TCDB is operated by the Saier Lab Bioinformatics Group

9.B.440.  The Large 14 - 16 TMS Putative Transporter (LPT) Family 

The LPT family consists of large proteins of either ~6 - 8 or ~12 - 16 TMSs.  These usually occur in clusters of three or four TMSs, but there seems to be substantial variation among members.  The smaller proteins seem to be half sized compared to the larger members of the family.  Other variations may also occur. (See family members of estimated cluster sizes). Parts of these proteins may show sequence similarity with members of family 9.B.422 (The TMEM26 Family).