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Transmembrane segment proteases

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Summary

Transmembrane segment proteases comprise a novel class of proteases that cleave substrates within hydrophobic membrane-spanning segments. They cleave in parts of proteins that upon first glance should be protected by the hydrophobic environment of the lipid bilayer. At present, no such protease has been isolated and biochemically characterized. They are defined according to the appearance of the respective cleavage products. All trans-membrane segment proteases seem to participate in a regulated two-step proteolytic process that plays a central role in cellular regulation or is part of a protein degradation pathway.

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Abbreviations

β-APP:

β-amyloid precursor protein

S1P:

site-1 protease

S2P:

site-2 protease

SPase:

signal peptidase

SPPase:

signal peptide peptidase

SREBP:

sterol regulatory element-binding protein

SCAP SREBP:

cleavage-activating protein

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Martoglio, B. Transmembrane segment proteases. Protoplasma 207, 141–146 (1999). https://doi.org/10.1007/BF01282993

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  • DOI: https://doi.org/10.1007/BF01282993

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