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Studies of extremely dense matter in heavy-ion collisions at J-PARC
Elsevier 2019 Nuclear physics. A Vol.982 No.-
<P><B>Abstract</B></P> <P>We aim to study extremely dense matter in heavy-ion collisions at 1 −19 AGeV/c at a future project of J-PARC (J-PARC-HI). We will search for the first order phase boundary and its critical end point in the QCD phase diagram. We also aim at studying the properties of dense matter related to neutron stars and neutron star mergers, in particular the equation of state (EOS). We expect to produce the world's highest rate of 10<SUP>11</SUP>Hz of heavy-ion beams, with ion species from p to U. We design spectrometers based on a large dipole magnet to measure hadrons, dimuons, and hypernuclei. We evaluate some of key performance of the spectrometers based on detailed simulations.</P>
An alternative spliced mouse presenilin-2 mRNA encodes a novel γ-secretase inhibitor
Suzuki, Y.,Ohta, K.,Itoh, M.,Sakoh-Sumitomo, Y.,Mitsuda, T.,Ueda, M.,Hayakawa-Yano, Y.,Li, S.,Hida, Y.,Inuzuka, T.,Jung, Y.K.,Nakagawa, T. North-Holland Pub ; Elsevier Science Ltd 2009 FEBS letters Vol.583 No.9
The γ-secretase, composed of presenilin-1 (PS1) or presenilin-2 (PS2), nicastrin (NCT), anterior pharynx-defective phenotype 1 (APH-1), and PEN-2, is critical for the development of Alzheimer's disease (AD). PSs are autoproteolytically cleaved, producing an N-terminal fragment (NTF) and a hydrophilic loop domain-containing C-terminal fragment. However, the role of the loop domain in the γ-secretase complex assembly remains unknown. Here, we report a novel PS2 isoform generated by alternative splicing, named PS2β, which is composed of an NTF with a hydrophilic loop domain. PS2β disturbed the interaction between NCT and APH-1, resulting in the inhibition of amyloid-β production. We concluded that PS2β may inhibit γ-secretase activity by affecting the γ-secretase complex assembly. Structured summary: MINT-7025654: APH1 (uniprotkb:Q96BI3) physically interacts (MI:0218) with PEN2 (uniprotkb:Q9NZ42), PS2 beta (uniprotkb:Q61144-2) and PS1 (uniprotkb:P49769) by anti tag coimmunoprecipitation (MI:0007) MINT-7025631: APH1 (uniprotkb:Q96BI3) physically interacts (MI:0218) with NCT (uniprotkb:Q92542), PEN2 (uniprotkb:Q9NZ42) and PS1 (uniprotkb:P49769) by anti tag coimmunoprecipitation (MI:0007)