Appearance
🎉 your ETH🥳
"23S rRNA (guanine2535-N1)-methyltransferase (, AviRa) is an enzyme with systematic name S-adenosyl-L-methionine:23S rRNA (guanine2535-N1)-methyltransferase. This enzyme catalyses the following chemical reaction : S-adenosyl-L-methionine + guanine2535 in 23S rRNA \rightleftharpoons S-adenosyl-L-homocysteine + N1-methylguanine2535 in 23S rRNA This is one of the methyltransferases from Streptomyces viridochromogenes . Streptomyces viridochromogenes produces the antibiotic avilamycin A which binds to the 50S ribosomal subunit to inhibit protein synthesis. References External links * EC 2.1.1 "
"Tesakoviaspis concentrica is an extinct species of primitive jawless fish from the Middle Ordovician. References Ordovician jawless fish Pteraspidomorphi genera Middle Ordovician animals "
"Testa Grigia (French : Tête grise, lit. "grey head") (3,479 m) is a rocky prominence above the Theodul Pass, located on the border between Italy (Aosta Valley) and Switzerland (Valais). It overlooks the Plateau Rosa section of the Theodul Glacier on its east side. Ascent The summit can be reached from Breuil-Cervinia and is the culminating point of the Italian part of the international ski area with Zermatt. A connection with the Klein Matterhorn (3,889 m) over the Theodul Glacier is planned for 2021.www.matterhornparadise.ch ReferencesExternal links *Testa Grigia on Hikr Mountains of the Alps Alpine three-thousanders Mountains of Aosta Valley Mountains of Valais Italy–Switzerland border International mountains of Europe Mountains of Switzerland "