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MetabolomicsPlant elicitor peptide signalling confers rice resistance to piercing-sucking insect herbivores and pathogens
Rice is a staple food crop worldwide, and its production is severely threatened by phloem-feeding insect herbivores, particularly the brown planthopper (BPH, Nilaparvata lugens), and destructive pathogens. Despite the identification of many BPH resistance genes, the molecular basis of rice resistanc...
2022-02-23 | MTBLS3518 | MetaboLights
MetabolomicsMolecular networking coupled to high-resolution mass spectrometry fragmentation reveals a multitude of urinary antihypertensive drug metabolites
Mass spectrometry is the current technique of choice in studying drug metabolism. High-resolution mass spectrometry (HR-MS) in combination with fragment analysis (MS/MS) has the potential to contribute to rapid advances in this field. However, the data emerging from such fragmentation spectra pose c...
2016-05-23 | MTBLS307 | MetaboLights
MetabolomicsApplication of the Protease-Resistant Antimicrobial Peptide R7I, Composed of Natural Amino Acids, as a Functional Food Ingredient for Modulating Intestinal Health

Foodborne pathogenic bacterial infections pose significant challenges to global food safety and public health, while the issue of antimicrobial resistance (AMR) has worsened in recent years, creating an urgent need for safe, natural alternatives to combat foodborne pathogens and associated intest...

2025-11-09 | MTBLS13292 | MetaboLights
ProteomicsStability of peptide fragmentation patterns
Our study aims to determine the stability of fragmetnation patterns of peptides upon collision-induced dissociation (CID). Recent studies reported that for a minority of peptides, CID fragmentation leads to non-reproducible fragmentation spectra and therefore impaired identification. In order to stu...
ORGANISM(S): Homo sapiens (Human) 
2019-02-25 | PXD006691 | Pride
Peptide fragmentation Peptide identification Collision-induced dissociation Tandem ms 
MetabolomicsThe genetic origin of evolidine, the first cyclopeptide discovered in plants, and related orbitides

Cyclic peptides are reported to have antibacterial, antifungal and other bioactivities. Orbitides are a class of cyclic peptide that are small, head-to-tail cyclized, composed of proteinogenic amino acids, and lack disulfide bonds; they are also known in several genera of the plant family Rutacea...

2020-10-14 | MTBLS1963 | MetaboLights
ProteomicsFinding and using Diagnostic Ions in Collisional Induced Crosslinked Peptide Fragmentation Spectra
Crosslinking mass spectrometry (XL-MS) has emerged as a powerful tool in its own right for the investigation of protein structures and interactions. Utilizing standard shotgun MS mass spectrometry equipment and specialized database search software, crosslinked peptide-pairs can be identified and dir...
ORGANISM(S): Bos taurus (Bovine) 
2019-07-16 | PXD013083 | Pride
Xlinkx Crosslinking mass spectrometry Gas phase fragmentation of crosslinks 
TranscriptomicsThe antimicrobial peptide-sensing system aps of Staphylococcus aureus
Staphylococcus aureus is a leading cause of hospital-associated infections. In addition, highly virulent strains of methicillin-resistant S. aureus (MRSA) are currently spreading outside health care settings. Survival in the human host is largely defined by the ability of S. aureus to resist mechani...
ORGANISM(S): Staphylococcus aureus 
2008-04-06 | E-GEOD-8400 | biostudies-arrayexpress
ProteomicsMirroring the charged termini; ETD/HCD fragmentation characteristics of LysargiNase and tryptic peptides and their benefits for peptide sequencing in proteomics
A key step in proteomics is the digestion of proteins into peptides, so far largely done by using trypsin. Tryptic digestion leads to peptides that in ESI-MS attain predominantly two charges, via protonation at the free N-terminus and at the C-terminal basic residue Arginine or Lysine. These peptide...
ORGANISM(S): Homo sapiens (Human) 
2016-12-02 | PXD004447 | Pride
Fragmentation Etd Hcd Lysarginase Orbitrap Phosphoproteomics Trypsin 
TranscriptomicsTranscriptional response of Pseudomonas aeruginosa PAO1 to human host defense peptide LL-37
In this experiment the transcriptional response of the opportunistic human pathogen Pseudomonas aeruginosa towards physiological concentrations of the major human host defense peptide LL-37 was investigated using microarrays. To this aim, three independent cultures of P. aeruginosa PAO1 were grown u...
ORGANISM(S): Pseudomonas aeruginosa 
2013-12-20 | E-MEXP-3970 | biostudies-arrayexpress
TranscriptomicsRNA sequencing of HEK293T cells expressing peptide 9J10, a 14-3-3 interacting peptide
We investigated the transcriptome profile of HEK293T cells transfected with a plasmid encoding 9J10, a peptide isolated in a phenotypic screen from a library of peptides derived from bacterial and archaeal genomes. The peptide was identified in a screen for FOXO3a reactivation and has been shown to...
ORGANISM(S): Homo sapiens 
2021-05-28 | E-MTAB-10161 | biostudies-arrayexpress
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