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Differential impact of phosphate availability on primary and specialized metabolism of Streptomyces lividans and Streptomyces coelicolor.

ABSTRACT: In order to define the impact of phosphate (Pi) availability on cellular metabolism the project aimed to perform a comparative analysis of the proteomes of two Streptomyces strains with different abilities to produce antibiotics, S. coelicolor and S. lividans as well as of the pptA mutant of S. lividans, grown low (1mM) and high (5mM) phosphate (Pi) availability conditions. Interestingly, in contrast to most Streptomyces species, S. coelicolor produces more antibiotics in Pi proficiency than in Pi limitation, S. lividans does not produce antibiotics in any Pi conditions and the pptA mutant produces antibiotics only in Pi limitation. This in-depth proteomic comparison of three Streptomyces strains (S. coelicolor, S. lividans wt and pptA mutant), in different growth conditions (time and Pi concentration in the medium) was performed on four biological replicates. Protein abundance changes were determined using two label-free mass spectrometry based-quantification methods: spectral count (SC) and MS1 ion intensities named XIC (for eXtracted Ion Current). Our proteomic data reveal for the first time, the impact of Pi availability on the abundance of approximately 4000 proteins of these Streptomyces strains with different abilities to produce antibiotics. The most striking feature differentiating these strains was the much higher abundance of enzymes of the respiratory chain in both phosphate conditions in S. coelicolor compared to the S. lividans strains.

INSTRUMENT(S): timsTOF Pro

ORGANISM(S): Streptomyces Coelicolor Streptomyces Lividans Tk24

TISSUE(S): Spore

SUBMITTER: David Cornu

LAB HEAD: Marie-Joelle Virolle

PROVIDER: PXD029263 | Pride | 2022-02-04

REPOSITORIES: Pride

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			Action	DRS
	F062948.mzid.gz	Mzid
	F062949.mzid.gz	Mzid
	F062950.mzid.gz	Mzid
	F062958.mzid.gz	Mzid
	F062959.mzid.gz	Mzid

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