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Cited by 163

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Degradation of transcription factors, c‐Jun and c‐Fos, by calpain

Open access
Hirai, Syu-ichi, Kawasaki, Hiroshi, Yaniv, Moshe, Suzuki, Koichi·1991·FEBS Letters

Abstract

c‐Jun protein, and AP1/PEA1 transcription factor component, is a typical short‐lived protein, and like other short‐lived proteins such as c‐Fos, contains PEST regions. Calcium‐dependent neutral protease (calpain), a candidate for the degradation of PEST‐containing proteins, digests c‐Jun and c‐Fos efficiently in vitro. This is the first demonstration that transcription factors are substrates for calpain. The C‐terminal portion of c‐Jun is relatively resistant to calpain such that an 18kDa fragment, which includes the DNA binding domain, accumulates under moderate digestion conditions. The activity of c‐Jun in cultured cells can be modified by changing the level of calpastatin, an endogenous calpain inhibitor, indicating that c‐Jun is also a substrate for calpain in vivo.

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Metadata

Authors
Hirai, S.-I., Kawasaki, H., Yaniv, M., & Suzuki, K.
Venue
FEBS Letters
Publisher
Wiley
Published
1991-08-05
Volume
287
Issue
1-2
Pages
57-61
ISSN
  • 0014-5793 (ISSN-L)
  • 1873-3468
OpenAlex
W2037696369
Cited by
163
References
1
FWCI
3.32
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Degradation of transcription factors, c‐Jun and c‐Fos, by calpain. https://app.cochat.ai/papers/10.1016/0014-5793(91)80015-u
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Hirai, S.-I., Kawasaki, H., Yaniv, M., & Suzuki, K. (1991). Degradation of transcription factors, c‐Jun and c‐Fos, by calpain. FEBS Letters. https://doi.org/10.1016/0014-5793(91)80015-u

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