Sialic acid transporter (IPR004742)

Short name: SA_transporter

Overlapping homologous superfamilies


Family relationships


The sugar transporters belong to a family of membrane proteins responsible for the transport of various sugars in a wide range of prokaryotic and eukaryotic organisms [PMID: 3839598]. These integral membrane proteins are predicted to comprise twelve membrane spanning domains. It is likely that the transporters have evolved from an ancient protein present in living organisms before the divergence into prokaryotes and eukaryotes [PMID: 3543693]. In mammals, these proteins are expressed in a number of organs [PMID: 3170580]. Proteins transporting sugars and other substrates are related in this broader family.

Sialic acid transporters belong to this group.

GO terms

Biological Process

GO:0015739 sialic acid transport

Molecular Function

GO:0015136 sialic acid transmembrane transporter activity

Cellular Component

GO:0016021 integral component of membrane

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.