Abstract
Chemically inducible dimerization (CID) uses a small molecule to induce binding of two different proteins. CID tools such as the FK506-binding protein–FKBP–rapamycin-binding– (FKBP–FRB)–rapamycin system have been widely used to probe molecular events inside and outside cells. While various CID tools are available, chemically inducible trimerization (CIT) does not exist, due to inherent challenges in designing a chemical that simultaneously binds three proteins with high affinity and specificity. Here, we developed CIT by rationally splitting FRB and FKBP. Cellular and structural datasets showed efficient trimerization of split pairs of FRB or FKBP with full-length FKBP or FRB, respectively, by rapamycin. CIT rapidly induced tri-organellar junctions and perturbed intended membrane lipids exclusively at select membrane contact sites. By conferring one additional condition to what is achievable with CID, CIT expands the types of manipulation in single live cells to address cell biology questions otherwise intractable and engineer cell functions for future synthetic biology applications.
This is a preview of subscription content, access via your institution
Access options
Access Nature and 54 other Nature Portfolio journals
Get Nature+, our best-value online-access subscription
$29.99 / 30 days
cancel any time
Subscribe to this journal
Receive 12 print issues and online access
$259.00 per year
only $21.58 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
Data availability
The data that support the findings of this study are available from the corresponding authors upon reasonable request. Source data are provided with this paper.
References
Fegan, A., White, B., Carlson, J. C. & Wagner, C. R. Chemically controlled protein assembly: techniques and applications. Chem. Rev. 110, 3315–3336 (2010).
DeRose, R., Miyamoto, T. & Inoue, T. Manipulating signaling at will: chemically-inducible dimerization (CID) techniques resolve problems in cell biology. Pflug. Arch. 465, 409–417 (2013).
Spencer, D. M., Wandless, T. J., Schreiber, S. L. & Crabtree, G. R. Controlling signal transduction with synthetic ligands. Science 262, 1019–1024 (1993).
Komatsu, T. et al. Organelle-specific, rapid induction of molecular activities and membrane tethering. Nat. Methods 7, 206–208 (2010).
Haruki, H., Nishikawa, J. & Laemmli, U. K. The anchor-away technique: rapid, conditional establishment of yeast mutant phenotypes. Mol. Cell 31, 925–932 (2008).
Putyrski, M. & Schultz, C. Protein translocation as a tool: the current rapamycin story. FEBS Lett. 586, 2097–2105 (2012).
Miyamoto, T. et al. Rapid and orthogonal logic gating with a gibberellin-induced dimerization system. Nat. Chem. Biol. 8, 465–470 (2012).
Stanton, B. Z., Chory, E. J. & Crabtree, G. R. Chemically induced proximity in biology and medicine. Science 359, eaao5902 (2018).
Ma, D., Peng, S. & Xie, Z. Integration and exchange of split dCas9 domains for transcriptional controls in mammalian cells. Nat. Commun. 7, 13056 (2016).
Lambright, D. G. et al. The 2.0 A crystal structure of a heterotrimeric G protein. Nature 379, 311–319 (1996).
Higashi, T. & Miller, A. L. Tricellular junctions: how to build junctions at the TRICkiest points of epithelial cells. Mol. Biol. Cell 28, 2023–2034 (2017).
Hennecke, J. & Wiley, D. C. T cell receptor-MHC interactions up close. Cell 104, 1–4 (2001).
Banaszynski, L. A., Liu, C. W. & Wandless, T. J. Characterization of the FKBP·rapamycin·FRB ternary complex. J. Am. Chem. Soc. 127, 4715–4721 (2005).
Choi, J., Chen, J., Schreiber, S. L. & Clardy, J. Structure of the FKBP12–rapamycin complex interacting with the binding domain of human FRAP. Science 273, 239–242 (1996).
Stankunas, K. et al. Rescue of degradation-prone mutants of the FK506–rapamycin binding (FRB) protein with chemical ligands. Chem. Bio. Chem. 8, 1162–1169 (2007).
Liberles, S. D., Diver, S. T., Austin, D. J. & Schreiber, S. L. Inducible gene expression and protein translocation using nontoxic ligands identified by a mammalian three-hybrid screen. Proc. Natl Acad. Sci. USA 94, 7825–7830 (1997).
Bayle, J. H. et al. Rapamycin analogs with differential binding specificity permit orthogonal control of protein activity. Chem. Biol. 13, 99–107 (2006).
Dagliyan, O. et al. Computational design of chemogenetic and optogenetic split proteins. Nat. Commun. 9, 4042 (2018).
Dagliyan, O. et al. Engineering extrinsic disorder to control protein activity in living cells. Science 354, 1441–1444 (2016).
Dagliyan, O., Dokholyan, N. V. & Hahn, K. M. Engineering proteins for allosteric control by light or ligands. Nat. Protoc. 14, 1863–1883 (2019).
Belshaw, P. J., Schoepfer, J. G., Liu, K. Q., Morrison, K. L. & Schreiber, S. L. Rational design of orthogonal receptor–ligand combinations. Angew. Chem. Int. Ed. Engl. 34, 2129–2132 (1995).
Varnai, P., Toth, B., Toth, D. J., Hunyady, L. & Balla, T. Visualization and manipulation of plasma membrane-endoplasmic reticulum contact sites indicates the presence of additional molecular components within the STIM1-Orai1 Complex. J. Biol. Chem. 282, 29678–29690 (2007).
Dickson, E. J. et al. Dynamic formation of ER-PM junctions presents a lipid phosphatase to regulate phosphoinositides. J. Cell Biol. 213, 33–48 (2016).
Phillips, M. J. & Voeltz, G. K. Structure and function of ER membrane contact sites with other organelles. Nat. Rev. Mol. Cell Biol. 17, 69–82 (2016).
Valm, A. M. et al. Applying systems-level spectral imaging and analysis to reveal the organelle interactome. Nature 546, 162–167 (2017).
Prinz, W. A. Bridging the gap: membrane contact sites in signaling, metabolism, and organelle dynamics. J. Cell Biol. 205, 759–769 (2014).
Luik, R. M., Wang, B., Prakriya, M., Wu, M. M. & Lewis, R. S. Oligomerization of STIM1 couples ER calcium depletion to CRAC channel activation. Nature 454, 538–542 (2008).
Liou, J. et al. STIM is a Ca2+ sensor essential for Ca2+-store-depletion-triggered Ca2+ influx. Curr. Biol. 15, 1235–1241 (2005).
Rizzuto, R. et al. Close contacts with the endoplasmic reticulum as determinants of mitochondrial Ca2+ responses. Science 280, 1763–1766 (1998).
Levine, T. & Loewen, C. Inter-organelle membrane contact sites: through a glass, darkly. Curr. Opin. Cell Biol. 18, 371–378 (2006).
Friedman, J. R. et al. ER tubules mark sites of mitochondrial division. Science 334, 358–362 (2011).
Rowland, A. A., Chitwood, P. J., Phillips, M. J. & Voeltz, G. K. ER contact sites define the position and timing of endosome fission. Cell 159, 1027–1041 (2014).
Helle, S. C. et al. Organization and function of membrane contact sites. Biochim. Biophys. Acta 1833, 2526–2541 (2013).
Zewe, J. P., Wills, R. C., Sangappa, S., Goulden, B. D. & Hammond, G. R. SAC1 degrades its lipid substrate PtdIns4P in the endoplasmic reticulum to maintain a steep chemical gradient with donor membranes. eLife 7, e35588 (2018).
Hamasaki, M. et al. Autophagosomes form at ER–mitochondria contact sites. Nature 495, 389–393 (2013).
Saheki, Y. & De Camilli, P. Endoplasmic reticulum-plasma membrane contact sites. Annu. Rev. Biochem. 86, 659–684 (2017).
Chang, C. L. & Liou, J. Phosphatidylinositol 4,5-bisphosphate homeostasis regulated by Nir2 and Nir3 proteins at endoplasmic reticulum-plasma membrane junctions. J. Biol. Chem. 290, 14289–14301 (2015).
Idevall-Hagren, O., Dickson, E. J., Hille, B., Toomre, D. K. & De Camilli, P. Optogenetic control of phosphoinositide metabolism. Proc. Natl Acad. Sci. USA 109, E2316–E2323 (2012).
Karginov, A. V., Ding, F., Kota, P., Dokholyan, N. V. & Hahn, K. M. Engineered allosteric activation of kinases in living cells. Nat. Biotechnol. 28, 743–747 (2010).
Suh, B. C., Inoue, T., Meyer, T. & Hille, B. Rapid chemically induced changes of PtdIns(4,5)P2 gate KCNQ ion channels. Science 314, 1454–1457 (2006).
Heinig, M. & Frishman, D. STRIDE: a web server for secondary structure assignment from known atomic coordinates of proteins. Nucleic Acids Res. 32, W500–W502 (2004).
Colell, E. A., Iserte, J. A., Simonetti, F. L. & Marino-Buslje, C. MISTIC2: comprehensive server to study coevolution in protein families. Nucleic Acids Res. 46, W323–W328 (2018).
Finn, R. D. et al. Pfam: the protein families database. Nucleic Acids Res. 42, D222–D230 (2014).
Yin, S. Y., Ding, F. & Dokholyan, N. V. Eris: an automated estimator of protein stability. Nat. Methods 4, 466–467 (2007).
Kabsch, W. Automatic processing of rotation diffraction data from crystals of initially unknown symmetry and cell constants. J. Appl. Crystallogr. 26, 795–800 (1993).
Winn, M. D. et al. Overview of the CCP4 suite and current developments. Acta Crystallogr. Sect. D. Biol. Crystal. 67, 235–242 (2011).
Vagin, A. & Teplyakov, A. Molecular replacement with MOLREP. Acta Crystallogr. Sect. D. Biol. Crystal. 66, 22–25 (2010).
Emsley, P., Lohkamp, B., Scott, W. G. & Cowtan, K. Features and development of Coot. Acta Crystallogr. Sect. D. Biol. Crystal. 66, 486–501 (2010).
Murshudov, G. N., Vagin, A. A. & Dodson, E. J. Refinement of macromolecular structures by the maximum-likelihood method. Acta Crystallogr. Sect. D. Biol. Crystal. 53, 240–255 (1997).
Adams, P. D. et al. PHENIX: a comprehensive Python-based system for macromolecular structure solution. Acta Crystallogr. Sect. D. Biol. Crystal. 66, 213–221 (2010).
Laskowski, R. A. & Swindells, M. B. LigPlot+: multiple ligand-protein interaction diagrams for drug discovery. J. Chem. Inf. Model. 51, 2778–2786 (2011).
Acknowledgements
We thank L. Bertozzi and S. Thompson for help with plasmid generation. We thank R. DeRose, X.Y. Zhou and Y. Nihongaki for proofreading the manuscript. We thank H. Niwa (RIKEN), N. Sakai (RIKEN) and the staff at the BL26B2 beamline (Proposal No. 20190047) of SPring-8 (Harima, Japan) and the X06DA beamline (Proposal No. 20171001) of the Swiss Light Source, Paul Scherrer Institut (Villigen, Switzerland) for their help in X-ray diffraction data collection. We acknowledge support from the National Institutes for Health (grant nos. 5R01GM123130 to T.I., and 5R01GM123247 and 1R35 GM134864 to N.V.D.), the Passan Foundation to N.V.D., the DoD DARPA (grant no. HR0011-16-C-0139 to T.I.), and the PRESTO program of the Japan Science and Technology Agency to T.U. (grant no. JPMJPR12A3) and T.I. (grant no. JPMJPR12A5) and a Grant-in-Aid for Scientific Research (B) to T.U. (grant no. 16H05089) from the Japan Society for the Promotion of Science.
Author information
Authors and Affiliations
Contributions
H.D.W. and H.N. conceived the study with input from T.I. H.D.W. carried out cell experiments and conducted image analysis with help from A.K.A. M.K. purified and crystalized split proteins, and determined protein structure by X-ray crystallography. O.D. conducted rational split site analysis. T.I., H.N., T.U. and N.V.D. supervised the project. H.D.W. wrote the manuscript in consultation with T.I. and with input from M.K., T.U., O.D. and N.V.D.
Corresponding authors
Ethics declarations
Competing interests
There is an ongoing disclosure associated with the CIT tools.
Additional information
Peer review information Rita Strack was the primary editor on this article and managed its editorial process and peer review in collaboration with the rest of the editorial team.
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Extended data
Extended Data Fig. 1 Negative controls for cytosolic FKBP recruitment to ER-PM MCS.
a, Assessing contributions of each CIT component in CFP-FKBP recruitment to ER-PM MCS; left, middle and center panels correspond to constructs lacking ER, PM, and cytosolic CIT components. b, Quantifying trimerization between the 3 signals pre- and post- 100 nM rapamycin. Check marks specify each combination of two wavelengths used in calculating pairwise Fisher’s transformation of Pearson’s correlation coefficients. Data are presented as mean values +/− SD. Two-tailed Student’s t-test assuming equal variance was used to compare correlations pre- and post-rapamycin. Fom left to right: n = 38, 27, and 32 cells; 3 independent experiments each. Scalebar, 10 μm. (***/****; p < 0.001/0.0001).
Extended Data Fig. 2 sFKBP-based CIT recruitment of cytosolic FRB to ER-PM MCS.
(a, b) Recruitment of mCh-FRB to ER-PM junctions by ER and PM targeted sFKBP1N and sFKBP1C, pre- and 1 h post- 100 nM rapamycin addition. FRB-mCh recruitment can be (a) undetectable or (b) prominent. (c) Quantifying trimerization between the 3 signals pre- and post-rapamycin. Check marks specify each combination of two wavelengths used in calculating pairwise Fisher’s transformation of Pearson’s correlation coefficients. Data are presented as mean values +/- SD. Two-tailed Student’s t-test assuming equal variance was used to compare correlations pre- and post-rapamycin. From left to right: n = 24 cells; 3 independent experiments each. Scalebar, 10 μm. (****; p < 0.0001).
Extended Data Fig. 3 Negative controls for cytosolic FKBP recruitment to ER-mitochondria MCS.
a, Assessing contributions of each CIT component in CFP-FKBP recruitment to ER-mitochondria MCS; left, middle and center panels correspond to constructs lacking ER, mitochondria, and cytosolic CIT components. b, Quantifying trimerization between the 3 signals pre- and post- 100 nM rapamycin. Check marks specify each combination of two wavelengths used in calculating pairwise Fisher’s transformation of Pearson’s correlation coefficients. Data are presented as mean values +/− SD. Two-tailed Student’s t-test assuming equal variance was used to compare correlations pre- and 12 mins post-rapamycin. From left to right: n = 32, 26, and 24 cells; 3 independent experiments each. Scalebar, 10 μm. (****; p < 0.0001).
Extended Data Fig. 4 Negative controls for CIT-induced ER-mitochondria-PM tri-organellar membrane contact sites (MCS).
a, Assessing contributions of each CIT component in tri-organellar MCS formation; left, middle and center panels correspond to constructs lacking ER, mitochondria, and PM CIT components. b, Quantifying trimerization between the 3 signals pre- and post- 100 nM rapamycin. Check marks specify each combination of two wavelengths used in calculating pairwise Fisher’s transformation of Pearson’s correlation coefficients. Data are presented as mean values +/- SD. Two-tailed Student’s t-test assuming equal variance was used to compare correlations pre- and 15 mins post-rapamycin. From left to right: n = 24, 32 and 28 cells; 3 independent experiments each. Scalebar, 10 μm. (****; p < 0.0001).
Extended Data Fig. 5 PIP2 biosensor intensity at ER-PM junction sites over time.
Intensities of mRuby–PH-PLCδ PIP2 biosensor of user defined regions of interest inside and outside ER-PM MCS at 1, 2, 3, 4 and 10 min after 100 nM rapamycin. Significance analyzed with two-tailed paired Students t-tests assuming equal variance. From left to right: n = 28, 25 and 28 cells; 4 independent experiments each. (*/***/****; p < 0.05/0.001/0.0001).
Supplementary information
Supplementary Information
Supplementary Figs. 1–7
Supplementary Video 1
Timelapse epifluorescence images of Cos-7 cells showing recruitment of cytosolic FKBP (magenta) to ER–PM junction sites with CIT on rapamycin addition. ER in cyan, PM in yellow. Constructs expressed: sFRB1N–CFP–Cb5/Tom20–YFP–sFRB1C/mCh–FKBP. Time in mm:ss; scale bar, 10 μm.
Supplementary Video 2
Timelapse epifluorescence images of Cos-7 cells showing recruitment of cytosolic FRB (magenta) to ER–PM junction sites with CIT on rapamycin addition. ER in cyan, PM in yellow. Constructs expressed: CFP–FKBP1C-Cb5/Lyn–YFP–sFKBP1N/FRB–mCh. Time in mm:ss; scale bar, 10 μm.
Supplementary Video 3
Timelapse epifluorescence images of Cos-7 cells showing recruitment of cytosolic FKBP (magenta) to ER–mitochondria junction sites with CIT on rapamycin addition. ER in cyan, mitochondria in yellow. Constructs expressed: mCh–sFRB1C–Cb5/Lyn–YFP–sFRB1N/CFP–FKBP. Time in mm:ss; scale bar, 10 μm.
Supplementary Video 4
Timelapse epifluorescence images of Cos-7 cells showing tri-organellar junction formation between ER, PM and mitochondria on rapamycin addition. Mitochondria in magenta, ER in yellow, PM in cyan. Constructs expressed: YFP–sFRB1N–Cb5/Tom20–mCh–FKBP/Lyn–CFP–sFRB1C. Time in mm:ss; scale bar, 10 μm.
Supplementary Video 5
Timelapse epifluorescence images of Cos-7 cells showing recruitment of INP54P (cyan) to ER–PM junctions resulting in reduced signal intensity of PH–PLCδ (gray). ER in magenta, PM in yellow. Constructs expressed: CFP–FKBP–INP54P(331)/iRFP–sFRB1C–Cb5/Lyn–Clover–sFRB1N/mRuby–PH–PLCδ. Time in mm:ss; scale bar, 10 μm.
Supplementary Video 6
Timelapse epifluorescence images of Cos-7 cells showing recruitment of INP54P D281A (cyan) to ER–PM junctions resulting in no change in signal intensity of PH–PLCδ (gray). ER in magenta, PM in yellow. Constructs expressed: CFP–FKBP–INP54P D281A/iRFP–sFRB1C–Cb5/Lyn–Clover–sFRB1N/mRuby–PH–PLCδ. Time in mm:ss; scale bar, 10 μm.
Supplementary Video 7
Timelapse epifluorescence images of Cos-7 cells showing recruitment of FKBP (cyan) to ER–PM junctions resulting in no change in signal intensity of PH–PLCδ (gray). ER in magenta, PM in yellow. Constructs expressed: CFP–FKBP/iRFP–sFRB1C–Cb5/Lyn–Clover–sFRB1N/mRuby–PH–PLCδ. Time in mm:ss; scale bar, 10 μm.
Source data
Source Data Fig. 1
Statistical Source Data
Source Data Fig. 2
Statistical Source Data
Source Data Fig. 3
Statistical Source Data
Source Data Fig. 4
Statistical Source Data
Source Data Fig. 5
Statistical Source Data
Source Data Fig. 6
Statistical Source Data
Source Data Extended Data Fig. 1
Statistical Source Data
Source Data Extended Data Fig. 2
Statistical Source Data
Source Data Extended Data Fig. 3
Statistical Source Data
Source Data Extended Data Fig. 4
Statistical Source Data
Source Data Extended Data Fig. 5
Statistical Source Data
Rights and permissions
About this article
Cite this article
Wu, H.D., Kikuchi, M., Dagliyan, O. et al. Rational design and implementation of a chemically inducible heterotrimerization system. Nat Methods 17, 928–936 (2020). https://doi.org/10.1038/s41592-020-0913-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1038/s41592-020-0913-x
This article is cited by
-
Integrated compact regulators of protein activity enable control of signaling pathways and genome-editing in vivo
Cell Discovery (2024)
-
A fluorogenic chemically induced dimerization technology for controlling, imaging and sensing protein proximity
Nature Methods (2023)
-
Small molecule-nanobody conjugate induced proximity controls intracellular processes and modulates endogenous unligandable targets
Nature Communications (2023)
-
A general method for chemogenetic control of peptide function
Nature Methods (2023)
-
Chemically inducible split protein regulators for mammalian cells
Nature Chemical Biology (2023)