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ProteomicsDenaturing and native top-down venomics: Mapping proteoforms and protein complexes from king cobra venom
Characterizing whole proteins by top-down proteomics avoids a step of inference encountered in the dominant bottom-up methodology when peptides are assembled computationally into proteins for identification. The direct interrogation of whole proteins and protein complexes from the venom of Ophiophag...
ORGANISM(S): Ophiophagus hannah (King cobra) (Naja hannah) 
2016-05-18 | PXD003403 | Pride
King cobra venom Top-down proteomics Proteoforms Native mass spectrometry Protein complexes 
ProteomicsTowards a universal sample preparation method for denaturing top-down proteomics of complex proteomes
A universal and standardized sample preparation method becomes vital for denaturing top-down proteomics (dTDP) to advance the scale and accuracy of proteoform delineation in complex biological systems. It needs to have high protein recovery, minimum bias, good reproducibility, and compatibility with...
ORGANISM(S): Homo sapiens (Human) Escherichia coli 
2020-05-22 | PXD018248 | Pride
Histone Ptms Membrane ultrafiltration Chloroform-methanol precipitation Membrane proteins Sp3 Denaturing top-down proteomics Cze-ms/ms Sds Sample preparation 
UnknownMapping Proteoforms and Protein Complexes From King Cobra Venom Using Both Denaturing and Native Top-down Proteomics.
Not available
S-EPMC4937514 | biostudies-literature
ProteomicsSelf-packed size-exclusion columns enable versatile high-throughput native, top-down, and ion-mobility-mass spectrometry studies on proteins and complexes.
Native MS (nMS) is a key structural biology technique that makes it possible to study intact proteins and their interactions. Unfortunately, non-volatile salts are incompatiblewith nMS, which demands a laborious desalting procedure. Non-denaturing size exclusion chromatography (SEC) allows both rapi...
ORGANISM(S): Bos taurus (Bovine) Candida albicans (Yeast) Homo sapiens (Human) Escherichia coli Gallus gallus (Chicken) Equus caballus (Horse) 
2025-06-29 | PXD061452 | Pride
Ligand screening Top-down proteomics Native mass spectrometry Size-exclusion chromatography Protac Ion mobility 
UnknownToward a Universal Sample Preparation Method for Denaturing Top-Down Proteomics of Complex Proteomes.
Not available
S-EPMC7542658 | biostudies-literature
UnknownTargeted analysis of recombinant NF kappa B (RelA/p65) by denaturing and native top down mass spectrometry.
Not available
S-EPMC4633404 | biostudies-literature
ProteomicsCharacterization of a monoclonal antibody by native and denaturing top-down mass spectrometry
Analysis of trastuzumab through both denaturing and native top-down proteomics
ORGANISM(S): Homo Sapiens (ncbitaxon:9606) 
2024-05-26 | MSV000094874 | MassIVE
ProteomicsCapillary Zone Electrophoresis-Electron-Capture Collision-Induced Dissociation on a Quadrupole Time-of-Flight Mass Spectrometer for Top-Down Characterization of Intact Proteins
Mass spectrometry (MS)-based denaturing top-down proteomics (dTDP) requires high-capacity separation and extensive gas-phase fragmentation of proteoforms. Herein, we coupled capillary zone electrophoresis (CZE) to electron-capture collision-induced dissociation (ECciD) on an Agilent 6545 XT quadrupo...
ORGANISM(S): Bos taurus (Bovine) Equus caballus (Horse) 
2023-01-05 | PXD030373 | Pride
Electron-capture collision-induced dissociation Top-down Capillary zone electrophoresis 
ProteomicsStructural O-Glycoform Heterogeneity of the SARS-CoV-2 Spike Protein Receptor-Binding Domain Revealed by Top-Down Mass Spectrometry
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) utilizes an extensively glycosylated surface spike (S) protein to mediate host cell entry and the S protein glycosylation plays key roles in altering viral binding/function and infectivity. However, the molecular structures and glycan hete...
ORGANISM(S): Homo Sapiens (ncbitaxon:9606) 
2021-07-27 | MSV000087891 | MassIVE
ProteomicsExploring Top-Down Mass Spectrometric Approaches To Probe Forest Cobra (Naja melanoleuca) Venom Proteoforms
Three main top-down mass spectrometry methodologies were employed in a proof-of-concept study to characterise selected three finger toxins and phospholipase A2 toxins from the forest cobra (Naja melanoleuca) venom. The novel utility of data-independent acquisition, alternative hybrid ECD-CID fragmen...
ORGANISM(S): Naja melanoleuca 
2024-09-05 | PXD052561 | Pride
Ecd-cid fragmentation Proteoforms Top-down proteomics Cyclic ion mobility Snake venom Data-independent acquisition 
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