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Comparative expression analysis between CRP (TTHA1437) deletion mutant and wild-type of T. thermophilus HB8

ABSTRACT: We observed the expression profile of the total mRNA of crp (TTHA1437) deletion mutant of Thermus thermophilus HB8 strain grown in a rich (TT) medium at 70oC compared with that of wild type. Keywords: cell type comparison Three wild-type and mutant T. thermophilus HB8 strains were each pre-cultured at 70oC for 16 h in 3 ml of TT medium containing 0.8% polypeptone, 0.4% yeast extract, 0.2% NaCl, 0.4 mM CaCl2, and 0.4 mM MgCl2, which was adjusted to pH 7.2 with NaOH. The cells (2 ml) were inoculated into 1 liter of the same medium and then cultivated at 70oC. Cells were collected after 6 h and 8 h, and then crude RNA was extracted. In order to compare mRNA expression in the crp (TTHA1437) deletion mutant with that of wild type, the expression of each mRNA at each time point was analyzed on a GeneChip as described under Sample Description Sheet of each sample in this website.

ORGANISM(S): Thermus thermophilus HB8

SUBMITTER: Akeo Shinkai

PROVIDER: E-GEOD-7166 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Transcription activation mediated by a cyclic AMP receptor protein from Thermus thermophilus HB8.

Shinkai Akeo A Kira Satoshi S Nakagawa Noriko N Kashihara Aiko A Kuramitsu Seiki S Yokoyama Shigeyuki S

Journal of bacteriology 20070316 10

The extremely thermophilic bacterium Thermus thermophilus HB8, which belongs to the phylum Deinococcus-Thermus, has an open reading frame encoding a protein belonging to the cyclic AMP (cAMP) receptor protein (CRP) family present in many bacteria. The protein named T. thermophilus CRP is highly homologous to the CRP family proteins from the phyla Firmicutes, Actinobacteria, and Cyanobacteria, and it forms a homodimer and interacts with cAMP. CRP mRNA and intracellular cAMP were detected in this ...[more]

PMID: 17369302

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Project description:We observed the expression profile of the total mRNA of crp (TTHA1437) deletion mutant of Thermus thermophilus HB8 strain grown in a rich (TT) medium at 70 degC Three crp-deletion mutant T. thermophilus HB8 strains were each pre-cultured at 70 degC for 16 h in 3 ml of TT medium containing 0.8% polypeptone, 0.4% yeast extract, 0.2% NaCl, 0.4 mM CaCl2, and 0.4 mM MgCl2, which was adjusted to pH 7.2 with NaOH. The cells (2 ml) were inoculated into 1 liter of the same medium and then cultivated at 70 degC. Cells were collected after 6 h and 8 h, and then crude RNA was extracted. The expression of mRNA at each time point was analyzed on a GeneChip as described under Sample Description Sheet of each sample in this website.

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