Ribosomal protein L20 leader
L20 ribosomal protein leader is a ribosomal protein leader involved in the ribosome biogenesis. It is used as an autoregulatory mechanism to control the concentration of ribosomal proteins L20. The structure is located in the 5′ untranslated regions of mRNAs encoding initiation factor 3 followed by ribosomal proteins L35 and L20. A Rho-independent transcription terminator structure that is probably involved in regulation is included at the 3′ end.
This family is a putative ribosomal protein leader autoregulatory structure found in B. subtilis and other low-GC Gram-positive bacteria.
A second example were predicted in Deltaproteobacteria with bioinformatic approaches.
In this structure were similarities between the rRNA binding site of the L20 ribosomal protein and the L20 ribosomal protein leader binding site detected.
