ptsG
168
glucose permease of the phosphotransferase system, EIICBA of the PTS, Trigger enzyme, control of GlcT activity
Locus
BSU_13890
Molecular weight
75.34 kDa
Isoelectric point
5.41
Product
glucose permease, trigger enzyme
Essential
no
E.C.
2.7.1.69
Synonyms
ptsG, ptsX, crr
Outlinks
Genomic Context
Categories containing this gene/protein
List of homologs in different organisms, belongs to COG2190 (Galperin et al., 2021)
This gene is a member of the following regulons
Gene
Coordinates
1,457,187 → 1,459,286
The protein
Catalyzed reaction/ biological activity
transport and phosphorylation of glucose, receives a phosphate from HPr]] at the IIA domain (His-620), the phosphate group is then transferred to the IIB domain (Cys-461) an finally to the incoming glucose. In the absence of glucose, PtsG phosphorylates and thereby inactivates the transcriptional antiterminator GlcT.
D-glucose + Nπ-phospho-L-histidyl-[protein] --> D-glucose-6-P + L-histidyl-[protein] (according to UniProt)
Protein family
11x transmembrane domain (16–36, 89–109, 139–159, 180–200, 233–253, 283–303, 313–333, 338–358, 365–385, 388–408)
PTS EIIA domain type-1 (aa 568–672) (according to UniProt)
PTS EIIB domain type-1 (aa 439–520) (according to UniProt)
PTS EIIC domain type-1 (aa 1-424) (according to UniProt)
Structure
8QSR (PDB) (the IIC dimer of E. coli PtsG, 47% identity) PubMed
5IWS (PDB) (the IIC domain of B. cereus MalT, 32% identity) PubMed
1AX3 (PDB) (IIA domain) PubMed
1GPR (PDB) (IIA domain)
Modification
transient phosphorylation (HPr]]-dependent) on His-620, then internal phosphotransfer from His-620 to Cys-461
Paralogous protein(s)
membrane protein PubMed
Expression and Regulation
Operons
Description
Regulation
Regulatory mechanism
stringent response: negative regulation, in stringent response
Sigma factors
Open in new tab
Biological materials
Mutant
Expression vectors
pGP123 (domains BA, in pWH844), available in Jörg Stülke's lab
pGP141 (domains BA, mut: H620D, in pWH844), available in Jörg Stülke's lab
pGP428 (EIIB, in pWH844), available in Jörg Stülke's lab
pGP437(EIIA in pGP570, with thrombin cleavage site), available in Jörg Stülke's lab
LacZ fusion
pGP606 (mutant terminator, pAC6), available in Jörg Stülke's lab
pGP532 (pAC7), available in Jörg Stülke's lab
series of RAT mutants are available in pAC6, available in Jörg Stülke's lab
Labs working on this gene/protein
Jörg Stülke, University of Göttingen, Germany Homepage
References
Reviews
The bacterial phosphoenolpyruvate:carbohydrate phosphotransferase system: regulation by protein phosphorylation and phosphorylation-dependent protein-protein interactions.
Microbiology and molecular biology reviews : MMBR. 2014 Jun; 78(2):231-56. doi:10.1128/MMBR.00001-14. PMID:24847021
Carbon catabolite repression in bacteria: many ways to make the most out of nutrients.
Nature reviews. Microbiology. 2008 Aug; 6(8):613-24. doi:10.1038/nrmicro1932. PMID:18628769
Trigger enzymes: bifunctional proteins active in metabolism and in controlling gene expression.
Molecular microbiology. 2008 Feb; 67(4):692-702. . PMID:18086213
How phosphotransferase system-related protein phosphorylation regulates carbohydrate metabolism in bacteria.
Microbiology and molecular biology reviews : MMBR. 2006 Dec; 70(4):939-1031. . PMID:17158705
Regulation of carbon catabolism in Bacillus species.
Annual review of microbiology. 2000; 54:849-80. . PMID:11018147
Coupling physiology and gene regulation in bacteria: the phosphotransferase sugar uptake system delivers the signals.
Die Naturwissenschaften. 1998 Dec; 85(12):583-92. . PMID:9871918
Original Publications
Structure and mechanism of a phosphotransferase system glucose transporter.Nature communications. 2024 Sep 12; 15(1):7992. PMID: 39266522
Protein complexes in cells by AI-assisted structural proteomics.Molecular systems biology. 2023 Feb 23; :e11544. PMID: 36815589
Systematic stress adaptation of Bacillus subtilis to tetracycline exposure.
Ecotoxicology and environmental safety. 2019 Nov 15; :109910. pii:S0147-6513(19)31241-2. doi:10.1016/j.ecoenv.2019.109910. PMID:31740237
Cross-talk among transporters of the phosphoenolpyruvate-dependent phosphotransferase system in .
Journal of bacteriology. 2018 Jul 23; . pii:JB.00213-18. doi:10.1128/JB.00213-18. PMID:30038046
The Structure of a Sugar Transporter of the Glucose EIIC Superfamily Provides Insight into the Elevator Mechanism of Membrane Transport.
Structure (London, England : 1993). 2016 Jun 07; 24(6):956-64. doi:10.1016/j.str.2016.04.003. pii:S0969-2126(16)30039-9. PMID:27161976
Physiologic consequences of glucose transport and phosphoenolpyruvate node modifications in Bacillus subtilis 168.
Journal of molecular microbiology and biotechnology. 2012; 22(3):177-97. doi:10.1159/000339973. PMID:22846916
Heavy involvement of stringent transcription control depending on the adenine or guanine species of the transcription initiation site in glucose and pyruvate metabolism in Bacillus subtilis.
Journal of bacteriology. 2010 Mar; 192(6):1573-85. doi:10.1128/JB.01394-09. PMID:20081037
From complementarity to comprehensiveness--targeting the membrane proteome of growing Bacillus subtilis by divergent approaches.
Proteomics. 2008 Oct; 8(19):4123-36. doi:10.1002/pmic.200800258. PMID:18763711
Keeping signals straight in transcription regulation: specificity determinants for the interaction of a family of conserved bacterial RNA-protein couples.
Nucleic acids research. 2006; 34(21):6102-15. . PMID:17074746
A protein-dependent riboswitch controlling ptsGHI operon expression in Bacillus subtilis: RNA structure rather than sequence provides interaction specificity.
Nucleic acids research. 2004; 32(9):2853-64. . PMID:15155854
Control of the Bacillus subtilis antiterminator protein GlcT by phosphorylation. Elucidation of the phosphorylation chain leading to inactivation of GlcT.
The Journal of biological chemistry. 2003 Dec 19; 278(51):51108-15. . PMID:14527945
Transcriptional profiling of gene expression in response to glucose in Bacillus subtilis: regulation of the central metabolic pathways.
Metabolic engineering. 2003 Apr; 5(2):133-49. . PMID:12850135
Induction of the Bacillus subtilis ptsGHI operon by glucose is controlled by a novel antiterminator, GlcT.
Molecular microbiology. 1997 Jul; 25(1):65-78. . PMID:11902727
Novel phosphotransferase system genes revealed by genome analysis - the complete complement of PTS proteins encoded within the genome of Bacillus subtilis.
Microbiology (Reading, England). 1999 Dec; 145 ( Pt 12):3419-29. . PMID:10627040
Specific interaction of the RNA-binding domain of the bacillus subtilis transcriptional antiterminator GlcT with its RNA target, RAT.
Journal of molecular biology. 1999 Nov 05; 293(4):795-805. . PMID:10543968
Regulation of the Bacillus subtilis GlcT antiterminator protein by components of the phosphotransferase system.
Journal of bacteriology. 1998 Oct; 180(20):5319-26. . PMID:9765562
High-resolution solution structure of Bacillus subtilis IIAglc.
Proteins. 1998 May 15; 31(3):258-70. . PMID:9593197
High-resolution solution structure of Bacillus subtilis IIAglc.
Proteins. 1998 May 15; 31(3):258-70. . PMID:9593197
Characterization of the presumptive phosphorylation sites of the Bacillus subtilis glucose permease by site-directed mutagenesis: implication in glucose transport and catabolite repression.
FEMS microbiology letters. 1997 Nov 15; 156(2):233-8. . PMID:9513271
Mapping of the binding interfaces of the proteins of the bacterial phosphotransferase system, HPr and IIAglc.
Biochemistry. 1993 Jan 12; 32(1):32-7. . PMID:8418852
The glucose permease of Bacillus subtilis is a single polypeptide chain that functions to energize the sucrose permease.
The Journal of biological chemistry. 1990 Oct 25; 265(30):18581-9. . PMID:2120236
The glucose permease of the phosphotransferase system of Bacillus subtilis: evidence for IIGlc and IIIGlc domains.
Molecular microbiology. 1991 May; 5(5):1241-9. . PMID:1956301
Crystallization of the IIA domain of the glucose permease of Bacillus subtilis.
Journal of molecular biology. 1991 Oct 20; 221(4):1079-80. . PMID:1942043
Structure of the IIA domain of the glucose permease of Bacillus subtilis at 2.2-A resolution.
Biochemistry. 1991 Oct 08; 30(40):9583-94. . PMID:1911744
Polypeptide backbone resonance assignments and secondary structure of Bacillus subtilis enzyme IIIglc determined by two-dimensional and three-dimensional heteronuclear NMR spectroscopy.
Biochemistry. 1991 Jul 16; 30(28):6896-907. . PMID:1906345
Low resolution solution structure of the Bacillus subtilis glucose permease IIA domain derived from heteronuclear three-dimensional NMR spectroscopy.
FEBS letters. 1992 Jan 20; 296(2):148-52. . PMID:1733770
Assignment of the aliphatic 1H and 13C resonances of the Bacillus subtilis glucose permease IIA domain using double- and triple-resonance heteronuclear three-dimensional NMR spectroscopy.
Biochemistry. 1992 May 12; 31(18):4413-25. . PMID:1581296
Cloning and nucleotide sequence of the ptsG gene of Bacillus subtilis.
Molecular & general genetics : MGG. 1992 Aug; 234(2):325-8. . PMID:1508157
An atomic model for protein-protein phosphoryl group transfer.
The Journal of biological chemistry. 1992 Dec 05; 267(34):24819-23. . PMID:1447219
Backbone dynamics of the Bacillus subtilis glucose permease IIA domain determined from 15N NMR relaxation measurements.
Biochemistry. 1992 May 12; 31(18):4394-406. . PMID:1316146
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Time of last update: 2025-04-07 10:21:06
Author of last update: Jstuelk