ISOLATION AND STRUCTURE OF A 330 NM UV-ABSORBING SUBSTANCE, ASTERINA-330 FROM THE STARFISHASTERINA PECTINIFERA

Isolation and characteristics of trypsin from pyloric ceca of the starfish Asterina pectinifera.

Trypsin was purified from pyloric ceca of the starfish Asterina Pectinifera by ammonium sulfate precipitation, gel filtration, and cation-exchange chromatography. Final enzyme preparation was nearly homogeneous in sodium dodecyl sulfate-polyacrylamide gel electrophoresis and its molecular weight was estimated as approximately 28000. Optimum pH and temperature of A. pectinifera trypsin for hydro...

Isolation and characteristics of phospholipase A2 from the pyloric ceca of the starfish Asterina pectinifera

Npgrj_nn_1854 321..330

Directed fusion of transmitter-laden vesicles enables rapid intercellular signaling in the central nervous system and occurs at synapses within gray matter. Here we show that action potentials also induce the release of glutamate from axons in the corpus callosum, a white matter region responsible for interhemispheric communication. Callosal axons release glutamate by vesicular fusion, which in...

Jcb_201609124 317..330

317 The Rockefeller University Press $30.00 J. Cell Biol. Vol. 216 No. 2 317–330 https://doi.org/10.1083/jcb.201609124 Introduction MAPK pathways sense aspects of the extracellular environment and transmit this information to regulate various cellular processes. Most proteins involved in the MAPK pathways were identified in the 1970s and 1980s and then were characterized and linked together in ...

M398_25b 330..334

330 NATURE | VOL 398 | 25 MARCH 1999 | www.nature.com characters, which allow a greater range of excursion of the shoulder joint in the locomotion of multituberculates and living therians, have evolved at least twice among the Mesozoic mammals. Alternatively, the mobile joints between the clavicle, interclavicle and scapula could be ancestral conditions shared by J. jenkinsi and the more derive...