Part:BBa_K4883005
RIB1-ERBV-1-RIB7
This is a riboflavin synthase RIB1, connected with an ERBV-1 2A self-cleaving peptide, followed by another riboflavin synthase RIB7.
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12INCOMPATIBLE WITH RFC[12]Illegal NheI site found at 1335
- 21INCOMPATIBLE WITH RFC[21]Illegal BamHI site found at 428
- 23COMPATIBLE WITH RFC[23]
- 25INCOMPATIBLE WITH RFC[25]Illegal AgeI site found at 448
- 1000INCOMPATIBLE WITH RFC[1000]Illegal BsaI.rc site found at 1267
Usage and Biology
RIB1 (BBa_K4883001) and RIB7 (BBa_K4883002) catalyze the first and second steps of the riboflavin (vitamin B2) biosynthesis pathway in Saccharomyces cerevisiae. Co-overexpression of RIB1 and RIB7 could lead to overproduction of vitamin B2 in S. cerevisiae.
For the two genes to be expressed separately and normally, the genes are divided by a 2A self-cleaving peptide, ERBV-1, which cleaves a longer peptide into two shorter peptides. ERBV-1 has been proven to have the highest cleavage efficiency in S. cerevisiae (Souza-Moreira et al., 2018).
References
Souza-Moreira TM, Navarrete C, Chen X, Zanelli CF, Valentini SR, Furlan M, Nielsen J, Krivoruchko A. Screening of 2A peptides for polycistronic gene expression in yeast. FEMS Yeast Res. 2018 Aug 1;18(5). doi: 10.1093/femsyr/foy036. PMID: 29617770.
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