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ProteomicsCyclic immonium ion of lactyllysine reveals widespread lactylation in the human proteome
Here we employed a non-enzymatic chemical labeling approach to introduce lactylation on lysine residues of model peptides and proteins. Tandem MS acquisition of lactylated peptide carriers on different MS platforms unequivocally led us to note an intense peak corresponding to the “cyclic” immonium ...
ORGANISM(S): Homo Sapiens 
2021-09-15 | PXD028488 |
ProteomicsLeveraging immonium ions for identifying and targeting acyl-lysine modifications in proteomic datasets
Acyl modifications vary greatly in terms of elemental composition and site of protein modification. Developing methods to identify these modifications more confidently can help assess the scope of these modifications in large proteomic datasets. Herein we analyze the utility of acyl-lysine immonium ...
ORGANISM(S): Bos taurus (Bovine) Homo sapiens (Human) 
2020-09-09 | PXD018758 | Pride
Stepped collision energy Lysine acylation Immonium ion 3-hydroxypimelylation Lysine acetylation Bsa Lc-ms/ms 
UnknownLeveraging Immonium Ions for Targeting Acyl-Lysine Modifications in Proteomic Datasets.
Not available
S-EPMC8742405 | biostudies-literature
UnknownQuantification of the compositional information provided by immonium ions on a quadrupole-time-of-flight mass spectrometer.
Not available
S-EPMC2638499 | biostudies-literature
UnknownStepped collisional energy improves protein acylation identification by eliminating positional bias of cyclic immonium ions.
Not available
S-EPMC12800203 | biostudies-literature
UnknownThe proline effect and the tryptophan immonium ion assist in de novo sequencing of adipokinetic hormones.
Not available
S-EPMC10322821 | biostudies-literature
ProteomicsAccurate and Fast Protein Acylation Identification by Eliminating Position Effects of Cyclic Immonium Ions with Stepped HCD
Cyclic immonium (CycIm) ions serve as invaluable diagnostic markers for lysine acylations, yet the principles governing their generation efficiency are poorly understood. Here, we systematically investigate this question and uncover a robust "position effect": the generation of immonium-type ions is...
ORGANISM(S): Homo Sapiens 
2025-07-02 | PXD065707 |
UnknownInfrared multiphoton dissociation of peptide cations in a dual pressure linear ion trap mass spectrometer.
Not available
S-EPMC2774747 | biostudies-literature
UnknownUltrafast ultraviolet photodissociation at 193 nm and its applicability to proteomic workflows.
Not available
S-EPMC2917496 | biostudies-literature
UnknownProteomic analyses using Grifola frondosa metalloendoprotease Lys-N.
Not available
S-EPMC2798736 | biostudies-literature
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