Results 101 to 110 of about 7,421,093 (305)

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

Simulating single event upset error rate in large digital circuits

open access: yes, 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   +4 more
core  

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS 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   +3 more
wiley   +1 more source

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

open access: yesYuanzineng 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

open access: yesFEBS 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   +6 more
wiley   +1 more source

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

open access: yesIEEE 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   +5 more
doaj   +1 more source

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

open access: yes, 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   +6 more
core  

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

open access: yesFEBS 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   +5 more
wiley   +1 more source

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

open access: yes, 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   +8 more
core   +1 more source

The ubiquitin system in normal and infected germinal center B cells

open access: yesFEBS 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   +2 more
wiley   +1 more source

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