Results 81 to 90 of about 964,507 (280)

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Macroscopic approaches to rotating neutron stars [PDF]

Ядерна фізика та енергетика
The macroscopic model for a neutron star (NS) as a perfect liquid drop at equilibrium is extended to rotating systems with a small frequency ω within the effective-surface (ES) approach.
A. A. Uleiev, A. G. Magner, S. P. Maydanyuk, A. Bonasera, H. Zheng, S. N. Fedotkin, A. I. Levon, U. V. Grygoriev, T. Depastas   +8 more
doaj   +1 more source

Janus and Hades in M-theory

Journal of High Energy Physics, 2022
Multi-parametric and analytic families of four-dimensional AdS3 × ℝ (Janus) and AdS3 × ℝ+ (Hades) solutions are constructed in the SO(8) gauged supergravity that arises from the consistent reduction of eleven-dimensional supergravity on S7 .
Andrés Anabalón, Miguel Chamorro-Burgos, Adolfo Guarino   +2 more
doaj   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Singletons, doubletons and M-theory [PDF]

Nuclear Physics B, 1998
We identify the two dimensional AdS subsupergroup $OSp(16/2,R)$ of the M-theory supergroup $OSp(1/32,R)$ which captures the dynamics of $n$ $D0$-branes in the large $n$ limit of Matrix theory. The $Sp(2,R)$ factor in the even subgroup $SO(16) \times Sp(2,R)$ of $OSp(16/2,R)$ corresponds to the AdS extension of the Poincare symmetry of the longitudinal ...
Günaydin, M., Minic, D.
openaire   +2 more sources

M-Theory Moduli Space and Cosmology [PDF]

, 2002
We conduct a systematic search for a viable string/M-theory cosmology, focusing on cosmologies that include an era of slow-roll inflation, after which the moduli are stabilized and the Universe is in a state with an acceptably small cosmological constant.
A. Sen, A.D. Linde, B. de Carlos, C. Herdeiro, C.P. Burgess, C.P. Burgess, E. G. Novak, E. Lima, E.I. Buchbinder, F. Quevedo, G. Dvali, G. Huey, G. Veneziano, G.R. Dvali, G.W. Moore, H. Liu, J. Khoury, J. Khoury, J.E. Lidsey, J.P. Derendinger, L. Kofman, M. Dine, M. Dine, M. Dine, M. Gasperini, N.V. Krasnikov, P. Binetruy, P.J. Steinhardt, R. Blumenhagen, R. Brustein, R. Brustein, R. Brustein, R. Brustein, R. Brustein, R. Kallosh, R. Rohm, S. Alexander, S. Elitzur, S. P. de Alwis, S.B. Giddings, S.M. Carroll, T. Banks, T. Barreiro   +42 more
core   +2 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

COVARIANT FORMULATION OF M-THEORY [PDF]

International Journal of Modern Physics A, 2009
We propose the bosonic part of an action that defines M-theory. It possesses manifest SO(1, 10) symmetry and constructed based on the Lorentzian 3-algebra associated with U(N) Lie algebra. From our action, we derive the bosonic sector of BFSS matrix theory and IIB matrix model in the naive large N limit by taking appropriate vacua.
openaire   +2 more sources

Elliptic models and M-theory [PDF]

, 1999
We give a unified analysis of four-dimensional elliptic models with N=2 supersymmetry and a simple gauge group, and their relation to M-theory. Explicit calculations of the Seiberg-Witten curves and the resulting one-instanton prepotential are presented.
Abolhasani, Aganagic, Alishahiha, Aoyama, Argyres, Argyres, Argyres, Argyres, Berglund, Bershadsky, Brandhuber, Brandhuber, Carlos Lozano, Chan, D'Hoker, D'Hoker, D'Hoker, D'Hoker, D'Hoker, D'Hoker, Danielsson, Donagi, Donagi, Dorey, Douglas, Douglas, Ennes, Ennes, Ennes, Ennes, Ennes, Evans, Evans, Finnell, Fucito, Gorsky, Gukov, Hanany, Hanany, Hanany, Hanany, Harano, Howard J. Schnitzer, Isabel P. Ennes, Ito, Ito, Itoyama, Kachru, Kachru, Katz, Katz, Katz, Katz, Khoze, Klemm, Klemm, Klemm, Klemm, Klemm, Krichever, Landsteiner, Landsteiner, Landsteiner, Martinec, Martinec, Masuda, Minahan, Minahan, Naculich, Pesando, Polchinski, Sacho, Seiberg, Slater, Slater, Stephen G. Naculich, Terashima, Uranga, Witten, Yokono, Yoshida   +80 more
core   +2 more sources

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source