Tobias W Giessen
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About
The Giessen Lab is interested in the structure, function, and engineering of protein organelles, protein machines, and enzyme filaments. Our current focus lies on microbial protein organelles, compartments, and filaments involved in detoxification, nutrient utilization, and natural product biosynthesis, as well as on the discovery and characterization of novel enzyme machines and assemblies involved in the biosynthesis of bioactive compounds. We endeavor to leverage our molecular level insights into large protein assemblies for synthetic biology applications in drug delivery, biocatalysis, and bionanotechnology. Our interdisciplinary work utilizes techniques and approaches spanning the fields of biochemistry, structural biology (cryo-EM and x-ray crystallography), microbiology and synthetic biology.
Links
Giessen Lab Website Tobias W. Giessen - Google Scholar
Qualifications
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Postdoctoral Research FellowHarvard Medical School | Wyss Institute for Biologically Inspired Engineering at Harvard, Systems Biology, Boston, United States
2014 - 2018
Postdoctoral Research
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Postdoctoral Research FellowLoewe Center for Synthetic Microbiology, Marburg, Germany
2013 - 2014
Postdoctoral Research
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PhD in BiochemistryPhilipps-University Marburg, Marburg, Germany
2010 - 2013
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Diplom (BS/MS) in ChemistryPhilipps-University Marburg, Marburg, Germany
2005 - 2010
Recent Publications
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Andreas MP, Giessen TW. Biochemistry, 2026 Jun 9; 65 (2): 137 - 148.Journal ArticleEncapsulins in Terpene Biosynthesis: Enzyme Nanoreactors in Bacterial Secondary Metabolism
DOI:10.1021/acs.biochem.5c00719 PMID: 41481934 -
Kwon S, Andreas MP, Jones JA, Giessen TW. 2026 Apr 11; openRxiv,PreprintA permeable protein nanocage enables facile cargo loading and cytosolic protein delivery
DOI:10.64898/2026.04.06.716810 -
Siddiquee R, Lie F, Szyszka TN, Loustau A, Andreas MP, Giessen TW, Lau YH. 2026 Jan 12;PreprintDirected evolution of multimeric proteins is enabled by dual-compensatory gene duplication.
DOI:10.64898/2026.01.12.698938 PMID: 41648261 -
Hoang Y, Jadhav PV, Trettel DS, Dow RE, Kwon S, Matej K, Byrne JA, Azaldegui CA, Giessen TW, Pi H, Mosalaganti S, Vecchiarelli AG. 2025 Sep 22;PreprintEngineering Spatial Control of Bacterial Organelles.
DOI:10.1101/2025.09.22.677801 PMID: 41040230 -
Kwon S, Giessen TW. Materials Advances, 2025 Sep 15; 6 (18): 6209 - 6220.Journal ArticleEngineering encapsulin nanocages for drug delivery
DOI:10.1039/d5ma00386e -
Dutcher CA, Andreas MP, Giessen TW. Advanced Science, 2025 Aug 28; 12 (32):Journal ArticleA Two-Component Pseudo-Icosahedral Protein Nanocompartment with Variable Shell Composition and Irregular Tiling
DOI:10.1002/advs.202503617 PMID: 40557621 -
Fazal A, Giessen TW. Current Opinion in Microbiology, 2025 Aug 1; 86:Journal ArticleEncapsulins: catalysis inside a shell
DOI:10.1016/j.mib.2025.102629 PMID: 40618468 -
Ubilla-Rodriguez NC, Andreas MP, Giessen TW. Advanced Science, 2025 Jun 5; 12 (21):Journal ArticleStructural and Biochemical Characterization of a Widespread Enterobacterial Peroxidase Encapsulin
DOI:10.1002/advs.202415827 PMID: 40167211
Featured News & Stories
Congratulations to Natalia Ubilla-Rodriguez, PhD
Five Biological Chemistry faculty members receive promotions in 2025
Congratulations to Cassandra Dutcher, PhD
The Giessen lab publishes two new papers and receives research awards from the National Science Foundation