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Items: 1 to 50 of 105

1.

The mycobacterial antibiotic resistance determinant WhiB7 acts as a transcriptional activator by binding the primary sigma factor SigA (RpoV).

Burian J, Yim G, Hsing M, Axerio-Cilies P, Cherkasov A, Spiegelman GB, Thompson CJ.

Nucleic Acids Res. 2013 Dec;41(22):10062-76. doi: 10.1093/nar/gkt751. Epub 2013 Aug 28.

2.

Separate mechanisms are involved in rifampicin upmodulated and downmodulated gene expression in Salmonella Typhimurium.

Yim G, Spiegelman GB, Davies JE.

Res Microbiol. 2013 Jun;164(5):416-24. doi: 10.1016/j.resmic.2013.02.003. Epub 2013 Feb 16.

PMID:
23419780
3.

The GtaR protein negatively regulates transcription of the gtaRI operon and modulates gene transfer agent (RcGTA) expression in Rhodobacter capsulatus.

Leung MM, Brimacombe CA, Spiegelman GB, Beatty JT.

Mol Microbiol. 2012 Feb;83(4):759-74. doi: 10.1111/j.1365-2958.2011.07963.x. Epub 2012 Jan 11.

4.

Using invention to change how students tackle problems.

Taylor JL, Smith KM, van Stolk AP, Spiegelman GB.

CBE Life Sci Educ. 2010 Winter;9(4):504-12. doi: 10.1187/cbe.10-02-0012.

5.

Determinants of RasC specificity during Dictyostelium aggregation.

Bolourani P, Spiegelman G, Weeks G.

J Biol Chem. 2010 Dec 31;285(53):41374-9. doi: 10.1074/jbc.M110.181115. Epub 2010 Oct 22.

6.

Ras proteins have multiple functions in vegetative cells of Dictyostelium.

Bolourani P, Spiegelman G, Weeks G.

Eukaryot Cell. 2010 Nov;9(11):1728-33. doi: 10.1128/EC.00141-10. Epub 2010 Sep 10.

7.

An A257V mutation in the bacillus subtilis response regulator Spo0A prevents regulated expression of promoters with low-consensus binding sites.

Seredick SD, Seredick BM, Baker D, Spiegelman GB.

J Bacteriol. 2009 Sep;191(17):5489-98. doi: 10.1128/JB.00590-09. Epub 2009 Jul 6.

8.

Rap1 activation in response to cAMP occurs downstream of ras activation during Dictyostelium aggregation.

Bolourani P, Spiegelman GB, Weeks G.

J Biol Chem. 2008 Apr 18;283(16):10232-40. doi: 10.1074/jbc.M707459200. Epub 2008 Jan 7.

9.

Cyclic AMP signalling in Dictyostelium: G-proteins activate separate Ras pathways using specific RasGEFs.

Kae H, Kortholt A, Rehmann H, Insall RH, Van Haastert PJ, Spiegelman GB, Weeks G.

EMBO Rep. 2007 May;8(5):477-82. Epub 2007 Mar 23.

10.
11.

Transcription modulation of Salmonella enterica serovar Typhimurium promoters by sub-MIC levels of rifampin.

Yim G, de la Cruz F, Spiegelman GB, Davies J.

J Bacteriol. 2006 Nov;188(22):7988-91. Epub 2006 Sep 15.

12.

The world of subinhibitory antibiotic concentrations.

Davies J, Spiegelman GB, Yim G.

Curr Opin Microbiol. 2006 Oct;9(5):445-53. Epub 2006 Aug 30. Review.

PMID:
16942902
13.
14.

An activated Ras protein alters cell adhesion by dephosphorylating Dictyostelium DdCAD-1.

Secko DM, Siu CH, Spiegelman GB, Weeks G.

Microbiology. 2006 May;152(Pt 5):1497-505.

PMID:
16622066
15.
16.
17.

Loss of the Dictyostelium RasC protein alters vegetative cell size, motility and endocytosis.

Lim CJ, Zawadzki KA, Khosla M, Secko DM, Spiegelman GB, Weeks G.

Exp Cell Res. 2005 May 15;306(1):47-55.

PMID:
15878331
18.

Soj antagonizes Spo0A activation of transcription in Bacillus subtilis.

McLeod BN, Spiegelman GB.

J Bacteriol. 2005 Apr;187(7):2532-6.

19.

The identification of Dictyostelium phosphoproteins altered in response to the activation of RasG.

Secko DM, Insall RH, Spiegelman GB, Weeks G.

Proteomics. 2004 Sep;4(9):2629-39.

PMID:
15352238
20.

RasC plays a role in transduction of temporal gradient information in the cyclic-AMP wave of Dictyostelium discoideum.

Wessels D, Brincks R, Kuhl S, Stepanovic V, Daniels KJ, Weeks G, Lim CJ, Spiegelman G, Fuller D, Iranfar N, Loomis WF, Soll DR.

Eukaryot Cell. 2004 Jun;3(3):646-62.

21.

Chemoattractant-induced Ras activation during Dictyostelium aggregation.

Kae H, Lim CJ, Spiegelman GB, Weeks G.

EMBO Rep. 2004 Jun;5(6):602-6. Epub 2004 May 14.

22.

The Bacillus subtilis response regulator Spo0A stimulates sigmaA-dependent transcription prior to the major energetic barrier.

Seredick SD, Spiegelman GB.

J Biol Chem. 2004 Apr 23;279(17):17397-403. Epub 2004 Feb 18.

23.

Assay of transcription modulation by SpoOA of Bacillus subtilis.

Seredick SD, Turner BM, Spiegelman GB.

Methods Enzymol. 2003;370:312-23. No abstract available.

PMID:
14712656
24.

Cytoskeletal regulation by Dictyostelium Ras subfamily proteins.

Lim CJ, Spiegelman GB, Weeks G.

J Muscle Res Cell Motil. 2002;23(7-8):729-36. Review.

PMID:
12952071
25.

Roles played by Ras subfamily proteins in the cell and developmental biology of microorganisms.

Weeks G, Spiegelman GB.

Cell Signal. 2003 Oct;15(10):901-9. Review.

PMID:
12873703
26.

The genetic core of the universal ancestor.

Harris JK, Kelley ST, Spiegelman GB, Pace NR.

Genome Res. 2003 Mar;13(3):407-12.

27.

Culture-independent molecular analysis of microbial constituents of the healthy human outer ear.

Frank DN, Spiegelman GB, Davis W, Wagner E, Lyons E, Pace NR.

J Clin Microbiol. 2003 Jan;41(1):295-303.

28.

Evidence for a role for the Dictyostelium Rap1 in cell viability and the response to osmotic stress.

Kang R, Kae H, Ip H, Spiegelman GB, Weeks G.

J Cell Sci. 2002 Sep 15;115(Pt 18):3675-82.

29.

Dimer formation and transcription activation in the sporulation response regulator Spo0A.

Lewis RJ, Scott DJ, Brannigan JA, Ladds JC, Cervin MA, Spiegelman GB, Hoggett JG, Barák I, Wilkinson AJ.

J Mol Biol. 2002 Feb 15;316(2):235-45.

PMID:
11851334
30.

Glucose-resistant sporulation in Bacillus subtilis crsA47 mutants does not depend on promoter switching at the spo0A gene.

Dixon LG, Spiegelman GB.

J Bacteriol. 2002 Mar;184(5):1458-61. Erratum in: J Bacteriol 2002 May;184(9):2567.

31.

A Ras subfamily GTPase shows cell cycle-dependent nuclear localization.

Sutherland BW, Spiegelman GB, Weeks G.

EMBO Rep. 2001 Nov;2(11):1024-8. Epub 2001 Oct 17.

32.
33.
34.

RasG regulates discoidin gene expression during Dictyostelium growth.

Secko DM, Khosla M, Gaudet P, Tsang A, Spiegelman GB, Weeks G.

Exp Cell Res. 2001 May 15;266(1):135-41.

PMID:
11339832
35.

Lessons and questions from the structure of the Spo0A activation domain.

Seredick S, Spiegelman GB.

Trends Microbiol. 2001 Apr;9(4):148-51.

PMID:
11286862
36.

Expression of activated Ras during Dictyostelium development alters cell localization and changes cell fate.

Jaffer ZM, Khosla M, Spiegelman GB, Weeks G.

Development. 2001 Mar;128(6):907-16.

37.
38.

Dictyostelium RasD is required for normal phototaxis, but not differentiation.

Wilkins A, Khosla M, Fraser DJ, Spiegelman GB, Fisher PR, Weeks G, Insall RH.

Genes Dev. 2000 Jun 1;14(11):1407-13.

39.

A role for Asp75 in domain interactions in the Bacillus subtilis response regulator Spo0A.

Cervin MA, Spiegelman GB.

J Biol Chem. 2000 Jul 21;275(29):22025-30.

40.

Functional overlap of the dictyostelium RasG, RasD and RasB proteins.

Khosla M, Spiegelman GB, Insall R, Weeks G.

J Cell Sci. 2000 Apr;113 ( Pt 8):1427-34.

41.

A mutation that separates the RasG signals that regulate development and cytoskeletal function in Dictyostelium.

Zhang T, Rebstein PJ, Khosla M, Cardelli J, Buczynski G, Bush J, Spiegelman GB, Weeks G.

Exp Cell Res. 1999 Mar 15;247(2):356-66.

PMID:
10066363
42.
43.

The small Mr Ras-like GTPase Rap1 and the phospholipase C pathway act to regulate phagocytosis in Dictyostelium discoideum.

Seastone DJ, Zhang L, Buczynski G, Rebstein P, Weeks G, Spiegelman G, Cardelli J.

Mol Biol Cell. 1999 Feb;10(2):393-406.

44.
46.

A negative regulator linking chromosome segregation to developmental transcription in Bacillus subtilis.

Cervin MA, Spiegelman GB, Raether B, Ohlsen K, Perego M, Hoch JA.

Mol Microbiol. 1998 Jul;29(1):85-95.

47.

The Bacillus subtilis regulator SinR inhibits spoIIG promoter transcription in vitro without displacing RNA polymerase.

Cervin MA, Lewis RJ, Brannigan JA, Spiegelman GB.

Nucleic Acids Res. 1998 Aug 15;26(16):3806-12.

48.
49.

Unique gene organization: alternative splicing in Drosophila produces two structurally unrelated proteins.

Mottus RC, Whitehead IP, O'Grady M, Sobel RE, Burr RH, Spiegelman GB, Grigliatti TA.

Gene. 1997 Oct 1;198(1-2):229-36.

PMID:
9370286
50.

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