PROSITE documentation PDOC01010
Uncharacterized protein family UPF0054 signature


The following uncharacterized proteins have been shown [1] to be evolutionary related:

  • Bacillus subtilis hypothetical protein yqfG.
  • Escherichia coli hypothetical protein ybeY and HI0004, the corresponding Haemophilus influenzae protein.
  • Synechocystis strain PCC 6803 hypothetical protein slr0053.
  • Mycobacterium tuberculosis hypothetical protein Rv2367c and ML0628, the corresponding Mycobacterium leprae protein.
  • Rickettsia prowazekii hypothetical protein RP471.
  • Human protein C21orf57.

These are small proteins of 17 to 21 Kd which contains in the their C-terminal half a conserved region with three histidines.

Last update:

December 2004 / Pattern and text revised.


Technical section

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

UPF0054, PS01306; Uncharacterized protein family UPF0054 signature  (PATTERN)


1AuthorsBairoch A.
SourceUnpublished observations (1998).

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