TCDB is operated by the Saier Lab Bioinformatics Group
TCIDNameDomainKingdom/PhylumProtein(s)
*2.A.8.1.1









D-Gluconate:H+ symporter of 448 aas and 11 TMSs.  It is encoded in an operon with gluconate kinase (Fujita et al. 1986).

Bacteria
Firmicutes
GntP of Bacillus subtilis
*2.A.8.1.2









L-Idonate/D-Gluconate:H+ symporter, IdnT, GntW, YjgT (Bausch et al., 1998)

Bacteria
Proteobacteria
IdnT (GntW; YjgT) of E. coli
*2.A.8.1.3









D-Fructuronate/D-gluconate:H+ symporter, GntP (Bates Utz et al., 2004)
Bacteria
Proteobacteria
GntP of E. coli (P0AC94)
*2.A.8.1.4









D-Gluconate:H+ symporter, GntT (Porco et al., 1997)
Bacteria
Proteobacteria
GntT of E. coli (P39835)
*2.A.8.1.5









The D-serine transporter, DsdX (KM=60µM) (may also transport D-threonine which inhibits D-serine uptake) (Anfora and Welch, 2006). Eliminating the dsdX gene renders the cell more sensitive to chloramphenicol (Duo et al. 2008).

Bacteria
Proteobacteria
DsdX of E. coli (P08555)
*2.A.8.1.6









The putative D-glycerate transporter, GrtP. Regulated by glycerate-responsive regulator SdaR (Rodionov et al. 2011)

Bacteria
Proteobacteria
GrtP of Shewanella oneidensis (Q8EG39)
*2.A.8.1.7









Inner membrane permease YgbN

Bacteria
Proteobacteria
YgbN of Escherichia coli
*2.A.8.1.8









Low-affinity (212 μM), gluconate-inducible, gluconate transporter (gluconate permease) (GntU/the Gnt-I system) (Tong et al. 1996). The gntU gene is in an operon with gntK, encoding a gluconate kinase (Tong et al. 1996).  This system has been utilized for the production of pyruvate from gluconate (Yang et al. 2017).

Bacteria
Proteobacteria
GntU of Escherichia coli
*2.A.8.1.9









Uncharacterized transporter HI_0092
Bacteria
Proteobacteria
HI_0092 of Haemophilus influenzae
*2.A.8.1.10









D-glycerate transporter of 430 aas and 14 putative TMSs.  The gene is next to and probably in the same operon with a gene encoding D-glycerate kinase.

Bacteria
Firmicutes
D-glycerate transporter of Enterococcus faecium
*2.A.8.1.11









Putative gluconate analog transporter of 449 aas and 11 TMSs, YjhF.

Bacteria
Proteobacteria
YjhF of E. coli
*2.A.8.1.12









The putative histidine porter, YuiF. Regulated by Histidine repressor HisR (Ravcheev et al. 2011)

Bacteria
Firmicutes
YuiF of Bacillus subtilis (O32105)
*2.A.8.1.13









A putative propionate/butyrate/hydroxybutyrate transporter

Bacteria
Fusobacteria
Putative propionate permease of Fusobacterium nucleatum (gi 19704150)
*2.A.8.1.14









Putative D-beta-hydroxy butyrate permease, BhbP

Bacteria
Firmicutes
BhbP of Bacillus cereus (Q81E21)
*2.A.8.1.15









Gluconate porter of 463 aas and 13 TMSs, GntP (Letek et al. 2006; Porco et al. 2008).

Bacteria
Actinobacteria
GntP of Corynebacterium glutamicum (Brevibacterium saccharolyticum)