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Morphological differentiation and secondary metabolism responses of Streptomyces coelicolor A3(2) to simulated microgravity based on comparative transcriptomics.

ABSTRACT: In order to gain a better understanding of the effects of Streptomyces coelicolor A3(2) wild type strain exposed to simulated microgravity condition by clinorotation, we constructed a whole genome microarray to screen simulated microgravity sensitive genes using the Agilent eArray 5.0 program. The genechip was custom designed according to the manufacturerM-bM-^@M-^Ys recommendations (Agilent, 8*15K). The genome sequences were downloaded from: http://www.ncbi.nlm.nih.gov/genome?Db =genome&Cmd = Search&Term = NC_003888, NC_003903.1, NC_003904.1. Each gene was represented by one 60-nt oligonucleotide probe, and 680 genes associated with morphological differentiation and secondary metabolism out of the total 8116 genes were replicated 9 times each. Cells of Streptomyces coelicolor A3(2) wild type strain were harvested from the colonies grown in JCM42 agar medium at 28M-BM-0C for 96h (4d) under simulated microgravity and 1g control conditions. Total RNA was extracted to conduct the microarray hybridization experiments. Three independent experiments were performed in which ASM_1A, ASM_2A, ASM_3A were the test group samples and ANG_1A, ANG_2A, ANG_3A were the control group samples. Differentially expressed genes were selected with PM-oM-

ORGANISM(S): Streptomyces coelicolor A3(2)

SUBMITTER: Huang Bing

PROVIDER: E-GEOD-53748 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Project description:In order to gain a better understanding of the effects of Streptomyces coelicolor A3(2) wild type strain exposed to simulated microgravity condition by clinorotation, we constructed a whole genome microarray to screen simulated microgravity sensitive genes using the Agilent eArray 5.0 program. The genechip was custom designed according to the manufacturer’s recommendations (Agilent, 8*15K). The genome sequences were downloaded from: http://www.ncbi.nlm.nih.gov/genome?Db =genome&Cmd = Search&Term = NC_003888, NC_003903.1, NC_003904.1. Each gene was represented by one 60-nt oligonucleotide probe, and 680 genes associated with morphological differentiation and secondary metabolism out of the total 8116 genes were replicated 9 times each. Cells of Streptomyces coelicolor A3(2) wild type strain were harvested from the colonies grown in JCM42 agar medium at 28°C for 144h (6d) under simulated microgravity (by a rotating clinostat) and 1g control conditions respectively. Total RNA was extracted to conduct the microarray hybridization experiments for two color (Cy3/Cy5).

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