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Alignment of the conserved RRM and zinc finger portions of the CPEB homologs. Identical residues are black; similar residues are gray. Brackets indicate the RNP-2 and RNP-1 submotifs of the RRM domains and the conserved C4 and C2H2 zinc fingers. Asterisks mark the diagnostic cysteine and histidine residues. The red arrow indicates the threonine to isoleucine change in the fog-1(q253ts) allele.
