Sriram Krishnaswamy

faculty photo
Professor of Pediatrics
Department: Pediatrics

Contact information
Joseph Stokes Research Institute / CHOP
310 Abramson
3516 Civic Center Blvd.
Philadelphia, PA 19104
Office: (215) 590-3346
Fax: (215) 590-2320
BS (Biology)
Syracuse University, 1979.
Ph.D. (Biochemistry)
Syracuse University, 1984.
Permanent link

Description of Itmat Expertise

Enzymology, protein chemistry and physical biochemistry of blood coagulation. With relevance to the mission of ITMAT, we frequently work on novel inhibitors of coagulation that exploit the complexity of macromolecular interactions to achieve specificity for the coagulation enzymes.

Selected Publications

Krishnaswamy, S.: Exosite-Driven Substrate Specificity and Function in Coagulation. J. Thromb. Haemost. 3: 54-67, 2005.

Lu, G., Chhum, S. and Krishnaswamy, S.: The affinity of protein C for the thrombin-thrombomodulin complex is determined in a primary way by active site-dependent interactions. J. Biol. Chem. 280: 15471-15478, 2005.

Bianchini, E.P., Orcutt, S.J., Panizzi, P., Bock, P.E. and Krishnaswamy, S.: Ratcheting of the Substrate from the Zymogen to Proteinase Conformations Directs Sequential Cleavage of Prothrombin by Prothrombinase. Proc. Natl. Acad. Sci. U.S.A. 102: 10099-10104, 2005.

Cao, W., Krishnaswamy, S., Camire, R.M., Lenting, P.J. and Zheng, X.L.: Factor VIII accelerates proteolytic cleavage of von Willebrand factor by ADAMTS13. Proc. Natl. Acad. Sci. U.S.A. 105: 7416-7421, 2008.

Hacisalihoglu, A., Panizzi, P., Bock, P.E., Camire, R.M. and Krishnaswamy, S.: Restricted Active Site Docking by Enzyme-Bound Substrate Enforces the Ordered Cleavage of Prothrombin by Prothrombinase. J. Biol. Chem. 282: 32974 – 32982, 2007.

Kamath, P. and Krishnaswamy, S.: Fate of Membrane-Bound Reactants and Products during the Activation of Human Prothrombin by Prothrombinase. J. Biol. Chem. 283: 30164-30173, 2008.

Bradford, H.N., Miccuci, J.A. and Krishnaswamy, S.: Regulated Cleavage of Prothrombin by Prothrombinase. Repositioning a cleavage site reveals the unique kinetic behavior of the action of prothrombinase on its compound substrate. J. Biol. Chem. 285: 328-338, 2010.

Buddai, S.K., Lu, G., Layzer, J., Rusconi, C.P., Sullenger, B.A., Monroe, D. and Krishnaswamy, S.: An anticoagulant RNA aptamer that inhibits proteinase-cofactor interactions within prothrombinase. J. Biol. Chem. 285: 5212-5223, 2010.

Kamath, P., Huntington, J.A. and Krishnaswamy, S.: Ligand binding shuttles thrombin along a continuum of zymogen-like and proteinase-like states. J. Biol. Chem. 285: 28651-28658, 2010.

Kroh, H.K., Panizzi, P., Tchaikovski, S., Wei, N., Krishnaswamy, S. , Tans, G., Rosing, J., Furie, B., Furie, B.C. and Bock, P.E.: Active site-labeled prothrombin inhibits prothrombinase in vitro and thrombosis in vivo. J. Biol. Chem. 286: 23345-23356, 2011.

Bradford, H.N. and Krishnaswamy, S.: Meizothrombin is an Unexpectedly Zymogen-Like Variant of Thrombin. J. Biol.Chem. 287: 30914-30925, 2012.

Vadivel, K., Agah, S., Messer, A.S., Cascio, D., Bajaj, M.S., Krishnaswamy, S., Esmon, C.T., Padmanabhan, K. and Bajaj, S.P.: Structural and Functional Studies of -Carboxyglutamic Acid Domains of Factor VIIa and Activated Protein C: Role of Magnesium at Physiological Calcium. J. Mol. Biol. 425: 1961-1981, 2013.

Krishnaswamy, S.: The Transition of Prothrombin to Thrombin. J. Thromb. Hemostas. 11: 265-276, 2013.

Bradford, H.N., Orcutt, S.J. and Krishnaswamy, S.: Membrane Binding by Prothrombin Mediates its Constrained Presentation to Prothrombinase For Cleavage. J. Biol.Chem. in press, 2013.

back to top
Last updated: 07/10/2018
The Trustees of the University of Pennsylvania