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ProteomicsSelective enrichment of N-terminal proline peptides via hydrazide chemistry for proteomics analysis
A challenge for shotgun proteomics is the identification of low abundance proteins, which is always hampered owing to the extreme complexity of protein digests and highly dynamic concentration range of proteins. To reduce the complexity of the peptide mixture, we developed a novel method to selectiv...
ORGANISM(S): Homo Sapiens 
2021-10-18 | PXD029178 |
ProteomicsEnzyme and Chemical Assisted N-Terminal Blocked Peptides Analysis, ENCHANT, as a Selective Proteomics Approach Complementary to Conventional Shotgun Approach
Shotgun (bottom-up) approach has been widely applied in large-scale proteomics studies. The inherent shortages of shotgun approach lie in that the generated peptides often overwhelm the analytical capacity of current LC-MS/MS systems and that abundant proteins often hamper the identification of prot...
ORGANISM(S): Homo sapiens (Human) 
2017-11-30 | PXD007863 | Pride
Dia Single-charge ion inclusion N-terminal blocked peptides Cnbr-activated sepharose 4b 
MetabolomicsCharacterization of active peptides derived from three leeches and comparison of their anti-thrombotic mechanisms using the tail vein thrombosis model in mice and metabonomics

BACKGROUND AND AIMS: The increasing incidence of cardiovascular diseases has created an urgent need for safe and effective anti-thrombotic agents. Leech, as a traditional Chinese medicine, has the effect of promoting blood circulation and removing blood stasis, but its real mater...

2024-01-18 | MTBLS9306 | MetaboLights
ProteomicsChemical proteomics profiling of N-terminal and lysine acetyltransferases
Acetylation of amino groups is a prevalent protein modification in all kingdoms of life. Acetyl groups are transferred from Coenzyme A (CoA) to protein N-termini and lysine side chains by N-terminal acetyltransferases (NATs) and lysine acetyltransferases (KATs), respectively. Building on lysine-CoA ...
ORGANISM(S): Homo Sapiens (human) 
2021-04-14 | PXD018544 | JPOST Repository
ProteomicsN-terminal acetylome analysis reveals an expanded substrate profile for the NatC N-terminal acetyltransferase complex in yeast
N-terminal acetylation is a conserved protein modification among eukaryotes, and the yeast Saccharomyces cerevisiae is a valuable model system for studying this modification. The enzymes responsible for the bulk of protein N-terminal acetylation in S. cerevisiae are the N-terminal acetyltransferases...
ORGANISM(S): Saccharomyces cerevisiae (Baker's yeast) 
2023-01-26 | PXD039544 | Pride
Natc N-terminal acetylation N-alpha-acetyltransferase 30 (naa30) Saccharomyces cerevisiae N-terminal acetylome N-terminal cofradic N-terminomics. 
ProteomicsInvestigating peptide-Coenzyme A-conjugates as chemical probes for proteomic profiling of N-terminal and lysine acetyltransferases
Acetyl groups are transferred from Acetyl-Coenzyme A (Ac-CoA) to protein N-termini and lysine side chains by N-terminal acetyltransferases (NATs) and lysine acetyltransferases (KATs), respectively. Building on lysine-CoA conjugates as KAT probes, we have synthesized peptide probes with CoA conjugate...
ORGANISM(S): Homo Sapiens (human) 
2022-05-02 | PXD032957 | JPOST Repository
ProteomicsOne-step N-terminomics based on isolation of protein N-terminal peptides from LysargiNase digests by tip-based strong cation exchange chromatography
Large-scale isolation of protein N-terminal peptides from LysargiNase digests was achieved by one-step strong cation exchange chromatography with disposable and parallel-processable pipette-tip columns. Novel cleavage sites for signal or transit peptides and non-canonical translation initiation site...
ORGANISM(S): Homo Sapiens (human) 
2024-08-13 | PXD048917 | JPOST Repository
ProteomicsMetabolic regulation of N-terminal acetylation in yeast
N-terminal (Nt) acetylation, catalyzed by N-terminal acetyltransferases (NATs), has emerged as an important co-translational modification in eukaryotes, and involves the transfer of the acetyl moiety from acetyl-CoA (Ac-CoA) to the α-amino group of a nascent polypeptide. Here, we report the first gl...
ORGANISM(S): Saccharomyces cerevisiae (Baker's yeast) 
2018-09-07 | PXD004326 | Pride
Metabolism Acetyl coenzyme a Saccharomyces cerevisiae N-terminal acetylation N-terminomics 
ProteomicsPositional proteomics reveals differences in N-terminal proteoform stability.
To understand the impact of alternative translation initiation on a proteome, we performed the first large-scale study of protein turnover rates in which we distinguish between N-terminal proteoforms pointing to translation initiation events. Using pulsed SILAC combined with N-terminal COFRADIC we m...
ORGANISM(S): Homo sapiens (Human) 
2013-03-14 | PXD002091 | Pride
Nt-acetylation Protein stability Alternative translation initiation Initiator methionine processing Protein turnover N-terminal proteoform Human N-terminal cofradic 
ProteomicsN-terminal COFRADIC on cytosolic proteins of HEK293T cells - UniProt search
N-terminal proteoforms stem from the same gene but differ at their N-terminus, and most of these are found to be truncated, though some are N-terminally extended caused by ribosomes starting translation from codons in the annotated 5’UTR, and/or carry modified N-termini different from those of the c...
ORGANISM(S): Homo sapiens (Human) 
2023-06-08 | PXD039392 | Pride
Cytosol Hek293t cells N-terminal peptides 3 proteases Cofradic Atis Lc-ms/ms 
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