Collection of Manually Curated Inferences of Regulons in Prokaryotic Genomes
-- version 4.0 --

Collection of regulogs for L21_leader (RF00559) RNA regulatory element

The ribosomal L21 leader is a putative RNA regulatory element that was found upstream of the rplU-ysxB-rpmA genes encoding ribosomal protein L21, a protein of unknown function, and ribosomal protein L27 in Bacillus subtilis sand other Firmicutes. The expression of another ribosomal operon in B. subtilis, infC-rpmI-rplT, is autoregulated by a complex transcription attenuation mechanism involving the formation of alternative structures in the leader mRNA which depends upon the presence of ribosomal protein L20 [17289755]. Similar transcription attenuation mechanism that can be proposed for the L21 leader has not been yet experimentally validated.

Phylum Regulog RNA regulons (studied genomes) RNA sites
Cyanobacteria L21_leader - Cyanobacteria 1 (14) 1
Firmicutes L21_leader - Bacillales 11 (11) 11
Firmicutes L21_leader - Clostridiaceae 15 (20) 15
Firmicutes L21_leader - Lactobacillaceae 15 (15) 15
Firmicutes L21_leader - Staphylococcaceae 6 (7) 6
Firmicutes L21_leader - Streptococcaceae 15 (15) 15
Thermotogae L21_leader - Thermotogales 4 (11) 4