Interrogating membrane protein conformational dynamics within native lipid compositions

…, T Haghighi, H Findlay, Z Ahdash… - Angewandte Chemie …, 2017 - Wiley Online Library
The interplay between membrane proteins and the lipids of the membrane is important for
cellular function, however, tools enabling the interrogation of protein dynamics within native …

Deuteros: software for rapid analysis and visualization of data from differential hydrogen deuterium exchange-mass spectrometry

AMC Lau, Z Ahdash, C Martens, A Politis - Bioinformatics, 2019 - academic.oup.com
… State files contain information including m/z, maximum possible deuterium uptake,
observed deuterium uptake, standard deviation, retention time, and any residue modifications …

[HTML][HTML] Native mass spectrometry goes more native: investigation of membrane protein complexes directly from SMALPs

N Hellwig, O Peetz, Z Ahdash, I Tascón… - Chemical …, 2018 - pubs.rsc.org
Other than more widely used methods, the use of styrene maleic acid allows the direct
extraction of membrane proteins from the lipid bilayer into SMALPs keeping it in its native lipid …

[HTML][HTML] Perturbed structural dynamics underlie inhibition and altered efflux of the multidrug resistance pump AcrB

E Reading, Z Ahdash, C Fais, V Ricci… - Nature …, 2020 - nature.com
… Native mass spectrometry data on a Thermo Scientific Q Exactive UHMR hybrid
Quadrupole-orbitrap mass spectrometer was acquired at resolving power 8750 at m/z 400 in the m/z

[HTML][HTML] Serum albumin binding knob domains engineered within a VH framework III bispecific antibody format and as chimeric peptides

…, C Joyce, M Kuravskiy, K Harrison, Z Ahdash… - Frontiers in …, 2023 - frontiersin.org
… All the spectra were examined and checked visually to ensure correct assignment of m/z
peaks and only peptides with a high signal to noise ratios were used for HDX-MS analysis. …

[HTML][HTML] Structural basis of Cullin 2 RING E3 ligase regulation by the COP9 signalosome

SV Faull, AMC Lau, C Martens, Z Ahdash… - Nature …, 2019 - nature.com
Cullin-Ring E3 Ligases (CRLs) regulate a multitude of cellular pathways through specific
substrate receptors. The COP9 signalosome (CSN) deactivates CRLs by removing NEDD8 …

ATP-induced asymmetric pre-protein folding as a driver of protein translocation through the Sec machinery

RA Corey, Z Ahdash, A Shah, E Pyle, WJ Allen, T Fessl… - Elife, 2019 - elifesciences.org
Transport of proteins across membranes is a fundamental process, achieved in every cell
by the ‘Sec’ translocon. In prokaryotes, SecYEG associates with the motor ATPase SecA to …

The allosteric modulation of complement C5 by knob domain peptides

A Macpherson, M Laabei, Z Ahdash, MA Graewert… - Elife, 2021 - elifesciences.org
… isolation window, CID fragmentation (NCE 28) with fixed first mass of 140.0 m/z, with a
17,500 resolution (at 200 m/z), 1 x 105 AGC target, 200 ms maximum injection time. The source …

LARP4A recognizes polyA RNA via a novel binding mechanism mediated by disordered regions and involving the PAM2w motif, revealing interplay between PABP …

…, R Trotta, S De Tito, P Coleman, Z Ahdash… - Nucleic acids …, 2019 - academic.oup.com
LARP4A belongs to the ancient RNA-binding protein superfamily of La-related proteins (LARPs).
In humans, it acts mainly by stabilizing mRNAs, enhancing translation and controlling …

Mechanistic insight into the assembly of the HerA–NurA helicase–nuclease DNA end resection complex

Z Ahdash, AM Lau, RT Byrne, K Lammens… - Nucleic Acids …, 2017 - academic.oup.com
The HerA–NurA helicase–nuclease complex cooperates with Mre11 and Rad50 to coordinate
the repair of double-stranded DNA breaks. Little is known, however, about the assembly …