Results 81 to 90 of about 4,943 (209)

Analysis of the immune-related transcriptome of a lophotrochozoan model, the marine annelid Platynereis dumerilii

open access: yesFrontiers in Zoology, 2007
Background The marine annelid Platynereis dumerilii (Polychaeta, Nereididae) has been recognized as a slow-evolving lophotrochozoan that attracts increasing attention as a valuable model for evolutionary and developmental research.
Vilcinskas Andreas, Altincicek Boran
doaj   +1 more source

Regulation of Sphingosine-1-phosphate Lyase Gene Expression by Members of the GATA Family of Transcription Factors [PDF]

open access: yes, 2005
Sphingosine-1-phosphate is a bioactive sphingolipid that regulates proliferation, differentiation, migration, and apoptosis. Sphingosine-1-phosphate is irreversibly degraded by the highly conserved enzyme sphingosine-1-phosphate lyase.
Fyrst, Henrik   +5 more
core   +1 more source

Bringing together but staying apart: decisive differences in animal and fungal mitochondrial inner membrane fusion

open access: yesBiological Reviews, Volume 100, Issue 2, Page 920-935, April 2025.
ABSTRACT Mitochondria are dynamic and plastic, undergoing continuous fission and fusion and rearrangement of their bioenergetic sub‐compartments called cristae. These fascinating processes are best understood in animal and fungal models, which are taxonomically grouped together in the expansive Opisthokonta supergroup.
Hassan Hashimi   +2 more
wiley   +1 more source

Slit-Robo expression in the leech nervous system: insights into eyespot evolution

open access: yesCell & Bioscience, 2023
Background Slit and Robo are evolutionarily conserved ligand and receptor proteins, respectively, but the number of slit and robo gene paralogs varies across recent bilaterian genomes.
Hee-Jin Kwak   +9 more
doaj   +1 more source

Identification, distribution and molecular evolution of the pacifastin gene family in Metazoa [PDF]

open access: yes, 2009
BACKGROUND: Members of the pacifastin family are serine peptidase inhibitors, most of which are produced as multi domain precursor proteins. Structural and biochemical characteristics of insect pacifastin-like peptides have been studied intensively, but ...
Breugelmans, B   +4 more
core   +2 more sources

Pigment Dispersing Factors and Their Cognate Receptors in a Crustacean Model, With New Insights Into Distinct Neurons and Their Functions

open access: yesFrontiers in Neuroscience, 2020
Pigment dispersing factors (PDFs, or PDHs in crustaceans) form a structurally related group of neuropeptides found throughout the Ecdysozoa and were first discovered as pigmentary effector hormones in crustaceans.
Jodi L. Alexander   +6 more
doaj   +1 more source

Breakdown of coevolution between symbiotic bacteria Wolbachia and their filarial hosts [PDF]

open access: yesPeerJ, 2016
Wolbachia is an alpha-proteobacterial symbiont widely distributed in arthropods. Since the identification of Wolbachia in certain animal-parasitic nematodes (the Onchocercidae or filariae), the relationship between arthropod and nematode Wolbachia has ...
Emilie Lefoulon   +6 more
doaj   +2 more sources

A peritidal Burgess‐Shale‐type fauna from the middle Cambrian of western Canada

open access: yesPalaeontology, Volume 68, Issue 1, January/February 2025.
Abstract Burgess‐Shale‐type (BST) faunas have proven critical for mapping the Cambrian assembly of animal‐dominated ecosystems, but have so far only been reported from fully subaqueous deposits. Here we integrate evidence from ichnofossils, sedimentary features, and small carbonaceous fossils (SCFs) from the middle Cambrian (Late Guzhangian, Series 3 ...
Giovanni Mussini   +2 more
wiley   +1 more source

Trichoplax, the simplest known animal, contains an estrogen-related receptor: Implications for the evolution of vertebrate and invertebrate estrogen receptors [PDF]

open access: yes, 2008
Although, as their names imply, vertebrate and invertebrate estrogen receptors [ERs] and estrogen-related receptors [ERRs] are related transcription factors, their evolutionary relationships to each other are not fully understood.
Michael E. Baker
core   +1 more source

Stepwise metamorphosis of the tubeworm Hydroides elegans is mediated by a bacterial inducer and MAPK signaling [PDF]

open access: yes, 2016
Diverse animal taxa metamorphose between larval and juvenile phases in response to bacteria. Although bacteria-induced metamorphosis is widespread among metazoans, little is known about the molecular changes that occur in the animal upon stimulation by ...
Antoshechkin, Igor   +4 more
core   +2 more sources

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