Results 101 to 110 of about 3,289 (189)

Short and random: Modelling the effects of (proto-)neural elongations [PDF]

open access: yes, 2017
To understand how neurons and nervous systems first evolved, we need an account of the origins of neural elongations: Why did neural elongations (axons and dendrites) first originate, such that they could become the central component of both neurons and ...
de Wiljes, Oltman O.   +2 more
core   +3 more sources

Neuropeptidergic integration of behavior in Trichoplax adhaerens, an animal without synapses

open access: yesJournal of Experimental Biology, 2017
ABSTRACT Trichoplax adhaerens is a flat, millimeter-sized marine animal that adheres to surfaces and grazes on algae. Trichoplax displays a repertoire of different feeding behaviors despite the apparent absence of a true nervous system with electrical or chemical synapses. It glides along surfaces to find food, propelled by beating cilia
Adriano Senatore   +2 more
openaire   +2 more sources

From tumors to species: a SCANDAL hypothesis

open access: yesBiology Direct, 2019
Some tumor cells can evolve into transmissible parasites. Notable examples include the Tasmanian devil facial tumor disease, the canine transmissible venereal tumor and transmissible cancers of mollusks.
A. Y. Panchin   +2 more
doaj   +1 more source

Comparative analysis of Drosophila and mammalian complexins as fusion clamps and facilitators of neurotransmitter release [PDF]

open access: yes, 2010
The SNARE-binding protein complexin (Cpx) has been demonstrated to regulate synaptic vesicle fusion. Previous studies are consistent with Cpx functioning either as a synaptic vesicle fusion clamp to prevent premature exocytosis, or as a facilitator to ...
Cho, Richard W.   +2 more
core   +1 more source

A conserved cluster of three PRD-class homeobox genes (homeobrain, rx and orthopedia) in the Cnidaria and Protostomia

open access: yesEvoDevo, 2010
Background Homeobox genes are a superclass of transcription factors with diverse developmental regulatory functions, which are found in plants, fungi and animals.
Mazza Maureen E   +4 more
doaj   +1 more source

Evolution of selenoproteins in the metazoan

open access: yesBMC Genomics, 2012
Background The selenocysteine (Sec) containing proteins, selenoproteins, are an important group of proteins present throughout all 3 kingdoms of life.
Jiang Liang, Ni Jiazuan, Liu Qiong
doaj   +1 more source

Steroid Receptors and Vertebrate Evolution

open access: yes, 2019
Considering that life on earth evolved about 3.7 billion years ago, vertebrates are young, appearing in the fossil record during the Cambrian explosion about 542 to 515 million years ago.
Baker, Michael E.
core  

Proteolysis of HCF-1 by Ser/Thr glycosylation-incompetent O-GlcNAc transferase:UDP-GlcNAc complexes [PDF]

open access: yes, 2016
In complex with the cosubstrate UDP-N-acetylglucosamine (UDP-GlcNAc),O-linked-GlcNAc transferase (OGT) catalyzes Ser/ThrO-GlcNAcylation of many cellular proteins and proteolysis of the transcriptional coregulator HCF-1.
Bhuiyan, Tanja   +6 more
core   +3 more sources

The backbone of the post-synaptic density originated in a unicellular ancestor of choanoflagellates and metazoans

open access: yesBMC Evolutionary Biology, 2010
Background Comparative genomics of the early diverging metazoan lineages and of their unicellular sister-groups opens new window to reconstructing the genetic changes which preceded or accompanied the evolution of multicellular body plans.
Manuel Michaël, Alié Alexandre
doaj   +1 more source

apex Mk.2/Mk.3: Secure Live Transmission of the First Flight of Trichoplax adhaerens in Space Based on Components Off-the-Shelf

open access: yesEng
After the successful flight of the first Advanced Processors, Encryption, and Security Experiment (apex) Commercial Off-the-Shelf (COTS) On-Board Computer (OBC) during the Propulsion Technologies and Components of Launcher Stages (ATEK)/Material Physics ...
Nico Maas   +8 more
doaj   +1 more source

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