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Carol J. Deutsch, Ph.D.

Carol J. Deutsch, Ph.D.

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Professor of Physiology
Department: Physiology
Graduate Group Affiliations

Contact information
650A Clinical Research Building
415 Curie Boulevard
Philadelphia, PA 19104-6085
Office: (215) 898-8014
Fax: (215) 573-2273
B.A. (Chemistry)
Brandeis University, Waltham, MA, 1966.
M. Phil (Organic Chem.)
Yale University, New Haven, CT, 1969.
Ph.D. (Phys. Chem.)
Yale University, New Haven, CT, 1972.
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Description of Research Expertise

Research Interests
Function and assembly of voltage-gated potassium channels.

Key words: voltage-gated K+ channels, C-type inactivation, gating kinetics, protein-protein interactions, oligomerization, channel assembly, biogenesis, ion channels, human T-lymphocytes.

Description of Research
The research of this laboratory has focused on the physiology and biophysics of a voltage-gated potassium (Kv) channel found in human T cells, Kv1.3. Thus far, we have shown that Kv1.3 plays at least two functional roles. First, it contributes to resting T-cell membrane potential, and second, it mediates volume regulation. Both of these functions are critical in mitogen-stimulated T-cell proliferation. Therefore, it is important to understand what is responsible for the potassium channel conductance in a T lymphocyte. There are two determinants: the biophysical properties of the channel and the ability of the channel to form and be expressed on the cell surface. In the first case, we study the mechanisms of activation, inactivation, and recovery of this channel. In the second case, we study the stepwise process by which Kv1.3 acquires its secondary, tertiary, and quaternary structure. These studies involve a combined use of several diverse techniques including electrophysiological techniques, in vitro translation and transcription methods and protein assays, as well as standard cloning and molecular biological methods.

Lab personnel:
Andrey Kosolapov, Ph.D., Senior Research Investigator
Jianli Lu, Ph.D., Research Specialist
LiWei Tu, M.D., Senior Research Investigator
Pengse Po, Research Specialist

Selected Publications

Deutsch, C.: The Birth of a Channel. Neuron 2003 Notes: Currently in press.

Kosolapov, A. and Deutsch, C.: Folding of the Voltage-gated K+ Channel T1 Recognition Domain. J. Biol. Chem. 278: 4305-13, 2003.

Deutsch, C.: Potassium channel ontology. Ann. Rev Physiol. 64: 19-46, 2002.

Deutsch, C.: Potassium channel ontogeny. Ann. Rev. Physiol. 64: 19-46, 2002.

Lu, J., Robinson, J.M., Edwards, D. and Deutsch, C: T1-T1 Interactions occur in the Endoplasmic Reticulum while nascent Kv peptides are still attached to ribosomes. Biochem. 40: 10934-10946, 2001.

Lu, J. and Deutsch, C.: Pegylation: A method for assessing topological accessibilities in Kv1.3. Biochem. 40(44): 13288-301, Nov 2001.

Tu L., Wang J., Helm A., Skach WR., Deutsch C.: Transmembrane biogenesis of Kv1.3. Biochemistry 39(4): 824-36, Feb 1 2000.

Tu L., Deutsch C.: Evidence for dimerization of dimers in K+ channel assembly. Biophysical Journal 76(4): 2004-17, Apr 1999.

Sheng Z., Deutsch C.: Assembly of ion channels. Methods in Enzymology 293: 17-32, 1998.

Deutsch, C: The courtship and marriage of K+ channel subunits. in Biol. Skr. Dan. Vid. Selsk. 49: 107-113, 1998 Notes: (Proceedings of The Royal Danish Academy).

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Last updated: 07/13/2021
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