PXD069646-1

PXD069646 is an original dataset announced via ProteomeXchange.

Title	HDX-MS Study of Conformational Changes in ASK1(269-658) upon H43 Binding
Description	This project investigates the conformational dynamics of the ASK1(269-658) protein fragment and the structural changes induced by its interaction with the small molecule H43. Using hydrogen-deuterium exchange mass spectrometry (HDX-MS), we compared the deuterium uptake profiles of apo ASK1(269-658) and its complex with H43. Samples were prepared with different exchange times (30, 90, 600, and 1800 seconds) in D₂O buffer, quenched, enzymatically digested with immobilized pepsin, and analyzed by LC-MS on a Thermo Orbitrap QE mass spectrometer. Peptide identification was performed using PEAKS Online, and HDX data analysis was conducted with HDExaminer software. The results provide insights into dynamic regions within ASK1(269-658) and reveal ligand-induced conformational changes.
HostingRepository	iProX
AnnounceDate	2025-10-17
AnnouncementXML	Submission_2025-10-20_02:02:06.760.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Xueyuan Zhang
SpeciesList	scientific name: Homo sapiens; NCBI TaxID: 9606;
ModificationList	No PTMs are included in the dataset
Instrument	Q Exactive

Revision	Datetime	Status	ChangeLog Entry
0	2025-10-20 02:01:35	ID requested
⏵ 1	2025-10-20 02:02:07	announced

Dataset with its publication pending

submitter keyword: ASK1, Protein-Ligand Interaction, HDX-MS, Conformational Dynamics.

Fang Bai
contact affiliation	Shanghaitech University
contact email	baifang@shanghaitech.edu.cn
lab head
Xueyuan Zhang
contact affiliation	ShanghaiTech University
contact email	zhangxy14@shanghaitech.edu.cn
dataset submitter

iProX dataset URI