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15  structures 112  species 3  interactions 8101  sequences 113  architectures

Clan: DNA_b-psBarrel (CL0405)


DNA-binding pseudo-barrel domain Add an annotation

Superfamily consists of type II restriction endonuclease effector (N-term) domain and plant B3 DNA binding domain families.

This clan contains 3 families and the total number of domains in the clan is 8101. The clan was built by RD Finn.


This clan contains the following 3 member families:

B3 DUF313 EcoRII-N

External database links

Domain organisation

Below is a listing of the unique domain organisations or architectures from this clan. More...

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The table below shows the number of occurrences of each domain throughout the sequence database. More...

Pfam family Num. domains Alignment
B3 (PF02362) 7718 (95.3%) View
DUF313 (PF03754) 334 (4.1%) View
EcoRII-N (PF09217) 49 (0.6%) View
Total: 3 Total: 8101 Clan alignment

Please note: Clan alignments can be very large and can cause problems for some browsers. Read the note above before viewing.

Family relationships

This diagram shows the relationships between members of this clan. More...

Species distribution

Tree controls


This tree shows the occurrence of the domains in this clan across different species. More...



There are 3 interactions for this clan. More...

Interacting families


For those sequences which have a structure in the Protein DataBank, we use the mapping between UniProt, PDB and Pfam coordinate systems from the MSD group, to allow us to map Pfam domains onto UniProt three-dimensional structures. The table below shows the mapping between the Pfam families in this clan, the corresponding UniProt entries, and the region of the three-dimensional structures that are available for that sequence.

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