Anomalous behavior of human leukocyte interferon subtypes on polyacrylamide gel electrophoresis in the presence of dodecyl sulfate
Open Access
- 19 January 1987
- journal article
- Published by Wiley in FEBS Letters
- Vol. 211 (1) , 78-82
- https://doi.org/10.1016/0014-5793(87)81278-4
Abstract
35S‐labeled human leukocyte interferon (IFN) subtypes produced in a cell‐free system derived from Escherichia coli were analyzed by polyacrylamide gel electrophoresis in the presence of SDS (SDS‐PAGE). Some IFN subtypes anomalously showed lower electrophoretic mobilities than those expected from their formula molecular masses. The results with hybrid IFNs and esterification suggest that this anomaly of IFN subtypes on SDS‐PAGE is due to the introduction of one or two negative charges in the middle of the molecule.Keywords
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