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PXD008652-1

PXD008652 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleProteomic Analysis on the Mechanism of Iron-Compensation Substitute for Manganese Deficiency of Streptococcus pneumoniae
DescriptionIron (Fe) and Manganese (Mn) are essential for bacterial survival and virulence as they are involved in catalysis, infection and biofilm formation. The basal metabolism of pathogenic bacteria would be disturbed by the deficiency of metal ions in the host environment. In this study, we found that Streptococcus pneumoniae (S. pneumoniae) can still grow slowly in the medium without manganese ions. Further ICP-MS determination showed that the iron concentration in the bacterium was increased when the manganese content was decreased. The supplement of iron in the manganese deficient culture medium (MDCM) can recovery the bacterial growth. The quantitative proteome using stable-isotope dimethyl labeling was performed to investigate the adaptive growth mechanism of S. pneumoniae in Mn-deficiency condition. Compared with the bacteria cultured in the normal medium, 25 proteins were down-regulated and 54 proteins were up-expressed with more than 1.2-fold alteration (P < 0.05) in S. pneumoniae cultured with MDCM. A large number of depressed proteins are participated in cell energy metabolism, amino acid synthesis process and oxidation products reduction process. The subsequent detection indicated that both intracellar and extracellular hydrogen peroxide levels of in cells were significantly elevated, and the intracellular ATP levels of were evidently decreased in cells cultured in the absence of manganese, meaning that Mn-deficiency can cause multiple metabolic disorders. More importantly, several iron ABC transporters, such as PiuA/PiaA/PitA/SPD_1609, etc, were over-expressed to uptake more iron from the medium. These results suggest that lacking of manganese only disturbed multiple metabolic processes of S. pneumoniae, but also caused the compensatory effect of iron for manganese Mn which is beneficial to the survival of bacteria in extreme environments.
HostingRepositoryPRIDE
AnnounceDate2024-10-07
AnnouncementXMLSubmission_2024-10-07_13:28:45.413.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterKun Cao
SpeciesList scientific name: Streptococcus pneumoniae serotype 2 (strain D39 / NCTC 7466); NCBI TaxID: 373153;
ModificationListN6,N6-dimethyl-L-lysine
InstrumentOrbitrap Fusion Lumos
Dataset History
RevisionDatetimeStatusChangeLog Entry
02018-01-11 01:10:33ID requested
12024-10-07 13:28:46announced
22024-10-22 06:04:26announced2024-10-22: Updated project metadata.
Publication List
Cao K, Lai F, Zhao XL, Wei QX, Miao XY, Ge R, He QY, Sun X, The mechanism of iron-compensation for manganese deficiency of Streptococcus pneumoniae. J Proteomics, 184():62-70(2018) [pubmed]
10.1016/j.jprot.2018.06.004;
Keyword List
curator keyword: Biological
submitter keyword: Manganese Deficiency,Iron-Compensation,Proteomic,Streptococcus pneumoniae
Contact List
Xuesong Sun
contact affiliationKey Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
contact emailtsunxs@jnu.edu.cn
lab head
Kun Cao
contact affiliationJinan university
contact emailhongyibaixue@126.com
dataset submitter
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