Sequence requirements for splicing by the Cne PRP8 intein.

Abstract:

:The dependence of protein splicing on conserved residues of the Cne PRP8 intein was assessed by alanine scanning mutagenesis in a foreign protein context. Corroboration was obtained for the involvement of residues at the splice junctions and of the conserved threonine and histidine of motif B. Five additional residues were identified as absolutely required for splicing. Variant W151A displayed premature C-terminal cleavage, not seen with other Cne PRP8 mutants. We propose a model whereby W151 acts to prevent premature C-terminal cleavage, favoring complete splicing as opposed to two disjointed cleavage events.

journal_name

FEBS Lett

journal_title

FEBS letters

authors

Pearl EJ,Tyndall JD,Poulter RT,Wilbanks SM

doi

10.1016/j.febslet.2007.05.060

subject

Has Abstract

pub_date

2007-06-26 00:00:00

pages

3000-4

issue

16

eissn

0014-5793

issn

1873-3468

pii

S0014-5793(07)00596-0

journal_volume

581

pub_type

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