Title : Investigating changes in the gas-phase conformation of Antithrombin III upon binding of Arixtra using traveling wave ion mobility spectrometry (TWIMS).

Pub. Date : 2015 Oct 21

PMID : 26115461






11 Functional Relationships(s)
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1 Investigating changes in the gas-phase conformation of Antithrombin III upon binding of Arixtra using traveling wave ion mobility spectrometry (TWIMS). Fondaparinux serpin family C member 1 Homo sapiens
2 Arixtra is the smallest synthetic Hp containing the specific pentasaccharide sequence required to bind with ATIII. Fondaparinux serpin family C member 1 Homo sapiens
3 Here we report the first travelling wave ion mobility mass spectrometry (TWIMS) investigation of the conformational changes in ATIII induced by its interaction with Arixtra. Fondaparinux serpin family C member 1 Homo sapiens
4 Native electrospray ionization mass spectrometry allowed the gentle transfer of the native topology of ATIII and ATIII-Arixtra complex. Fondaparinux serpin family C member 1 Homo sapiens
5 IM measurements of ATIII and ATIII-Arixtra complex showed a single structure, with well-defined collisional cross section (CCS) values. Fondaparinux serpin family C member 1 Homo sapiens
6 An average 3.6% increase in CCS of ATIII occurred as a result of its interaction with Arixtra, which agrees closely with the theoretical estimation of the change in CCS based on protein crystal structures. Fondaparinux serpin family C member 1 Homo sapiens
7 The effect of collisional activation of ATIII and ATIII-Arixtra complex were also assessed, revealing that the binding of Arixtra provided ATIII with additional stability against unfolding. Fondaparinux serpin family C member 1 Homo sapiens
8 The effect of collisional activation of ATIII and ATIII-Arixtra complex were also assessed, revealing that the binding of Arixtra provided ATIII with additional stability against unfolding. Fondaparinux serpin family C member 1 Homo sapiens
9 The effect of collisional activation of ATIII and ATIII-Arixtra complex were also assessed, revealing that the binding of Arixtra provided ATIII with additional stability against unfolding. Fondaparinux serpin family C member 1 Homo sapiens
10 The effect of collisional activation of ATIII and ATIII-Arixtra complex were also assessed, revealing that the binding of Arixtra provided ATIII with additional stability against unfolding. Fondaparinux serpin family C member 1 Homo sapiens
11 The effect of collisional activation of ATIII and ATIII-Arixtra complex were also assessed, revealing that the binding of Arixtra provided ATIII with additional stability against unfolding. Fondaparinux serpin family C member 1 Homo sapiens