Summary
Barnase-EndoU-ColicinE5/D-RelE like nuclease
This clan includes RNase of the barnase/EndoU/colicin E5/D-RelE (BECR)-like fold. The BECR fold of metal-independent endoRNases are commonly observed and extensively diversified effectors across diverse prokaryotic conflict systems such as polymorphic toxin systems, plasmid-encoded bacteriocins, and TA systems. Although BECR fold proteins are often extensively elaborated with inserts or show structural modifications, they share a conserved core of an N-terminal helix followed by four or five strands. In addition to their presence in polyvalent proteins, solo versions of these BECR domains are also found in phages; we accordingly designate this clade the phage-BECR (PBECR) domains [1].
This clan contains 7 families and the total number of domains in the clan is 880. The clan was built by S El-Gebali.
Literature references
- Iyer LM, Burroughs AM, Anand S, de Souza RF, Aravind L;, J Bacteriol. 2017; [Epub ahead of print]: Polyvalent Proteins, a Pervasive Theme in the Intergenomic Biological Conflicts of Bacteriophages and Conjugative Elements. PUBMED:28559295 EPMC:28559295
Members
This clan contains the following 7 member families:
DUF3519 MuF_C PBECR1 PBECR2 PBECR3 PBECR4 PBECR5Domain organisation
Below is a listing of the unique domain organisations or architectures from this clan. More...
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Alignments
The table below shows the number of occurrences of each domain throughout the sequence database. More...
Pfam family | Num. domains | Alignment |
---|---|---|
PBECR3 (PF18812) | 207 (23.5%) | View |
PBECR2 (PF18810) | 202 (23.0%) | View |
PBECR4 (PF18813) | 186 (21.1%) | View |
MuF_C (PF18819) | 154 (17.5%) | View |
PBECR1 (PF18809) | 103 (11.7%) | View |
PBECR5 (PF18814) | 14 (1.6%) | View |
DUF3519 (PF12033) | 14 (1.6%) | View |
Total: 7 | Total: 880 | Clan alignment |
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Family relationships
This diagram shows the relationships between members of this clan. More...
Species distribution
Tree controls
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