Escherichia coli K-12 substr. MG1655 Polypeptide: predicted lipoprotein

Gene: yghJ Accession Numbers: G7541 (EcoCyc), b4466, ECK2968

Synonyms: b2974 (obsolete), b2973 (obsolete), sslE

Regulation Summary Diagram: ?

Regulation summary diagram for yghJ

YghJ is a hypothetical protein. yghJ contains a predicted lipoprotein signal [Gonnet04].

In enterotoxigenic E. coli strain H10407 yghj is located upstream of an operon encoding a type 2 secretion system (T2SSβ). Deletion of yghJ in the enterotoxigenic E. coli strain H10407 had no effect on secretin assembly or the secretion of enterotoxin [Strozen12].

Locations: inner membrane

Map Position: [3,112,572 <- 3,117,134] (67.09 centisomes, 242°)
Length: 4563 bp / 1520 aa

Molecular Weight of Polypeptide: 167.24 kD (from nucleotide sequence)

Unification Links: ASAP:ABE-0174096 , EchoBASE:EB2817 , EcoGene:EG12994 , EcoliWiki:b4466 , OU-Microarray:b2974 , PortEco:yghJ , Pride:P0CK95 , Protein Model Portal:P0CK95 , RefSeq:YP_026189 , RegulonDB:G7541 , UniProt:P0CK95

Relationship Links: InterPro:IN-FAMILY:IPR025385 , Pfam:IN-FAMILY:PF13322 , Prosite:IN-FAMILY:PS51257 , Prosite:IN-FAMILY:PS51723

GO Terms:

Cellular Component: GO:0005886 - plasma membrane Inferred by computational analysis [UniProtGOA11, UniProtGOA11a]
GO:0016020 - membrane Inferred by computational analysis [UniProtGOA11a]

Gene Class: ORFs

Essentiality data for yghJ knockouts: ?

Growth Medium Growth? T (°C) O2 pH Osm/L Growth Observations
LB enriched Yes 37 Aerobic 6.95   Yes [Gerdes03, Comment 1]
LB Lennox Yes 37 Aerobic 7   Yes [Baba06, Comment 2]
M9 medium with 1% glycerol Yes 37 Aerobic 7.2 0.35 Yes [Joyce06, Comment 3]
MOPS medium with 0.4% glucose Yes 37 Aerobic 7.2 0.22 Yes [Baba06, Comment 2]

Last-Curated ? 27-Aug-2012 by Mackie A , Macquarie University

Sequence Features

Protein sequence of predicted lipoprotein with features indicated

Feature Class Location Citations Comment
Signal-Sequence 1 -> 23
UniProt: Non-Experimental Qualifier: potential;
Lipid-Binding-Site 24
UniProt: N-palmitoyl cysteine; Non-Experimental Qualifier: potential;
Chain 24 -> 1520
UniProt: Putative lipoprotein acfD homolog;
Conserved-Region 1081 -> 1381
UniProt: Peptidase M60.
Extrinsic-Sequence-Variant 1358
UniProt: In strain: O15:H- / 83/39 / ETEC..
Extrinsic-Sequence-Variant 1392 -> 1402
UniProt: In strain: O15:H- / 83/39 / ETEC..
Extrinsic-Sequence-Variant 1423 -> 1428
UniProt: In strain: O15:H- / 83/ 39 / ETEC..
Extrinsic-Sequence-Variant 1498
UniProt: In strain: O15:H- / 83/39 / ETEC..
Extrinsic-Sequence-Variant 1511
UniProt: In strain: O15:H- / 83/39 / ETEC..
Extrinsic-Sequence-Variant 1519
UniProt: In strain: O15:H- / 83/39 / ETEC..

Gene Local Context (not to scale): ?

Gene local context diagram

Transcription Unit:

Transcription-unit diagram


10/21/2004 (paley) Merged genes G7540/b2973 into G7541/b2974
Markus Krummenacker on Tue Oct 14, 1997:
Gene object created from Blattner lab Genbank (v. M52) entry.
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 ].
Markus Krummenacker on Tue Oct 14, 1997:
Gene object created from Blattner lab Genbank (v. M52) entry.


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

Gerdes03: Gerdes SY, Scholle MD, Campbell JW, Balazsi G, Ravasz E, Daugherty MD, Somera AL, Kyrpides NC, Anderson I, Gelfand MS, Bhattacharya A, Kapatral V, D'Souza M, Baev MV, Grechkin Y, Mseeh F, Fonstein MY, Overbeek R, Barabasi AL, Oltvai ZN, Osterman AL (2003). "Experimental determination and system level analysis of essential genes in Escherichia coli MG1655." J Bacteriol 185(19);5673-84. PMID: 13129938

Gonnet04: Gonnet P, Rudd KE, Lisacek F (2004). "Fine-tuning the prediction of sequences cleaved by signal peptidase II: a curated set of proven and predicted lipoproteins of Escherichia coli K-12." Proteomics 4(6);1597-613. PMID: 15174130

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

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

Strozen12: Strozen TG, Li G, Howard SP (2012). "YghG (GspSβ) Is a Novel Pilot Protein Required for Localization of the GspSβ Type II Secretion System Secretin of Enterotoxigenic Escherichia coli." Infect Immun 80(8);2608-22. PMID: 22585966

UniProt09: UniProt Consortium (2009). "UniProt version 15.8 released on 2009-10-01 00:00:00." Database.

UniProt10a: UniProt Consortium (2010). "UniProt version 2010-07 released on 2010-06-15 00:00:00." Database.

UniProt14a: UniProt Consortium (2014). "UniProt version 2014-08 released on 2014-08-01 00:00:00." Database.

UniProt15: UniProt Consortium (2015). "UniProt version 2015-01 released on 2015-01-16 00:00:00." Database.

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

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

Zhai02: Zhai Y, Saier MH (2002). "The beta-barrel finder (BBF) program, allowing identification of outer membrane beta-barrel proteins encoded within prokaryotic genomes." Protein Sci 11(9);2196-207. PMID: 12192075

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
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