Proteomics

Dataset Information

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Proteomic characterization of bacteriophage peptides from mastitis producer Staphylococcus aureus by LC-ESI-MS/MS and their bacteriophage phylogenomic analysis


ABSTRACT: The present work describes LC-ESI-MS/MS analyses of tryptic digestion peptides from phages that infect Staphylococcus aureus-causing mastitis, and isolated from dairy products. A total of 1935 non-redundant peptides belonging to 1282 proteins were identified and analyzed. Among them, 80 staphylococcal peptides from phages were confirmed. These peptides belong to proteins such as phage repressors, structural phage proteins, uncharacterized phage proteins and complement inhibitors. Moreover, of the phage origin peptides found, eighteen of them were specific to S. aureus strains. These diagnostic peptides could be useful for the identification and characterization of S. aureus strains that cause mastitis. Furthermore, a study of bacteriophage phylogeny and the relationship among the identified phage peptides and the bacteria they infect was also performed. The results show the specific peptides which are present in closely related phages, and the existing links between bacteriophage phylogeny and the respective Staphylococcus spp. infected.

INSTRUMENT(S): LTQ Orbitrap

ORGANISM(S): Staphylococcus Aureus

SUBMITTER: Mónica Carrera  

LAB HEAD: Mónica Carrera

PROVIDER: PXD023530 | Pride | 2021-03-25

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
Excel_dataset_in_Supplemental_Data.xlsx Xlsx
SA_280_mcarrera_O1205_190.RAW Raw
SA_286_mcarrera_O1205_188.RAW Raw
SA_41_mcarrera_O1205_343.RAW Raw
SA_507_mcarrera_O1205_345.RAW Raw
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