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FEBS Lett. 1994 Jul 11;348(2):109-13.

KEKE motifs. Proposed roles in protein-protein association and presentation of peptides by MHC class I receptors.

Author information

1
Department of Biochemistry, University of Utah, Salt Lake City 84132.

Abstract

A stretch of 28 'alternating' lysine (K) and glutamate (E) residues is found in an activator of the multicatalytic protease. Such 'KEKE sequences' are also present in subunits of the multicatalytic protease, in subunits of the 26S protease and in a variety of chaperonins. We propose that KEKE regions promote association between protein complexes. Furthermore, they may contribute to the selection of peptides presented on MHC Class I receptors.

PMID:
8034024
DOI:
10.1016/0014-5793(94)00569-9
[Indexed for MEDLINE]
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