Example sentences for: secy

How can you use “secy” in a sentence? Here are some example sentences to help you improve your vocabulary:

  • Plasmids pKL106 and pKL107 encoding LA57-N 102LT-FLAG or N 102LT-FLAG, respectively, were transformed into strains IM104 (wild type secY ) or IM105 ( prlA4 ). These strains contained deletion mutations in the lon and degP genes to limit proteolysis in both the cytoplasmic and periplasmic spaces.

  • According to the proofreading model, in a wild type strain, SecE and SecY would reject the unfolded protein due to lack of a signal sequence.

  • The PrlA (SecY) and PrlG (SecE) suppressors are compromised in their ability to proofread, allowing export of proteins with mutations, or even complete deletions, of the signal sequence.

  • In a wild type cell, the mutant precursor would be rejected at this point by SecY/E, but in a PrlA or PrlG suppressor strain, rejection would not occur and the mutant secretory protein would be exported.

  • The signal sequence is crucial for efficient translocation; mutations in the signal sequence significantly reduce export of the preprotein and complete deletions of the signal sequence eliminate essentially all export [ 5 6 7 8 ] . Selection for extragenic suppressors of such export defective preproteins led to the identification of the prl alleles of secY ( prlA ), secE ( prlG ), secA ( prlD ), and more recently secG ( prlH ) [ 6 9 10 11 ] . Early hypotheses predicted that the Prl suppressors function by expanded or altered interactions with signal sequences, facilitating recognition of mutant as well as wild type signal sequences [ 6 ] .


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