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37  structures 55  species 0  interactions 401  sequences 32  architectures

Clan: Triple_B_spiral (CL0674)


Triple beta spiral Add an annotation

This superfamily includes repeats that adopt a triple beta spiral structure [1]. These repeats are found in viral proteins. In adenoviruses they are found in the trimeric fibres responsible for receptor attachment.

This clan contains 2 families and the total number of domains in the clan is 401. The clan was built by A Bateman.

Literature references

  1. van Raaij MJ, Mitraki A, Lavigne G, Cusack S; , Nature 1999;401:935-938.: A triple beta-spiral in the adenovirus fibre shaft reveals a new structural motif for a fibrous protein. PUBMED:10553913 EPMC:10553913


This clan contains the following 2 member families:

Adeno_shaft Av_adeno_fibre

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
Adeno_shaft (PF00608) 310 (77.3%) View
Av_adeno_fibre (PF06536) 91 (22.7%) View
Total: 2 Total: 401 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...



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.

Loading structure mapping...