Abstract:
:In this work we have investigated the role of specific peptide sequences for glucose-inactivation of the yeast isocitrate lyase. Thus, different fragments of the ICL1 coding region were fused to the lacZ gene of E. coli to provide a reporter construction. Determinations of beta-galactosidase activities indicated that the decapeptide sequence KTKRNYSARD, located between amino acid residues 37 and 46 of isocitrate lyase, is important for glucose induced proteolytic inactivation. Further experimental evidence was provided by insertion of this sequence into a glucokinase-beta-galactosidase fusion protein, which is not sensitive to glucose regulation. The decapeptide inserted conferred glucose inactivation to this construct, confirming that it is both necessary and sufficient as a signal.
journal_name
FEBS Lettjournal_title
FEBS lettersauthors
Ordiz I,Herrero P,Rodicio R,Moreno Fdoi
10.1016/0014-5793(95)00538-ksubject
Has Abstractpub_date
1995-07-03 00:00:00pages
219-22issue
3eissn
0014-5793issn
1873-3468pii
0014-5793(95)00538-Kjournal_volume
367pub_type
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