: It is considered a universal strategy because it can identify N-acetyl modifications on RNA, DNA, proteins, and glycans .
For further technical details, the full study is available through the ACS Sensors journal . NinaHD
"NINAHD" (often stylized as ) refers to Nanopore Identification of N-Acetylation by Hydroxylamine Deacetylation . It is a universal chemical sensing strategy published in ACS Sensors in March 2024 to identify N-acetyl modifications on various biomacromolecules. Overview of NINAHD : It is considered a universal strategy because
: The method uses hydroxylamine to treat N-acetylation, which produces acetohydroxamic acid (AHA) . This AHA molecule then serves as a "reporter" that is specifically sensed by a modified protein nanopore (PBA-modified MspA). It is a universal chemical sensing strategy published
: It can be used for disease-related research, such as analyzing cellular RNA acetylation or detecting modifications in biological samples like histones. There is also potential for it to be adapted for portable point-of-care testing. Technical Components Hydroxylamine Reagent used for the selective deacetylation process. AHA (Acetohydroxamic acid) The chemical reporter produced during the reaction. PBA-modified MspA The specific nanopore sensor engineered to detect AHA.
: Unlike traditional analytical methods like mass spectrometry, NINAHD does not require the translocation or unfolding of large molecules, allowing it to identify modifications even on proteins too large to pass through the pore.