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Escherichia coli K-12 substr. MG1655 Polypeptide: phage shock protein G



Gene: pspG Accession Numbers: EG11933 (EcoCyc), b4050, ECK4042

Synonyms: yjbO

Regulation Summary Diagram: ?

Summary:
The PspG protein is predicted to be an inner membrane protein. PspG is conserved in all bacteria that contain the psp operon. The PspG protein appears to affect motility [Lloyd04].

Expression of the pspG gene, like the phage shock operon pspABCDE, is upregulated by pIV secretin stress. Transcription by sigma54-containing RNA polymerase may be activated by PspF, and PspA negatively regulates pspG expression. pspG thus belongs to the PspF regulon [Lloyd04].

PspG self associates and interacts with PspC in vivo [Jovanovic10]

Locations: inner membrane

Map Position: [4,260,863 -> 4,261,105] (91.84 centisomes)
Length: 243 bp / 80 aa

Molecular Weight of Polypeptide: 9.023 kD (from nucleotide sequence)

Unification Links: ASAP:ABE-0013260 , EchoBASE:EB1877 , EcoGene:EG11933 , EcoliWiki:b4050 , OU-Microarray:b4050 , PortEco:pspG , Pride:P32696 , Protein Model Portal:P32696 , RefSeq:NP_418474 , RegulonDB:EG11933 , String:511145.b4050 , UniProt:P32696

Relationship Links: InterPro:IN-FAMILY:IPR014318 , Pfam:IN-FAMILY:PF09583

Genetic Regulation Schematic: ?

GO Terms:

Biological Process: GO:0009271 - phage shock Inferred from experiment [Lloyd04]
GO:0006950 - response to stress Inferred by computational analysis [UniProtGOA11]
Cellular Component: GO:0005886 - plasma membrane Inferred by computational analysis [UniProtGOA11a, UniProtGOA11, Lloyd04]
GO:0016020 - membrane Inferred by computational analysis [UniProtGOA11]
GO:0016021 - integral component of membrane Inferred by computational analysis [UniProtGOA11]

MultiFun Terms: cell processes defense/survival

Essentiality data for pspG knockouts: ?

Growth Medium Growth? T (°C) O2 pH Osm/L Growth Observations
LB Lennox Yes 37 Aerobic 7   Yes [Baba06, Comment 1]
M9 medium with 1% glycerol Yes 37 Aerobic 7.2 0.35 Yes [Joyce06, Comment 2]
MOPS medium with 0.4% glucose Yes 37 Aerobic 7.2 0.22 Yes [Baba06, Comment 1]

Sequence Features

Feature Class Location Citations Comment
Transmembrane-Region 5 -> 25
[UniProt10]
UniProt: Helical;; Non-Experimental Qualifier: potential;
Transmembrane-Region 41 -> 61
[UniProt10]
UniProt: Helical;; Non-Experimental Qualifier: potential;


Gene Local Context (not to scale): ?

Transcription Unit:

Notes:

History:
Peter D. Karp on Thu Jan 16, 2003:
Predicted gene function revised as a result of E. coli genome reannotation by Serres et al. [Serres01 ].
10/20/97 Gene b4050 from Blattner lab Genbank (v. M52) entry merged into EcoCyc gene EG11933; confirmed by SwissProt match.


References

Baba06: Baba T, Ara T, Hasegawa M, Takai Y, Okumura Y, Baba M, Datsenko KA, Tomita M, Wanner BL, Mori H (2006). "Construction of Escherichia coli K-12 in-frame, single-gene knockout mutants: the Keio collection." Mol Syst Biol 2;2006.0008. PMID: 16738554

Jovanovic10: Jovanovic G, Engl C, Mayhew AJ, Burrows PC, Buck M (2010). "Properties of the phage shock protein (Psp) regulatory complex that govern signal transduction and induction of the Psp response in Escherichia coli." Microbiology. PMID: 20595257

Joyce06: Joyce AR, Reed JL, White A, Edwards R, Osterman A, Baba T, Mori H, Lesely SA, Palsson BO, Agarwalla S (2006). "Experimental and computational assessment of conditionally essential genes in Escherichia coli." J Bacteriol 188(23);8259-71. PMID: 17012394

Lloyd04: Lloyd LJ, Jones SE, Jovanovic G, Gyaneshwar P, Rolfe MD, Thompson A, Hinton JC, Buck M (2004). "Identification of a new member of the phage shock protein response in Escherichia coli, the phage shock protein G (PspG)." J Biol Chem 279(53):55707-14. PMID: 15485810

Serres01: Serres MH, Gopal S, Nahum LA, Liang P, Gaasterland T, Riley M (2001). "A functional update of the Escherichia coli K-12 genome." Genome Biol 2(9);RESEARCH0035. PMID: 11574054

UniProt10: UniProt Consortium (2010). "UniProt version 2010-11 released on 2010-11-02 00:00:00." Database.

UniProtGOA11: UniProt-GOA (2011). "Gene Ontology annotation based on manual assignment of UniProtKB keywords in UniProtKB/Swiss-Prot entries."

UniProtGOA11a: UniProt-GOA (2011). "Gene Ontology annotation based on the manual assignment of UniProtKB Subcellular Location terms in UniProtKB/Swiss-Prot entries."


Report Errors or Provide Feedback
Please cite the following article in publications resulting from the use of EcoCyc: Nucleic Acids Research 41:D605-12 2013
Page generated by SRI International Pathway Tools version 18.5 on Thu Nov 27, 2014, biocyc11.