Results 101 to 110 of about 7,404,371 (262)

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Simulating single event upset error rate in large digital circuits

, 1994
Using this new module of Berkeley Reliability Tools (BERT), user can predict the error rate due to single event upset (SEU) in large circuits. The error rate model described here used a well established methodology, but for the first time a different ...
P. K. Ko, PAVAN, Paolo, C. Hu, E. Minami, R. Tu   +4 more
core  

Predication of Heavy Ion Single Event Upset Threshold and Cross Section Based on Low Energy Proton Test Data in Nanometer Devices

Yuanzineng kexue jishu
In order to ensure the reliability of heavy ion single event effect experimental data and the accuracy of space on-orbit single event error rate prediction, the research was conducted on the method of predicting the equivalent silicon layer thickness ...
LUO Yinhong, ZHANG Fengqi, WANG Tan, DING Lili, JIANG Xinshuai
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

28nm Fault-Tolerant Hardening-by-Design Frequency Divider for Reducing Soft Errors in Clock and Data Recovery

IEEE Access, 2019
A fault-tolerant hardening-by-design frequency divider has been proposed for clock and data recovery in a 28-nm CMOS process. By means of the mandatory updating mechanism, the proposed divider can update the state of the D flip-flops from an error state ...
Hengzhou Yuan, Yang Guo, Jianjun Chen, Yaqing Chi, Xi Chen, Bin Liang   +5 more
doaj   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

FEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise, Tiziano Mazza, Raffaella Scanga, Lara Console, Michele Galluccio, Cesare Indiveri   +5 more
wiley   +1 more source

Heavy Ion and Proton-Induced Single Event Upset Characteristics of a 3D NAND Flash Memory [PDF]

, 2017
We evaluated the effects of heavy ion and proton irradiation for a 3D NAND flash. The 3D NAND showed similar single-event upset (SEU) sensitivity to a planar NAND of identical density in the multiple-cell level (MLC) storage mode.
Ladbury, Raymond, Seidleck, Christina, Phan, Anthony, Label, Kenneth, Kim, Hak, Wilcox, Edward, Chen, Dakai   +6 more
core  

The ubiquitin system in normal and infected germinal center B cells

FEBS Letters, EarlyView.
The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis, Lesly Mejia, Emily K Moser   +2 more
wiley   +1 more source

Single event upset studies for the ATLAS SCT and pixel optical links [PDF]

, 2000
Optical data transmission has been chosen for the ATLAS Pixel and SemiConductor Tracker to deliver both timing and control information to the detector modules and transmit tracking data to the remote computer room.
Gregor, I M, Mahout, G, Homer, R James, Jovanovic, P, Dowell, John D, Troska, Jan K, White, D J, Weidberg, A R, Watsie, R L   +8 more
core   +1 more source

Design and Comparison of SEU Tolerant 10T Memory Cell for Radiation Environment Applications

EAI Endorsed Transactions on Energy Web
Single event upsets (SEUs), which are caused by radiation particles, have emerged as a significant concern in aircraft applications. Soft mistakes, which manifest as corruption of data in memory chips and circuit faults, are mostly produced by SEUs. The
P Mangayarkarasi, Arunkumar K, Anitha Juliette Albert   +2 more
doaj   +1 more source