InterPro : IPR022457

Name  Aspartate-alanine antiporter Short Name  Asp_Ala_antiprt
Type  Family Description  This entry represents the aspartate/alanine antiporter and some other uncharacterised transporters. Asparate-alanine anti-transporter (AspT) is encoded next to the gene for aspartate 4-decarboxylase (AspD), which converts asparate to alanine, releasing CO2. The exchange of Asp for Ala is electrogenic, so the AspD/AspT system confers a proton-motive force []. AspT may forms homo-oligomers as a functional unit. Its transmembrane domain 3 (TM3) can undergoes l-aspartate-induced conformational alterations []. The topology of AspT has been studied [, , ].

Sequence Features

GO Displayer


InterPro protein domain ID --> Contigs



0 Child Features

2 Contains

Id Name Short Name Type
IPR006037 Regulator of K+ conductance, C-terminal RCK_C Domain
IPR006512 YidE/YbjL duplication YidE_YbjL Domain

0 Found In

0 Parent Features

5 Publications

First Author Title Year Journal Volume Pages
Sasahara A Substrate specificity of the aspartate:alanine antiporter (AspT) of Tetragenococcus halophilus in reconstituted liposomes. 2011 J Biol Chem 286 29044-52
Nanatani K Structural and functional importance of transmembrane domain 3 (TM3) in the aspartate:alanine antiporter AspT: topology and function of the residues of TM3 and oligomerization of AspT. 2009 J Bacteriol 191 2122-32
Nanatani K Topology of AspT, the aspartate:alanine antiporter of Tetragenococcus halophilus, determined by site-directed fluorescence labeling. 2007 J Bacteriol 189 7089-97
Nanatani K Membrane topology of the electrogenic aspartate-alanine antiporter AspT of Tetragenococcus halophilus. 2005 Biochem Biophys Res Commun 328 20-6
Fujiki T Membrane topology of aspartate:alanine antiporter AspT from Comamonas testosteroni. 2007 J Biochem 141 85-91

To cite PlanMine, please refer to the following publication:

Rozanski, A., Moon, H., Brandl, H., Martín-Durán, J. M., Grohme, M., Hüttner, K., Bartscherer, K., Henry, I., & Rink, J. C.
PlanMine 3.0—improvements to a mineable resource of flatworm biology and biodiversity
Nucleic Acids Research, gky1070. doi:10.1093/nar/gky1070 (2018)