In the above-noted article, on p. 1027, column 2, the statement, “The analysis of trxr-1 SECIS elements using the SECISearch3 program (Mariotti et al. 2013) revealed the presence of the unusual type I SECIS element …,” should instead state, “The analysis of trxr-1 SECIS elements using the SECISearch3 program (Mariotti et al. 2013) revealed the presence of the type II SECIS element …”
The authors note that at the time that they had performed the analysis, the program's output provided a general-type I-like structure, instead of the actual SECIS-type structure. Thus, they have reanalyzed the Caenorhabditis SECIS elements in the updated and corrected version of SECISearch, marking the new box “predict SECIS-type.” Accordingly, the third sentence in the Figure 4 legend (p. 1028) should be replaced by: “All Caenorhabditis encode a type II SECIS element with a guanine immediately upstream of the non-Watson-Crick base-pairing quartet. Critical binding sites for SBP2 are highlighted.”
The authors thank Dr. Marco Mariotti (Centre de Regulació Genòmica, Universitat Pompeu Fabra, Barcelona, Spain), developer of the SECISearch3 program, for pointing out this error in Figure 4 of this paper.