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Clan: L31_rleader (CL00118)


Ribosomal Protein L31 Leader clan

The L31 r-leaders are five motifs that likely bind the L31 r-protein, they are used as an autoregulatory mechanism to control the concentration of the ribosomal protein L31 [1]

This clan contains 5 families and the total number of sequence regions in the clan is 980.

Literature references

  1. Eckert I, Weinberg Z, BMC Microbiol. 2020;20:130.: Discovery of 20 novel ribosomal leader candidates in bacteria and archaea. 32448158


This clan contains the following 5 member families:

L31-Coriobacteria L31-Corynebacteriaceae L31-Firmicutes L31-Gammaproteobacteria L31-Actinobacteria

Secondary structures

This tool allows you to view the secondary structure images of two clan members side-by-side. Choose the family structures using the two drop-down menus below.


The table below shows the number of occurrences of each family throughout the sequence database. In brackets beside each number is the percentage of the total number of sequence hits for the clan that are represented by this family. The rightmost column provides a link to the alignments tab for each family.

Rfam family Num. regions Alignment
L31-Actinobacteria (RF03158) 488 (49.8%) View
L31-Gammaproteobacteria (RF03157) 319 (32.6%) View
L31-Firmicutes (RF03156) 65 (6.6%) View
L31-Corynebacteriaceae (RF03129) 55 (5.6%) View
L31-Coriobacteria (RF03128) 53 (5.4%) View