Serpin Structure/Function

Susan C. Bock, Ph.D.

Susan.Bock@m.cc.utah.edu

also see

http://biologicalchem.med.utah.edu/bock/bock.html

Heparin binding site of the anticoagulant protein, antithrombin III. Ersdal-Badju et al., J. Biol. Chem. 272: 19393-19400 (1997).

My lab studies the anticoagulant protein antithrombin III (ATIII). Primary goals of our work are to understand the structural basis of ATIII heparin cofactor activity and the physiological expression of ATIII anticoagulant activity on and in the vessel wall. We are also employing our knowledge of antithrombin III and serpin structure/function relationships to design and develop clinically useful, neutrophil-resistant serpins for use in sepsis and other inflammatory pathologies.

Recent Publicatons

Turk, B., Brieditis, I., Bock, S.C., Olson, S.T., and Bjork, I.  1997.
The oligosaccharide Side Chain on Asn-135 of alpha-Antithrombin, Absent in
beta-Antithrombin, Decreases the Heparin Affinity of the Inhibitor by
Affecting the Heparin-Induced Conformational Change.  Biochemistry, 36:
6682-6691

Ersdal-Badju, E., Lu, A., Zuo, Y., Picard, V. and Bock, S.C.  1997.
Identification of the Antithrombin III Heparin Binding Site.  J. Biol.
Chem.,  272: 19393-19400

Picard, V., and Bock, S.C.  1996.  Rapid and efficient one-tube PCR-based
mutagenesis method.  In  Methods in Molecular Biology: PCR Protocols
B.A. White, ed.  Humana Press, Totowa, NJ. pp.183-186

Ersdal-Badju, E., Lu, A., Peng, X., Picard, V., Zendehrouh, P., Turk, B.,
Bjrk, I., Olson, S.T., and Bock, S.C.  1995.  Elimination of glycosylation
heterogeneity affecting heparin affinity of recombinant human antithrombin
III by expression of a beta-like variant in baculovirus-infected insect
cells.  Biochem. J., 310: 323-330

Picard, V., Ersdal-Badju, E., and Bock, S.C.  1995.  Partial glycosylation
of antithrombin III asparagine-135 is caused by  the serine in the third
position of its N-glycosylation consensus sequence and responsible for the
production of the beta-ATIII isoform with enhanced heparin affinity.
Biochemistry,  34: 8433-8440