Name: Updating the Proteome of the uncultivable hemotrophic Mycoplasma suis in experimentally infected pigs
Keywords: Mycoplasma suis

Dataset Information

Updating the Proteome of the uncultivable hemotrophic Mycoplasma suis in experimentally infected pigs

ABSTRACT: Mycoplasma suis belongs to the hemotrophic mycoplasma (HM) that are associated with acute and chronic anemia in a wide range of livestock and wild animals. The inability to culture HMs in vitro has hindered their characterization at the molecular level. Although genome sequences of eight HMs are available, there is only one study based on genome sequenced data on the proteomic level for HMs, namely M. suis. In the present work, the proteome of M. suis strain KI_3806 during acute infection was extended significantly by applying three different protein extraction methods, 1D SDS-PAGE and LC-MS/MS. A total of 404 of the 795 M. suis KI_3806 proteins (50.8%) of all encoded proteins were identified. Data analysis revealed the expression of 83.7% of the predicted ORFs with assigned functions but also highlights the expression of 179 of 523 (34.2%) hypothetical proteins with unknown functions. Computational analyses identified expressed membrane-associated hypothetical proteins that might be involved in adhesion or host-pathogen interaction. Furthermore, analyses of the expressed transporters indicated the existence of a hexose-6-phosphate-transporter and an ECF transporter. In conclusion, our proteome study provides a further step toward the elucidation of the unique life cycle of M. suis and the establishment of an in vitro culture.

INSTRUMENT(S): LTQ Orbitrap Elite

ORGANISM(S): Mycoplasma Suis (strain Ki_3806) Sus Scrofa Domesticus (domestic Pig)

TISSUE(S): Blood

DISEASE(S): Anemia

SUBMITTER: Christian Lassek

LAB HEAD: Ludwig E. Hölzle

PROVIDER: PXD002294 | Pride | 2015-12-17

REPOSITORIES: Pride

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Publications

Updating the proteome of the uncultivable hemotrophic Mycoplasma suis in experimentally infected pigs.

Dietz Stefanie S Lassek Christian C Mack Sarah-Lena SL Ritzmann Mathias M Stadler Julia J Becher Dörte D Hoelzle Katharina K Riedel Katharina K Hoelzle Ludwig E LE

Proteomics 20160201 4

Mycoplasma suis belongs to the hemotrophic mycoplasmas that are associated with acute and chronic anemia in a wide range of livestock and wild animals. The inability to culture M. suis in vitro has hindered its characterization at the molecular level. Since the publication of M. suis genome sequences in 2011 only one proteome study has been published. Aim of the presented study was to significantly extend the proteome coverage of M. suis strain KI_3806 during acute infection by applying three di ...[more]

PMID: 26678042

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Project description:Carbon dioxide (CO2) sensing, transport, and metabolism play a pivotal role in survival and proliferation of pathogenic microbes infecting human host from natural environments due to the drastic difference of CO2 levels. Carbonic anhydrases (CAs) are not only key CO2-metabolic enzymes catalyzing reversible interconversion between CO2 and bicarbonate (HCO3-), but also important CO2-signaling modulators. Cryptococcus neoformans that causes fatal fungal meningitis contains two functional CAs, Can1 and Can2, among which Can2 plays essential roles for growth and sexual differentiation of the pathogen. However, downstream genes and signaling network regulated by CAs have not been studied thus far. In this study, we constructed a C. neoformans strain where CAN2 expression is controlled by the CTR4 (copper transporter) promoter and elucidated its transcriptome patterns by using DNA microarray analysis to elucidate downstream target genes of Can2. Expectedly, the CAN2 promoter replacement strain showed growth defects in a CO2-dependent manner when CAN2 is repressed. The CA-transcriptome analysis discovered a number of Can2-dependent genes, including those involved in fatty acid biosynthesis (FAS1), sexual differentiation (GPB1), capsule structure organization (CAS3), iron-metabolism (CFO2), and a number of stress-regulated genes, including an oxidative stress-responsive Atf1 transcription factor, although a majority of them do not have any orthologs in other fungi. The present study revealed other roles of Atf1 in capsule and melanin production and diverse stress responses, including thermotolerance and antifungal drug resistance, of C. neoformans. This study provides further insights into the signaling network of CA/CO2-sensing pathway in pathogenic fungi. 17 slides are used in this analysis, 3 or 2 biological replicate experiments are performed, total RNAs are extracted from 2 strains (H99 Wild type strain, CTR4::CAN2) at 2 time points (0hr time, 12hr time) in 2 conditions (BCS, CuSO4). We use the mixed all of total RNAs from this experiment as a control RNA. We use Cy5 as Sample dye and Cy3 as a control dye. Several experiment samples are dye swaped.

Dataset Information

Updating the Proteome of the uncultivable hemotrophic Mycoplasma suis in experimentally infected pigs

Publications

Updating the proteome of the uncultivable hemotrophic Mycoplasma suis in experimentally infected pigs.

Similar Datasets

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