D]
FLAVIN MONONUCLEOTIDE
C17 H21 N4 O9 P
FVTCRASFADXXNN-SCRDCRAPSA-N
ACT
Query on ACT

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G [auth A],
L [auth B],
N [auth C]
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
CA
Query on CA

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E [auth A],
I [auth B]
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
MG
Query on MG

Download Ideal Coordinates CCD File 
H [auth B]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
NA
Query on NA

Download Ideal Coordinates CCD File 
J [auth B]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.178 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 58.057α = 90
b = 77.168β = 90
c = 155.002γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
pointlessdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Alexander von Humboldt FoundationGermanySofja Kovalevskaya Award

Revision History  (Full details and data files)

  • Version 1.0: 2021-06-30
    Type: Initial release
  • Version 1.1: 2021-07-07
    Changes: Database references
  • Version 1.2: 2024-01-31
    Changes: Data collection, Database references, Refinement description