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4  structures 20  species 2  interactions 41  sequences 3  architectures

Clan: EspA_CesA (CL0628)


EspA/CesA-like superfamily Add an annotation

This superfamily includes the two components of the heterodimeric CesA/EspA complex which form a coiled-coil interacting structure [1].

This clan contains 2 families and the total number of domains in the clan is 41. The clan was built by A Bateman.

Literature references

  1. Yip CK, Finlay BB, Strynadka NC;, Nat Struct Mol Biol. 2005;12:75-81.: Structural characterization of a type III secretion system filament protein in complex with its chaperone. PUBMED:15619638 EPMC:15619638


This clan contains the following 2 member families:

EspA T3SchapCesA

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
EspA (PF03433) 40 (97.6%) View
T3SchapCesA (PF11439) 1 (2.4%) View
Total: 2 Total: 41 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 2 interactions for this clan. More...

Interacting families
EspA T3SchapCesA
T3SchapCesA T3SchapCesA


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...