Words similar to preproteins
Example sentences for: preproteins
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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 ] .
Secretory proteins, also called preproteins, are synthesized with a cleavable amino terminal signal sequence that functions both to slow folding of the preprotein and to aid in recognition of the secretory protein by export factors.