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Anthony Kossiakoff

Professor, Biochemistry & Molecular Biophysics, Institute for Biophysical Dynamics


B.S. (Chemistry and Mathematics) 1968, Davis and Elkins College

Ph.D. (Physical Chemistry) 1972,University of Delaware, Newark

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Lab Members
Recombinant Antibody Network
Chaperone-Enabled Biology and Structure

Contact Information:


929 East 57th Street
Chicago, IL 60637
CIS W210
Phone: (773) 702-9257
Fax: (773) 702-0439

929 East 57th Street
Chicago, IL 60637
CIS W225
Phone: (773) 834-2776

Anthony A Kossiakoff

Research Summary / Selected Publications

1) One of our research interests centers around studying at atomic resolution the structural and functional properties that define molecular recognition systems that activate and regulate biological properties. In particular, we study the energetics of hormone-induced receptor activation and regulation of growth hormone and its receptor using X-ray crystallography, site-directed mutagenesis, phage display mutagenesis and biophysical analysis. 2) Synthetic Antibodies- We use novel phage display libraries and screening procedures to produce a new class of synthetic affinity binders (sABs) based on Fab antibody scaffolds. These synthetic antibodies are much more versatile than traditional monoclonal antibodies and can be tuned to bind to multi-protein complexes and specific conformational states of their protein targets. These attributes make them the reagents of choice to study complex processes like cell signaling and cytokinesis. 3) Drug delivery- We have developed a unique drug delivery method that utilizes ligand-induced receptor-mediated endocytosis pathways. We call this method Receptor-Mediated Delivery (RMD) and have shown that we can deliver functionally active proteins and RNA/DNA cargoes into live cells for functional and...


Shukla AK, et al. Structure of active beta-arrestin-1 bound to a G-protein-coupled receptor phosphopeptide. Nature (2013) 497(7447): 137-41. 

Paduch M, Koide A, Uysal S, Rizk S, Koide S, Kossiakoff AA. Generating conformational-specific synthetic antibodies to trap proteins in selected conformational states. Methods (2013) 60(1): 3-14. 

Uysal S, Cuello LG, Cortes DM, Koide S, Kossiakoff AA, Perozo E, Mechanism of activation gating in the full-length KcsA K+ channel. Proc Natl Acad Sci USA (2011) 108(29), 11896-9. 

Rizk RR, Misiura A, Paduch M, Kossiakoff AA. Substance P derivatives as versatile tools for specific delivery of various types of biomedical cargo. Bioconjugate (2012) 23(1), 42-6. 

Rizk SS, Luchniak A, Uysal S, Brawley CM, Rock RS, Kossiakoff AA "An engineered substance P variant for receptor-mediated delivery of synthetic antibodies into tumor cells". Proc Natl Acad Sci USA (2009) 106(27):11011-5.