TCDB is operated by the Saier Lab Bioinformatics Group
9.B: Putative transport proteins
Putative uncharacterized transport proteins. Putative transport protein families are grouped in this subclass and will either be classified elsewhere when the transport function of a member becomes established, or will be eliminated from the TC classification system if the proposed transport function is disproven. These families include a member or members for which a transport function has been suggested, but evidence for such a function is not yet compelling.