![](https://parts.igem.org/images/partbypart/icon_coding.png)
Part:BBa_K2230020
ptsG/pSB1C3
Salmonella typhimurium LT2 has two glucose-specific transporter systems, PTS system and sodium/glucose cotransporter. PTS system contains two subunits IIA encoded by crr and IIBC by ptsG which are assembled to a high-affinity active transporter. The other is a Na+/glucose cotransporter encoded by STM1128 that contributes to facilitated transport with lower glucose affinity.
Research
Based on our research, the glucose transporter of Salmonella has a lower Km compared to human small intestine, Staphylococcus and E. coli, indicating a higher efficiency for glucose uptake. In our study, we demonstrated glucose absorption ability by overexpressing two systems in E. coli. Please go to our wiki page ([http://2017.igem.org/Team:Mingdao/Demonstrate Mingdao iGEM 2017]) for more information.
Cloning
The ptsG gene was amplified from gDNA of Salmonella typhimurium and cloned onto pSB1C3
Reference
1. Glucose Galactose Malabsorption. American Journal of Physiology - Gastrointestinal and Liver Physiology 1998;275:G879-G882
2. Functional Properties and Genomics of Glucose Transporters. Curr Genomics. 2007;8(2): 113–128.
3. The SLC2 (GLUT) Family of Membrane Transporters. Mol Aspects Med. 2013;34(0): 121–138.
4. Glucose and Glycolysis Are Required for the Successful Infection of Macrophages and Mice by Salmonella enterica Serovar Typhimurium. Infect Immun. 2009;77(7): 3117–3126.
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21COMPATIBLE WITH RFC[21]
- 23COMPATIBLE WITH RFC[23]
- 25INCOMPATIBLE WITH RFC[25]Illegal NgoMIV site found at 783
Illegal NgoMIV site found at 1206
Illegal AgeI site found at 490 - 1000COMPATIBLE WITH RFC[1000]
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