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Identification of differentially expressed proteins during the fermentation of Saccharopolyspora erythraea

ABSTRACT: At selected timepoints during the S erythrea fermentation process, samples of fermentation broth were collected. Proteins in the samples were separated by 2D-PAGE and differentially expressed proteins were identified by LC-MS/MS.

INSTRUMENT(S): LTQ Orbitrap Velos

ORGANISM(S): Saccharopolyspora Erythraea (streptomyces Erythraeus)

TISSUE(S): Cell Suspension Culture, Permanent Cell Line Cell

SUBMITTER: Marko Fonovic

LAB HEAD: dr. Marko Fonovic

PROVIDER: PXD002677 | Pride | 2016-05-26

REPOSITORIES: Pride

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Dataset's files

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			Action	DRS
	E1.msf	Msf
	E1.msf-pride.pride.mgf.gz	Mgf
	E1.msf-pride.pride.mztab.gz	Mztab
	E1.msf-pride.xml.gz	Xml
	E1.raw	Raw

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Publications

Integrated omics approaches provide strategies for rapid erythromycin yield increase in Saccharopolyspora erythraea.

Karničar Katarina K Drobnak Igor I Petek Marko M Magdevska Vasilka V Horvat Jaka J Vidmar Robert R Baebler Špela Š Rotter Ana A Jamnik Polona P Fujs Štefan Š Turk Boris B Fonovič Marko M Gruden Kristina K Kosec Gregor G Petković Hrvoje H

Microbial cell factories 20160603

<h4>Background</h4>Omics approaches have significantly increased our understanding of biological systems. However, they have had limited success in explaining the dramatically increased productivity of commercially important natural products by industrial high-producing strains, such as the erythromycin-producing actinomycete Saccharopolyspora erythraea. Further yield increase is of great importance but requires a better understanding of the underlying physiological processes.<h4>Results</h4>To ...[more]

PMID: 27255285

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Identification of multiple transferrin species in spleen from mice with collagen-induced arthritis which may reflect changes in transferrin glycosylation associated with the disease activity. Role of CD38

Project description:Collagen type II-induced arthritis (CIA) is an autoimmune disease that is accompanied by a complex host systemic response, which includes inflammatory and autoimmune reactions. Since to develop CIA is required the injection of antigen in complete Freund’s adjuvant (CFA), which is a water-in-mineral-oil emulsion containing killed Mycobacteria, systemic response proteins related with inflammation can confound the detection or diagnosis of arthritis. CIA in CD38 deficient mice (CD38 KO) is milder than that in C57BL/6 (B6 WT) mice. Protein extracts from spleen were subjected to 2D-DiGE and MS-MALDI-TOF/TOF analysis to identify proteins that were differentially expressed in CD38 KO and B6 WT mice with arthritis, with inflammation, or non-immunized. Differential protein expression was validated by ELISA, or Western-blotting.

2015-12-10 | PXD002644 | Pride

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Distinct Serum Proteome Profiles Associated with Collageninduced Arthritis, and Complete Freund’s Adjuvant-induced Inflammation in CD38-/- mice: the Discriminative Power of Protein Species or Proteoforms

Project description:Collagen-type-II-induced arthritis (CIA) is an autoimmune disease, which involves a complex host systemic response including inflammatory and autoimmune reactions. CIA in C57BL/6 mice resembles human rheumatoid arthritis (RA) in terms of its disease course, histological findings, and in its response to commonly used anti-arthritic drugs. In this study, the goal has been to identify proteins from serum that change in their abundance in CD38-KO versus WT mice which may reflect their distinct response to an antigen-challenge that induces the development of an autoimmune disease. CIA is milder in CD38-/- than in Wild-type (WT) mice. We analyzed the sera from CD38-/- versus WT mice either with arthritis (CIA+), with no arthritis (CIA-), or with inflammation (Complete Freund’s adjuvant (CFA)-treated mice). To decrease the dynamic concentration range of serum a combinatorial ligand library composed of hexapeptides was used (called ProteoMiner). ProteoMiner-equalized serum samples were then subjected to 2D-DiGE and MS-MALDI-TOF/TOF analyses to identify proteins that changed in their relative abundances. Multivariate analyses revealed that a multi-protein signature (n = 28) was able to discriminate CIA+ from CIA- mice, and WT from CD38-/- mice within each condition. Likewise, a distinct multi-protein signature (n = 16) was identified which differentiated CIA+ CD38-/- mice from CIA+ WT mice, and lastly, a third multi-protein signature (n = 18) indicated that CD38-/- and WT mice could be segregated in response to CFA treatment This approach allows the identification of multiple protein species, or proteoforms of a given protein in a single analysis, and therefore, to focus the interest in fully characterize just the protein species that differ in abundance.

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