Abstract
Conjugates between anti-tetanus F(ab')2 fragments and the (37-72) fragment of the HIV Tat protein were taken up by chromaffin cells, NG108-15 neurohybridoma cells and Rev-2-T-6 lymphoma cells. The uptake could not be inhibited by competition with (37-72)Tat, but was reduced in the presence of metabolic inhibitors or at low temperature. The disulfide as well as the thioether conjugate were translocated to the cytoplasmic space, but only the disulfide conjugate moderately restored the stimulated transmitter release inhibited by tetanus toxin. Therefore, disulfide conjugates are more promising than thioethers for the neutralization of intracellular antigens. These conjugates provide new tools to study neuroprotection against bacterial neurotoxins. Copyright (C) 1999 Federation of European Biochemical Societies.
Original language | English |
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Pages (from-to) | 383-386 |
Number of pages | 4 |
Journal | FEBS Letters |
Volume | 458 |
Issue number | 3 |
DOIs | |
State | Published - 24 Sep 1999 |
Externally published | Yes |
Bibliographical note
Funding Information:We would like to thank Mrs. Carola Kassebaum for valuable technical assistance. This work was supported in part by a grant from the Lower Saxony-Israel Research Fund to J.H., P.L., and H.W. Dr. Philip Lazarovici is affiliated with the David R. Bloom Center at the Hebrew University.
Funding
We would like to thank Mrs. Carola Kassebaum for valuable technical assistance. This work was supported in part by a grant from the Lower Saxony-Israel Research Fund to J.H., P.L., and H.W. Dr. Philip Lazarovici is affiliated with the David R. Bloom Center at the Hebrew University.
Funders | Funder number |
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Lower Saxony-Israel Research Fund | |
Hebrew University of Jerusalem |
Keywords
- Disulfide conjugate
- HIV-Tat
- Tetanus toxin
- Thioether conjugate