Results 91 to 100 of about 560,038 (351)

Massilistercora timonensis gen. nov., sp. nov., a new bacterium isolated from the human microbiota

open access: yesNew Microbes and New Infections, 2020
Massilistercora timonensis gen. nov., sp. nov. strain Marseille-P3756T is a new species of the phylum Firmicutes; it was isolated from the human gut microbiota and has a genome of 2 769 591 bp (51.2% G + C). The closest species based on 16S rRNA sequence
M.L. Tall   +7 more
doaj   +1 more source

Unique Perfect Phylogeny Characterizations via Uniquely Representable Chordal Graphs

open access: yes, 2013
The perfect phylogeny problem is a classic problem in computational biology, where we seek an unrooted phylogeny that is compatible with a set of qualitative characters.
Gysel, Rob
core  

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

Deep‐sea caridean shrimps collected from the South China Sea with emphasizing their phylogenetic relationships

open access: yesEcology and Evolution
Despite the high biological and ecological diversity of the South China Sea, limited research has been conducted on the deep‐sea species diversity of caridean shrimps.
Zhibin Gan, Xuefeng Fang, Xinzheng Li
doaj   +1 more source

Giant Sticks from Vietnam and China, with three new taxa including the second longest insect known to date (Phasmatodea, Phasmatidae, Clitumninae, Pharnaciini)

open access: yesEuropean Journal of Taxonomy, 2014
Two new species and one subspecies of Pharnaciini, belonging to two different genera, are described from Vietnam: one species and subspecies of Phryganistria Stål, 1875 and one species of Phobaeticus Brunner von Wattenwyl, 1907.
Joachim Bresseel, Jérôme Constant
doaj   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Morphological and DNA sequence data uncover a new millipede species in the Thyropygus opinatus subgroup and assign T. peninsularis to this subgroup (Diplopoda: Spirostreptida: Harpagophoridae) [PDF]

open access: yesPeerJ
The millipede genus Thyropygus Pocock, 1894 is one of the most diverse genera within the family Harpagophoridae in Southeast Asia. The Thyropygus opinatus subgroup, belonging to the T.
Piyatida Pimvichai   +4 more
doaj   +2 more sources

Emotion and Phylogeny.

open access: yesThe Japanese Journal of Physiology, 1999
Gentle handling of mammals (rats, mice) and lizards (Iguana), but not of frogs (Rana) and fish (Carassius), elevated the set-point for body temperature (i.e., produced an emotional fever) achieved only behaviorally in lizards. Heart rate, another detector of emotion in mammals, was also accelerated by gentle handling, from ca. 70 beats/min to ca.
openaire   +3 more sources

Phylogeny of Viruses ☆

open access: yes, 2017
Biological species, including viruses, change through generations and over time in the process known as evolution. Viruses may evolve at high, uneven, and fluctuating rates among genome sites. The accumulated changes, through either mutation or recombination with other species, are first fixed in the genome of successful individuals that give rise to ...
Gorbalenya, Alexander E., Lauber, C.
openaire   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

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