The solute carrier families have a remarkably long evolutionary history with the majority of the human families present before divergence of Bilaterian species
2011 (English)In: Molecular biology and evolution, ISSN 0737-4038, E-ISSN 1537-1719, Vol. 28, no 4, 1531-1541 p.Article in journal (Refereed) Published
The Solute Carriers (SLCs) are membrane proteins that regulate transport of many types of substances over the cell membrane. The SLCs are found in at least 46 gene families in the human genome. Here we performed the first evolutionary analysis of the entire SLC family based on whole genome sequences. We systematically mined and analyzed the genomes of seventeen species to identify SLC genes. In all we identified 4813 SLC sequences in these genomes and we delineated the evolutionary history of each of the subgroups. Moreover, we also identified 10 new human sequences not previously classified as SLCs, which most likely belong to the SLC family. We found that 43 of the 46 SLC families found in H. sapiens were also found in C. elegans, while 42 of them were also found in insects. Mammals have higher number of SLC genes in most families, perhaps reflecting important roles for these in central nervous system functions. This study provides systematic analysis of the evolutionary history of the SLC families in Eukaryotes showing that the SLC superfamily is ancient with multiple branches that were present before early divergence of Bilateria. The results provide foundation for overall classification of SLC genes and are valuable for annotation and prediction of substrates for the many SLCs that have not been tested in experimental transport assays.
Place, publisher, year, edition, pages
2011. Vol. 28, no 4, 1531-1541 p.
Pfam, SLC, solute carrier, transporter
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:uu:diva-146218DOI: 10.1093/molbev/msq350ISI: 000288556200018PubMedID: 21186191OAI: oai:DiVA.org:uu-146218DiVA: diva2:397752