High impact information on Asterina

• Here we show that in oocytes from the starfish Asterina pectinifera, the kinase Akt (or protein kinase B (PKB)) phosphorylates and downregulates Myt1, a member of the Wee1 family [1].
• External application of 50 micrograms ml-1 adenosine inhibits development of the starfish Asterina pectinifera at the 256-cell stage when all the embryonic cells differentiate to epithelial cells [2].
• Nuclear distribution of proliferating cell nuclear antigen (PCNA) in fertilized eggs of the starfish Asterina pectinifera [3].
• Centrioles from spermatozoa of the starfish, Asterina pectinifera, were isolated and partially purified by solubilization of chromatin followed by sucrose density-gradient centrifugation [4].
• We tested this proposition with oyster (Crassostrea gigas) and starfish (Asterina miniata) eggs, utilizing the MEK inhibitors U0126 and PD98059 [5].

Biological context of Asterina

• In contrast, no evidence of contemporary gene flow was found in the Mediterranean, suggesting contrasting patterns of dispersal of Asterina gibbosa in the Atlantic and Mediterranean basins [6].

Anatomical context of Asterina

• We report the constitution and molecular characterization of a novel transglutaminase (EC 2.3.2.13) that starts to accumulate specifically in the nucleus in the starfish (Asterina pectinifera) embryo after progression through the early blastula stage [7].
• A starfish homolog of mouse T-brain-1 is expressed in the archenteron of Asterina pectinifera embryos: possible involvement of two T-box genes in starfish gastrulation [8].
• Cyclic AMP-dependent protein kinase in ovarian follicle cells of starfish Asterina pectinifera [9].

Associations of Asterina with chemical compounds

• Inhibition of subsite-substituted leupeptin analogs, potent trypsin inhibitors, on 1-methyladenine-induced germinal vesicle breakdown was investigated in a starfish, Asterina pectinifera [10].
• To examine this hypothesis, hexylene glycol (HG) at a low concentration was applied to oocytes of the starfish Asterina pectinifera during the first meiotic division [11].
• The present study examines the possible involvement of guanine nucleotide-binding regulatory proteins (G-proteins) and adenylate cyclase in the action of GSS on 1-MeAde production by starfish (Asterina pectinifera) follicle cells [12].
• Oocytes of the starfish Asterina miniata were injected with RNA for a chimeric receptor consisting of the extracellular domain of the beta form of the mouse platelet-derived growth factor (PDGF) receptor and the transmembrane/intracellular domain of the human fibroblast growth factor (FGF) receptor, or with RNA for the rat serotonin 1c receptor [13].
• In the presence of 1 mM hydroxyurea, fertilized eggs of the starfish, Asterina pectinifera, cleaved up to the 256-cell stage and decomposed before blastulation [14].

Gene context of Asterina

• A histone heterodimer, designated as p28, which contains an Nepsilon(gamma-glutamyl)lysine cross-link between Gln9 of histone H2B and Lys5 or Lys12 of histone H4, is present in starfish (Asterina pectinifera) sperm [15].
• Three cDNA from the pyloric ceca of the starfish Asterina pectinifera, (namely, cDNA 1, 2, and 3), encoding phospholipase A2 (PLA2), were isolated and sequenced [16].

References