Results 91 to 100 of about 1,756 (166)

Apicortin, a Putative Apicomplexan-Specific Protein, Is Present in Deep-Branching Opisthokonts

open access: yesBiology
Apicortin, a tubulin/microtubule-binding protein, was first described in 2009 as a protein characteristic of apicomplexans; it was found to be present in all Apicomplexa genomes already sequenced.
Ferenc Orosz
doaj   +1 more source

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

Multiple surveys employing a new sample‐processing protocol reveal the genetic diversity of placozoans in Japan [PDF]

open access: yes, 2018
Placozoans, flat free‐living marine invertebrates, possess an extremely simple bauplan lacking neurons and muscle cells and represent one of the earliest‐branching metazoan phyla. They are widely distributed from temperate to tropical oceans.
Miyazawa Hideyuki   +2 more
core   +2 more sources

DNA Content and Fragmentation of the Egg Nucleus of Trichoplax adhaerens

open access: yesZeitschrift für Naturforschung C, 1981
Abstract Under culture conditions the egg nucleus of Trichoplax adhaerens reaches an unusually high and variable DNA content. Before the "fertilization membrane" is formed, the nucleus undergoes fragmentation. It is assumed that culture conditions differ from natural conditions by preventing the switch-over from the S-phase to the G 2 ...
A. Ruthmann, K. G. Grell, G. Benwitz
openaire   +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

Alternative NAD(P)H dehydrogenase and alternative oxidase: proposed physiological roles in animals [PDF]

open access: yes, 2019
The electron transport systems in mitochondria of many organisms contain alternative respiratory enzymes distinct from those of the canonical respiratory system depicted in textbooks.
Gospodaryov, Dmytro V.   +1 more
core   +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

NR3E receptors in cnidarians : a new family of steroid receptor relatives extends the possible mechanisms for ligand binding [PDF]

open access: yes, 2018
Author Posting. © The Author(s), 2018. This is the author's version of the work. It is posted here under a nonexclusive, irrevocable, paid-up, worldwide license granted to WHOI. It is made available for personal use, not for redistribution.
Billas, Isabelle M. L.   +6 more
core   +2 more sources

Homoplasy in genome-wide analysis of rare amino acid replacements: the molecular-evolutionary basis for Vavilov's law of homologous series [PDF]

open access: yes, 2008
Background Rare genomic changes (RGCs) that are thought to comprise derived shared characters of individual clades are becoming an increasingly important class of markers in genome-wide phylogenetic studies.
Igor B Rogozin   +4 more
core   +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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