Results 81 to 90 of about 1,097,195 (292)

A scalable method for identifying frequent subtrees in sets of large phylogenetic trees

open access: yesBMC Bioinformatics, 2012
Background We consider the problem of finding the maximum frequent agreement subtrees (MFASTs) in a collection of phylogenetic trees. Existing methods for this problem often do not scale beyond datasets with around 100 taxa.
Ramu Avinash   +2 more
doaj   +1 more source

The Shapley Value of Phylogenetic Trees [PDF]

open access: yes, 2005
Haake C-J, Kashiwada A, Su FE. The Shapley Value of Phylogenetic Trees. Working Papers. Institute of Mathematical Economics. Vol 363. Bielefeld: Universität Bielefeld; 2005.Every weighted tree corresponds naturally to a cooperative game that we call a ...
Kashiwada, Akemi   +2 more
core  

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

open access: yesFEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey   +4 more
wiley   +1 more source

Visualizations for taxonomic and phylogenetic trees [PDF]

open access: yesBioinformatics, 2004
Abstract Motivation: Despite substantial efforts to develop and populate the back-ends of biological databases, front-ends to these systems often rely on taxonomic expertise. This research applies techniques from human–computer interaction research to the biodiversity domain.
Cynthia Sims Parr   +3 more
openaire   +2 more sources

A minimal cellulosome‐like system in Cellulosilyticum lentocellum

open access: yesFEBS Open Bio, EarlyView.
Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan   +2 more
wiley   +1 more source

Phylogenetic trees.

open access: yes, 2017
All phylogenetic trees generated in this ...
Pitts, James P.   +8 more
core   +4 more sources

Sampling motifs on phylogenetic trees [PDF]

open access: yesProceedings of the National Academy of Sciences, 2005
We present a method to find motifs by simultaneously using the overrepresentation property and the evolutionary conservation property of motifs. This method is applicable to divergent species where alignment is unreliable, which overcomes a major limitation of the current methods.
Li, Xiaoman, Wong, Wing H.
openaire   +3 more sources

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

open access: yesAdvanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen   +16 more
wiley   +1 more source

Melanin's Role in Balancing Mechanical Strength and Reproductive Output in Environmentally Stressed Fungal Spores

open access: yesAdvanced Functional Materials, EarlyView.
Melanin content directly controls fungal spore mechanical properties, with pigmented spores achieving rupture forces two orders of magnitude higher than hyaline spores. Environmental stress drives this quantity‐quality tradeoff; stressed species invest energy in melanin‐reinforced, mechanically superior thick‐walled, super‐hydrophobic spores, while ...
Atul Agrawal, Steven E. Naleway
wiley   +1 more source

Building a Robust, Densely-Sampled Spider Tree of Life for Ecosystem Research

open access: yesDiversity, 2020
Phylogenetic relatedness is a key diversity measure for the analysis and understanding of how species and communities evolve across time and space.
Nuria Macías-Hernández   +11 more
doaj   +1 more source

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