Results 61 to 70 of about 28,982 (257)

Exploring objective feature sets in constructing the evolution relationship of animal genome sequences

open access: yesBMC Genomics, 2023
Background Exploring evolution regularities of genome sequences and constructing more objective species evolution relationships at the genomic level are high-profile topics.
Xiaolong Li   +4 more
doaj   +1 more source

OrthoSelect: a protocol for selecting orthologous groups in phylogenomics [PDF]

open access: yes, 2009
Background: Phylogenetic studies using expressed sequence tags (EST) are becoming a standard approach to answer evolutionary questions. Such studies are usually based on large sets of newly generated, unannotated, and error-prone EST sequences from ...
Schreiber Fabian   +16 more
core   +1 more source

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

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

Box-Counting Dimension Sequences of Level Sets in AI-Generated Fractals

open access: yesFractal and Fractional
We introduce a mathematical framework to characterize the hierarchical complexity of AI-generated fractals within the finite resolution constraints of digital images.
Minhyeok Lee, Soyeon Lee
doaj   +1 more source

Fast Algorithms for Designing Complementary Sets of Sequences Under Multiple Constraints

open access: yesIEEE Access, 2019
Complementary sets of sequences (CSSs) are widely used in many applications, such as active sensing and wireless communication. The construction of CSS has attracted considerable attention over the past few decades.
Zhong-Jie Wu   +3 more
doaj   +1 more source

FADU: a Quantification Tool for Prokaryotic Transcriptomic Analyses

open access: yesmSystems, 2021
Quantification tools for RNA sequencing (RNA-Seq) analyses are often designed and tested using human transcriptomics data sets, in which full-length transcript sequences are well annotated.
Matthew Chung   +10 more
doaj   +1 more source

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

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

Sets of optimal frequency-hopping sequences

open access: yes, 2008
In communication systems, frequency-hopping spread spectrum and direct-sequence spread spectrum are two main spread coding technologies. Frequency-hopping sequences are needed in FH-CDMA systems.
Ding, Cunsheng, Yin, Jianxing
core   +1 more source

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

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

Depth, Highness and DNR degrees [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2017
We study Bennett deep sequences in the context of recursion theory; in particular we investigate the notions of O(1)-deepK, O(1)-deepC , order-deep K and order-deep C sequences. Our main results are that Martin-Loef random sets are not order-deepC , that
Philippe Moser, Frank Stephan
doaj   +1 more source

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