PROSITE documentation PDOC00931
Uncharacterized protein family UPF0001 signature


The following uncharacterized proteins have been shown [1] to share regions of similarities:

  • Yeast chromosome II hypothetical protein YBL036c.
  • Caenorhabditis elegans hypothetical protein F09E5.8.
  • Bacillus subtilis hypothetical protein ylmE.
  • Escherichia coli hypothetical protein yggS and HI0090, the corresponding Haemophilus influenzae protein.
  • Helicobacter pylori hypothetical protein HP0395.
  • Mycobacterium tuberculosis hypothetical protein MtCY270.20.
  • Synechocystis strain PCC 6803 hypothetical protein slr0556.
  • A Pseudomonas aeruginosa hypothetical protein in pilT 5'region.
  • A Vibrio alginolyticus hypothetical protein in pilT 5'region.

These are proteins of from 25 to 30 Kd which contain a number of conserved regions. As a signature pattern, we selected the best conserved region which is located in the first third of these proteins.

Last update:

December 2004 / Pattern and text revised.


Technical section

PROSITE method (with tools and information) covered by this documentation:

UPF0001, PS01211; Uncharacterized protein family UPF0001 signature  (PATTERN)


1AuthorsBairoch A. Rudd K.E.
SourceUnpublished observations (1996).

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