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Items: 1 to 50 of 61

1.

A ten-year search for synchronous cells: obstacles, solutions, and practical applications.

Helmstetter CE.

Front Microbiol. 2015 Mar 25;6:238. doi: 10.3389/fmicb.2015.00238. eCollection 2015. Review.

2.

Technology for cell cycle research with unstressed steady-state cultures.

Lebleu VS, Thornton M, Gonda SR, Helmstetter CE.

Cytotechnology. 2006 Jul;51(3):149-57. doi: 10.1007/s10616-006-9024-5. Epub 2006 Nov 21.

3.

Cyclin mRNA stability does not vary during the cell cycle.

Eward KL, Van Ert MN, Thornton M, Helmstetter CE.

Cell Cycle. 2004 Aug;3(8):1057-61. Epub 2004 Aug 17.

PMID:
15254409
4.

Synchronous cultures from the baby machine. A model for animal cells.

Grover NB, Eward KL, Helmstetter CE.

Math Biosci. 2004 Jul;190(1):87-96.

PMID:
15172804
5.

Synchrony in human, mouse and bacterial cell cultures--a comparison.

Helmstetter CE, Thornton M, Romero A, Eward KL.

Cell Cycle. 2003 Jan-Feb;2(1):42-5.

PMID:
12695687
6.

Production of minimally disturbed synchronous cultures of hematopoietic cells.

Thornton M, Eward KL, Helmstetter CE.

Biotechniques. 2002 May;32(5):1098-100, 1102, 1105.

7.

Synchronous cultures from the baby machine: anatomy of a model.

Grover NB, Coustère-Yakir C, Helmstetter CE.

J Theor Biol. 2001 Oct 7;212(3):391-8.

PMID:
11829359
8.

P1 and NR1 plasmid replication during the cell cycle of Escherichia coli.

Bogan JA, Grimwade JE, Thornton M, Zhou P, Denning GD, Helmstetter CE.

Plasmid. 2001 May;45(3):200-8.

PMID:
11407915
9.

Cell-cycle research with synchronous cultures: an evaluation.

Helmstetter CE, Thornton M, Grover NB.

Biochimie. 2001 Jan;83(1):83-9.

PMID:
11254979
10.

Transcription level of operon ftsYEX and activity of promoter P1 of rpoH during the cell cycle in Escherichia coli.

Gómez-Eichelmann MC, Helmstetter CE.

J Basic Microbiol. 1999;39(4):237-42.

PMID:
10520269
11.

DNA sequestration and transcription in the oriC region of Escherichia coli.

Bogan JA, Helmstetter CE.

Mol Microbiol. 1997 Dec;26(5):889-96.

12.

Gravity and the orientation of cell division.

Helmstetter CE.

Proc Natl Acad Sci U S A. 1997 Sep 16;94(19):10195-8.

13.

Replication and segregation of a miniF plasmid during the division cycle of Escherichia coli.

Helmstetter CE, Thornton M, Zhou P, Bogan JA, Leonard AC, Grimwade JE.

J Bacteriol. 1997 Feb;179(4):1393-9.

14.

Gene transcription and chromosome replication in Escherichia coli.

Zhou P, Bogan JA, Welch K, Pickett SR, Wang HJ, Zaritsky A, Helmstetter CE.

J Bacteriol. 1997 Jan;179(1):163-9.

15.

mioC transcription, initiation of replication, and the eclipse in Escherichia coli.

Bogan JA, Helmstetter CE.

J Bacteriol. 1996 Jun;178(11):3201-6.

16.
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19.

Dimensional rearrangement of Escherichia coli B/r cells during a nutritional shift-down.

Zaritsky A, Woldringh CL, Helmstetter CE, Grover NB.

J Gen Microbiol. 1993 Nov;139(11):2711-4.

PMID:
8277254
20.

Correlation of gene transcription with the time of initiation of chromosome replication in Escherichia coli.

Theisen PW, Grimwade JE, Leonard AC, Bogan JA, Helmstetter CE.

Mol Microbiol. 1993 Nov;10(3):575-84.

PMID:
7968535
21.
22.

Relationships between chromosome segregation, cell shape and temperature in Escherichia coli.

Helmstetter CE, Leonard AC, Grimwade JE.

J Theor Biol. 1992 Nov 21;159(2):261-6.

PMID:
1294848
23.

Improved bacterial baby machine: application to Escherichia coli K-12.

Helmstetter CE, Eenhuis C, Theisen P, Grimwade J, Leonard AC.

J Bacteriol. 1992 Jun;174(11):3445-9.

24.

Description of a baby machine for Saccharomyces cerevisiae.

Helmstetter CE.

New Biol. 1991 Nov;3(11):1089-96.

PMID:
1777482
25.

Involvement of cell shape in the replication and segregation of chromosomes in Escherichia coli.

Helmstetter CE, Leonard AC.

Res Microbiol. 1990 Jan;141(1):30-9. Review.

PMID:
2194247
26.
27.
28.

Replication patterns of multiple plasmids coexisting in Escherichia coli.

Leonard AC, Helmstetter CE.

J Bacteriol. 1988 Mar;170(3):1380-3.

29.

E. coli minichromosome replication in vitro and in vivo: comparative analyses of replication intermediates.

Munson BR, Hucul JA, Maier PG, Krajewski CA, Helmstetter CE.

Biochim Biophys Acta. 1987 Oct 9;910(1):11-20.

PMID:
3307923
30.

Mechanism for chromosome and minichromosome segregation in Escherichia coli.

Helmstetter CE, Leonard AC.

J Mol Biol. 1987 Sep 20;197(2):195-204.

PMID:
3316668
31.
32.

Overexpression of the dnaA gene in Escherichia coli B/r: chromosome and minichromosome replication in the presence of rifampin.

Pierucci O, Helmstetter CE, Rickert M, Weinberger M, Leonard AC.

J Bacteriol. 1987 May;169(5):1871-7.

33.

Cell cycle-specific replication of Escherichia coli minichromosomes.

Leonard AC, Helmstetter CE.

Proc Natl Acad Sci U S A. 1986 Jul;83(14):5101-5.

34.

Discontinuity in DNA replication during expression of accumulated initiation potential in dnaA mutants of Escherichia coli.

Helmstetter CE, Krajewski CA, Leonard AC, Weinberger M.

J Bacteriol. 1986 Feb;165(2):631-7.

35.

Involvement of DNA superhelicity in minichromosome maintenance in Escherichia coli.

Leonard AC, Whitford WG, Helmstetter CE.

J Bacteriol. 1985 Feb;161(2):687-95.

36.

Detection of proteins which recognize and bind oriC sequences.

Weinberger M, Greene RS, Nash CR, Helmstetter CE.

Biochem Biophys Res Commun. 1984 Dec 14;125(2):600-5.

PMID:
6393979
38.

Kinetics of minichromosome replication in Escherichia coli B/r.

Leonard AC, Hucul JA, Helmstetter CE.

J Bacteriol. 1982 Feb;149(2):499-507.

39.

Initiation of chromosome replication in dnaA and dnaC mutants of Escherichia coli B/r F.

Helmstetter CE, Krajewski CA.

J Bacteriol. 1982 Feb;149(2):685-93.

40.

F plasmid replication and the division cycle of Escherichia coli B/r.

Steinberg DA, Helmstetter CE.

Plasmid. 1981 Nov;6(3):342-53. No abstract available.

PMID:
7031716
41.

Coordination between chromosome replication and cell division in Escherichia coli.

Tang MS, Helmstetter CE.

J Bacteriol. 1980 Mar;141(3):1148-56.

42.

Chromosome replication and cell division in plasmid-containing Escherichia coli B/r.

Weinberger M, Helmstetter CE.

J Bacteriol. 1979 Mar;137(3):1151-7.

43.

A comparison of DNA content between two substrains of Escherichia coli B/r.

Hucul JA, Helmstetter CE.

Biochem Biophys Res Commun. 1978 Feb 28;80(4):970-4. No abstract available.

PMID:
346021
44.

Cell cycle analysis of F'lac replication in Escherichia coli B/r.

Finkelstein M, Helmstetter CE.

J Bacteriol. 1977 Dec;132(3):884-95.

45.

Control of cell division in Escherichia coli: effect of amino acid starvation.

Ron E, Grossman N, Helmstetter CE.

J Bacteriol. 1977 Feb;129(2):569-73.

46.

Chromosome segregation in Escherichia coli B/r at various growth rates.

Pierucci O, Helmstetter CE.

J Bacteriol. 1976 Dec;128(3):708-16.

47.

DNA synthesis during the division cycle of three substrains of Escherichia coli B/r.

Helmstetter CE, Pierucci O.

J Mol Biol. 1976 Apr 15;102(3):477-86. No abstract available.

PMID:
775109
49.

Initiation of chromosome replication in Escherichia coli. II. Analysis of the control mechanism.

Helmstetter CE.

J Mol Biol. 1974 Mar 25;84(1):21-36. No abstract available.

PMID:
4598366
50.

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