Results 51 to 60 of about 1,008,958 (324)

An Alternative Model of Amino Acid Replacement [PDF]

open access: yes, 2004
The observed correlations between pairs of homologous protein sequences are typically explained in terms of a Markovian dynamic of amino acid substitution.
Altschul   +27 more
core   +3 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Parallel progressive multiple sequence alignment on reconfigurable meshes

open access: yesBMC Genomics, 2011
Background One of the most fundamental and challenging tasks in bio-informatics is to identify related sequences and their hidden biological significance.
Nguyen Ken D, Pan Yi, Nong Ge
doaj   +1 more source

MAVID: Constrained ancestral alignment of multiple sequences [PDF]

open access: yes, 2003
We describe a new global multiple alignment program capable of aligning a large number of genomic regions. Our progressive alignment approach incorporates the following ideas: maximum-likelihood inference of ancestral sequences, automatic guide-tree ...
Bray, Nicolas, Pachter, Lior
core   +4 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Heuristic for Solving the Multiple Alignment Sequence Problem

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2011
In this paper we developed a new algorithm for solving the problem of multiple sequence alignment (AM S), which is a hybrid metaheuristic based on harmony search and simulated annealing.
Roman Anselmo Mora Gutiérrez   +2 more
doaj   +1 more source

Efficient implied alignment

open access: yesBMC Bioinformatics, 2020
Background Given a binary tree T $\mathcal {T}$ of n leaves, each leaf labeled by a string of length at most k, and a binary string alignment function ⊗, an implied alignment can be generated to describe the alignment of a dynamic homology for T ...
Alex J. Washburn, Ward C. Wheeler
doaj   +1 more source

Seqotron: A user-friendly sequence editor for Mac OS X [PDF]

open access: yes, 2016
© 2016 Fourment and Holmes. Background: Accurate multiple sequence alignment is central to bioinformatics and molecular evolutionary analyses. Although sophisticated sequence alignment programs are available, manual adjustments are often required to ...
Fourment, M, Holmes, EC
core   +1 more source

Photosynthesis under far‐red light—evolutionary adaptations and bioengineering of light‐harvesting complexes

open access: yesFEBS Letters, EarlyView.
Phototrophs evolved light‐harvesting systems adapted for efficient photon capture in habitats enriched in far‐red radiation. A subset of eukaryotic pigment‐binding proteins can absorb far‐red photons via low‐energy chlorophyll states known as red forms.
Antonello Amelii   +8 more
wiley   +1 more source

Cognitively Economical Heuristic for Multiple Sequence Alignment under Uncertainties

open access: yesAxioms, 2022
This paper introduces a heuristic for multiple sequence alignment aimed at improving real-time object recognition in short video streams with uncertainties.
Milan Gnjatović   +5 more
doaj   +1 more source

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