Search results
Results From The WOW.Com Content Network
Nucleolus. The nucleolus ( / njuːˈkliːələs, ˌnjuːkliˈoʊləs /; pl.: nucleoli /- laɪ /) is the largest structure in the nucleus of eukaryotic cells. [ 1] It is best known as the site of ribosome biogenesis, which is the synthesis of ribosomes. The nucleolus also participates in the formation of signal recognition particles and plays a ...
Nucleolus organizer regions (NORs) are chromosomal regions crucial for the formation of the nucleolus. In humans, the NORs are located on the short arms of the acrocentric chromosomes 13, 14, 15, 21 and 22, the genes RNR1, RNR2, RNR3, RNR4, and RNR5 respectively. [ 1] These regions code for 5.8S, 18S, and 28S ribosomal RNA. [ 1]
Felice Fontana. Abbé Gasparo Ferdinando Felice Fontana (15 April 1730 [1] – 9 March 1805) was an Italian polymath who contributed to experimental studies in physiology, toxicology, and physics. As a physicist he discovered the water gas shift reaction in 1780. He investigated the human eye and has also been credited with discovering the ...
5S ribosomal RNA. The 5S ribosomal RNA ( 5S rRNA) is an approximately 120 nucleotide-long ribosomal RNA molecule with a mass of 40 kDa. It is a structural and functional component of the large subunit of the ribosome in all domains of life ( bacteria, archaea, and eukaryotes ), with the exception of mitochondrial ribosomes of fungi and animals.
Small nucleolar RNA. In molecular biology, small nucleolar RNAs ( snoRNAs) are a class of small RNA molecules that primarily guide chemical modifications of other RNAs, mainly ribosomal RNAs, transfer RNAs and small nuclear RNAs. There are two main classes of snoRNA, the C/D box snoRNAs, which are associated with methylation, and the H/ACA box ...
Category:Spliceosome. This category groups pages related to the spliceosome, which is a loose conglomerate of protein and RNA responsible for the correct splicing of mRNA . Wikimedia Commons has media related to Spliceosomes.
Fibrillarin is a component of several ribonucleoproteins including a nucleolar small nuclear ribonucleoprotein ( SnRNP) and one of the two classes of small nucleolar ribonucleoproteins (snoRNPs). SnRNAs function in RNA splicing while snoRNPs function in ribosomal RNA processing. Fibrillarin is associated with U3, U8 and U13 small nuclear RNAs ...
Gabriel Gustav Valentin was born at Breslauin July 1810. He was Jewish,[2]the son of a Jewish goldsmith.[3] He was educated at the University of Breslau(with M.D. 1832), and he established himself later as a physician in the town.[1] In 1835, Valentin received the Grand Prix of the Institut de Francefor his book "Histiogenia Comparata"which is ...