doi: 10.1016/0014-5793(89)81376-6.
Activation of interleukin-1 beta by a co-induced protease
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- PMID: 2653864
- DOI: 10.1016/0014-5793(89)81376-6
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Activation of interleukin-1 beta by a co-induced protease
FEBS Lett.
.
Free article
Abstract
The proteolytic generation of mature interleukin-1 beta (IL-1 beta) from its inactive precursor does not proceed by a conventional pathway for hormonal processing. Pro-IL-1 beta is found dispersed in the cytoplasm, and there are no basic amino acid residues or other commonly recognized processing sites adjoining the mature N-terminus. Processing appears to occur during release of the hormone. In the present study, we have identified a specific protease that generates mature IL-1 beta from the precursor. This enzyme is co-induced with the hormone, and it differs in its cleavage specificity and inhibitor sensitivity from all known proteases.
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