The following proteins have been shown  to share regions of similarities:
Escherichia coli hypothetical protein yigU and HI0188, the corresponding
Haemophilus influenzae protein.
Bacillus subtilis hypothetical protein ycbT.
Mycobacterium tuberculosis hypothetical protein MtCY49.33c and U2126A, the
corresponding Mycobacterium leprae protein.
Synechocystis strain PCC 6803 hypothetical protein sll0194.
Odontella sinensis and Porphyra purpurea chlroplast hypothetical protein
These proteins have from 245 to 317 amino acids and seem to contain at least
six or seven transmembrane regions. As a signature pattern, we selected a
conserved region located in the central section of these proteins.
PROSITE method (with tools and information) covered by this documentation:
Bairoch A. Rudd K.E.
Unpublished observations (1996).
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