Identification
Name:Trk system potassium uptake protein trkG
Synonyms:Not Available
Gene Name:trkG
Enzyme Class:Not Available
Biological Properties
General Function:Involved in cation transmembrane transporter activity
Specific Function:Low-affinity potassium transport system. Interacts with trk system potassium uptake protein trkA. TrkE increases the affinity of the system
Cellular Location:Cell inner membrane; Multi-pass membrane protein
SMPDB Pathways:Not Available
KEGG Pathways:Not Available
Transports:
Transport References:
  • Orth, J. D., Conrad, T. M., Na, J., Lerman, J. A., Nam, H., Feist, A. M., Palsson, B. O. (2011). "A comprehensive genome-scale reconstruction of Escherichia coli metabolism--2011." Mol Syst Biol 7:535. Pubmed: 21988831
Metabolites:
ECMDB IDNameView
ECMDB21225Hydrogen ionMetaboCard
ECMDB04139PotassiumMetaboCard
GO Classification:
Component
cell part
integral to membrane
intrinsic to membrane
membrane part
Function
cation transmembrane transporter activity
ion transmembrane transporter activity
substrate-specific transmembrane transporter activity
transmembrane transporter activity
transporter activity
Process
cation transport
establishment of localization
ion transport
transmembrane transport
transport
Gene Properties
Blattner:b1363
Gene OrientationClockwise
Centisome Percentage:30.64
Left Sequence End1421806
Right Sequence End1423263
Gene Sequence:
>1458 bp
ATGAATACATCTCATGTAAGAGTTGTTACTCATATGTGTGGGTTCCTGGTTTGGCTCTAT
AGTCTTTCAATGTTGCCACCAATGGTTGTAGCATTGTTTTATAAAGAAAAAAGCCTGTTT
GTTTTCTTTATAACTTTCGTTATATTTTTTTGCATTGGTGGCGGAGCGTGGTATACAACT
AAGAAATCTGGCATTCAATTACGTACCCGTGATGGGTTTATTATAATTGTAATGTTTTGG
ATTTTGTTTTCTGTTATTAGTGCATTCCCTTTATGGATTGACTCAGAACTTAATTTAACG
TTCATTGATGCTCTGTTTGAAGGGGTTTCTGGAATAACAACAACAGGAGCAACTGTAATT
GATGATGTTAGTTCATTACCTCGGGCATATTTGTACTATCGGTCACAGTTAAATTTTATA
GGTGGTTTAGGAGTTATTGTTCTGGCGGTTGCTGTATTGCCATTATTGGGTATTGGTGGT
GCAAAGCTTTATCAGTCAGAAATGCCGGGGCCATTTAAGGATGACAAACTCACTCCCCGC
CTGGCCGATACGTCACGGACACTGTGGATAACTTATTCTTTATTAGGTATTGCTTGTATT
GTCTGTTATAGACTTGCAGGAATGCCTTTGTTTGATGCTATTTGTCACGGGATTTCCACA
GTTTCGCTTGGTGGTTTCTCAACTCATAGCGAGAGTATCGGATATTTTAATAACTATTTG
GTTGAGCTGGTGGCTGGTTCTTTTTCCCTGCTATCGGCTTTCAACTTCACTCTTTGGTAT
ATTGTTATTAGCAGGAAAACGATAAAACCTTTAATCAGAGATATTGAACTTCGTTTCTTT
CTGTTAATAGCCTTAGGGGTGATCATTGTTACCTCTTTCCAGGTCTGGCATATAGGTATG
TATGACTTGCATGGAAGTTTTATTCATTCGTTTTTTCTTGCCAGCTCCATGCTCACTGAT
AATGGTTTAGCTACGCAGGATTATGCAAGTTGGCCCACGCACACGATAGTGTTTTTGCTG
TTGTCAAGTTTCTTTGGGGGATGTATAGGTTCAACTTGTGGTGGAATTAAGTCACTTCGA
TTTCTTATACTTTTCAAACAAAGCAAACACGAGATAAATCAGCTTTCTCATCCCAGAGCG
TTGTTGAGTGTAAATGTAGGAGGGAAGATAGTTACAGATCGTGTAATGAGGTCTGTATGG
AGTTTCTTTTTTCTTTATACTCTCTTCACGGTGTTTTTTATACTGGTGTTAAATGGTATG
GGATATGATTTTCTTACATCATTTGCAACAGTGGCTGCATGTATTAATAATATGGGATTA
GGTTTTGGGGCTACTGCATCGTCATTCGGAGTGCTTAATGACATTGCAAAATGCTTAATG
TGCATAGCTATGATTCTTGGTCGCCTTGAAATTTATCCTGTTATTATATTGTTTTCAGGT
TTTTTTTGGCGCTCCTAA
Protein Properties
Pfam Domain Function:
Protein Residues:485
Protein Molecular Weight:53943
Protein Theoretical pI:9
Signaling Regions:
  • None
Transmembrane Regions:
  • 13-33
  • 39-59
  • 73-93
  • 100-120
  • 139-159
  • 194-214
  • 243-263
  • 279-299
  • 336-356
  • 399-419
  • 424-444
  • 462-482
Protein Sequence:
>Trk system potassium uptake protein trkG
MNTSHVRVVTHMCGFLVWLYSLSMLPPMVVALFYKEKSLFVFFITFVIFFCIGGGAWYTT
KKSGIQLRTRDGFIIIVMFWILFSVISAFPLWIDSELNLTFIDALFEGVSGITTTGATVI
DDVSSLPRAYLYYRSQLNFIGGLGVIVLAVAVLPLLGIGGAKLYQSEMPGPFKDDKLTPR
LADTSRTLWITYSLLGIACIVCYRLAGMPLFDAICHGISTVSLGGFSTHSESIGYFNNYL
VELVAGSFSLLSAFNFTLWYIVISRKTIKPLIRDIELRFFLLIALGVIIVTSFQVWHIGM
YDLHGSFIHSFFLASSMLTDNGLATQDYASWPTHTIVFLLLSSFFGGCIGSTCGGIKSLR
FLILFKQSKHEINQLSHPRALLSVNVGGKIVTDRVMRSVWSFFFLYTLFTVFFILVLNGM
GYDFLTSFATVAACINNMGLGFGATASSFGVLNDIAKCLMCIAMILGRLEIYPVIILFSG
FFWRS
References
External Links:
ResourceLink
Uniprot ID:P23849
Uniprot Name:TRKG_ECOLI
GenBank Gene ID:AP009048
Genebank Protein ID:1742227
Ecogene ID:EG11020
Ecocyc:EG11020
ColiBase:b1363
Kegg Gene:b1363
EchoBASE ID:EB1013
CCDB:TRKG_ECOLI
BacMap:16129324
General Reference:
  • Aiba, H., Baba, T., Hayashi, K., Inada, T., Isono, K., Itoh, T., Kasai, H., Kashimoto, K., Kimura, S., Kitakawa, M., Kitagawa, M., Makino, K., Miki, T., Mizobuchi, K., Mori, H., Mori, T., Motomura, K., Nakade, S., Nakamura, Y., Nashimoto, H., Nishio, Y., Oshima, T., Saito, N., Sampei, G., Horiuchi, T., et, a. l. .. (1996). "A 570-kb DNA sequence of the Escherichia coli K-12 genome corresponding to the 28.0-40.1 min region on the linkage map." DNA Res 3:363-377. Pubmed: 9097039
  • Blattner, F. R., Plunkett, G. 3rd, Bloch, C. A., Perna, N. T., Burland, V., Riley, M., Collado-Vides, J., Glasner, J. D., Rode, C. K., Mayhew, G. F., Gregor, J., Davis, N. W., Kirkpatrick, H. A., Goeden, M. A., Rose, D. J., Mau, B., Shao, Y. (1997). "The complete genome sequence of Escherichia coli K-12." Science 277:1453-1462. Pubmed: 9278503
  • Daley, D. O., Rapp, M., Granseth, E., Melen, K., Drew, D., von Heijne, G. (2005). "Global topology analysis of the Escherichia coli inner membrane proteome." Science 308:1321-1323. Pubmed: 15919996
  • Hayashi, K., Morooka, N., Yamamoto, Y., Fujita, K., Isono, K., Choi, S., Ohtsubo, E., Baba, T., Wanner, B. L., Mori, H., Horiuchi, T. (2006). "Highly accurate genome sequences of Escherichia coli K-12 strains MG1655 and W3110." Mol Syst Biol 2:2006.0007. Pubmed: 16738553
  • Schlosser, A., Kluttig, S., Hamann, A., Bakker, E. P. (1991). "Subcloning, nucleotide sequence, and expression of trkG, a gene that encodes an integral membrane protein involved in potassium uptake via the Trk system of Escherichia coli." J Bacteriol 173:3170-3176. Pubmed: 2022616