Powering down the Pfam website
On October 5th, we began redirecting traffic from Pfam (pfam.xfam.org) to InterPro (www.ebi.ac.uk/interpro). The Pfam website will remain available at pfam-legacy.xfam.org until January 2023, when it will be decommissioned. You can read more about the sunset period in our blog post.

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0  structures 740  species 0  interactions 1267  sequences 3  architectures

Clan: YtcA (CL0703)


YtcA-like superfamily Add an annotation

This superfamily includes enterobacterial families characterised by short transmembrane proteins which contain two alpha-helices. The prototype sequence for this family is Swiss:A5A630.

This clan contains 2 families and the total number of domains in the clan is 1267. The clan was built by S Chuguransky.


This clan contains the following 2 member families:

DUF1656 Ytca

Domain organisation

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

Loading domain graphics...


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

Pfam family Num. domains Alignment
DUF1656 (PF07869) 1081 (85.3%) View
Ytca (PF17090) 186 (14.7%) View
Total: 2 Total: 1267 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...