Results 41 to 50 of about 85,658 (276)

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Spectrum Sensing Optimization in an UAV-Based Cognitive Radio

IEEE Access, 2018
In cognitive radio (CR), the detection performance of traditional spectrum sensing may be decreased due to the multipath fading and shadowing effect. However, unmanned aerial vehicle (UAV) can receive a higher strength signal without suffering severe ...
Xin Liu, Mingxiang Guan, Xueyan Zhang, Hua Ding   +3 more
doaj   +1 more source

Spectrum Sharing between Cooperative Relay and Ad-hoc Networks: Dynamic Transmissions under Computation and Signaling Limitations

, 2011
This paper studies a spectrum sharing scenario between a cooperative relay network (CRN) and a nearby ad-hoc network. In particular, we consider a dynamic spectrum access and resource allocation problem of the CRN.
Li, Yunzhou, Sun, Yin, Xu, Xibin, Zhong, Xiaofeng, Zhou, Shidong   +4 more
core   +1 more source

Cooperative spectrum sensing in IEEE 802.22 standard

2009 IEEE 17th Signal Processing and Communications Applications Conference, 2009
IEEE is developing a wireless communication standard that will take place in cognitive radio class and be valid in the world. Data communication capability supporting is aimed with this standard called IEEE 802.22 to the rural area users in TV bands. In the TV bands, not to cause harmful interference to the existing TV receivers and to communicate in ...
Kulac, Selman, Eksim, Ali, Sazli, Murat H.   +2 more
openaire   +2 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Selective reporting: a half signalling load algorithm for distributed sensing [PDF]

, 2013
Spectrum sensing is a powerful tool of the cognitive cycle to help circumvent the apparent spectrum scarcity faced by wireless transmission systems.
3rd Generation Partnership Project, A Ghasemi, A Malady, Atílio Gameiro, C Sun, Carlos Ribeiro, D Cabric, D Cabric, E Axell, Federal Communications Commission, G Ding, G Ganesan, G Staple, IF Akyildiz, J Lunden, J Ma, J Mitola, J Quaresma, J Unnikrishnan, José Quaresma, L Chia-han, OFCOM, PK Varshney, R Wei Zhang, S Maleki, S Maleki, S Maleki, S Maleki, T Yucek, Y Selen, Y-J Choi   +30 more
core   +1 more source

Characterizing the salivary RNA landscape to identify potential diagnostic, prognostic, and follow‐up biomarkers for breast cancer

Molecular Oncology, EarlyView.
This study explores salivary RNA for breast cancer (BC) diagnosis, prognosis, and follow‐up. High‐throughput RNA sequencing identified distinct salivary RNA signatures, including novel transcripts, that differentiate BC from healthy controls, characterize histological and molecular subtypes, and indicate lymph node involvement.
Nicholas Rajan, Irina Primac, Emre Etlioglu, Laurens Debruyne, Ann Janssen, Magy Sallam, Kevin Tabury, Roel Quintens, Wiebren Tjalma, Mohammed Abderrafi Benotmane   +9 more
wiley   +1 more source

Spatial-Spectral Joint Detection for Wideband Spectrum Sensing in Cognitive Radio Networks

, 2008
Spectrum sensing is an essential functionality that enables cognitive radios to detect spectral holes and opportunistically use under-utilized frequency bands without causing harmful interference to primary networks.
Cui, Shuguang, Poor, H. Vincent, Quan, Zhi, Sayed, Ali. H.   +3 more
core   +2 more sources

Dual targeting of RET and SRC synergizes in RET fusion‐positive cancer cells

Molecular Oncology, EarlyView.
Despite the strong activity of selective RET tyrosine kinase inhibitors (TKIs), resistance of RET fusion‐positive (RET+) lung cancer and thyroid cancer frequently occurs and is mainly driven by RET‐independent bypass mechanisms. Son et al. show that SRC TKIs significantly inhibit PAK and AKT survival signaling and enhance the efficacy of RET TKIs in ...
Juhyeon Son, Lily L. Remsing Rix, Bin Fang, Eric A. Welsh, Nicole V. Bremer, Valentina Foglizzo, Paola Roa, Nickole Sigcha‐Coello, Yi Liao, Eric B. Haura, Alexander Drilon, John M. Koomen, Emiliano Cocco, Uwe Rix   +13 more
wiley   +1 more source