Transfer RNA - Wikipedia
A transfer RNA (abbreviated tRNA and formerly referred to as sRNA, for soluble RNA) is an adaptor molecule composed of RNA, typically 76 to 90 nucleotides in length, that serves as the physical link between the mRNA and the amino acid sequence of proteins. tRNA does this by carrying an amino acid to the protein synthetic machinery of a cell as directed by a 3-nucleotide sequence in a messenger ...
Transfer-RNA – Wikipedia
Transfer-RNA (av engelskans transfer RNA, förkortat tRNA) är RNA som har till uppgift att transportera aminosyror till ribosomerna i cellen för att användas i proteinsyntesen.. Det finns en sådan transfer-RNA-molekyl för varje kodon i den genetiska koden.Schematiskt har transport-RNA-molekylerna formen av ett kors där det i ”toppen” av molekylen ((α) i bilden) finns en ...
Catalysis - Wikipedia
Catalysis is the process of increasing the rate of a chemical reaction by adding a substance known as a catalyst (/ ˈ k æ t əl ɪ s t /), which is not consumed in the catalyzed reaction and can continue to act repeatedly.Because of this, only very small amounts of catalyst are required to alter the reaction rate in principle. In general, chemical reactions occur faster in the presence of a ...
OMIM Entry - * 590060 - TRANSFER RNA, MITOCHONDRIAL ...
In 1 of 5 MERRF patients who did not have the 8344A-G mutation, Silvestri et al. (1992) identified an 8356T-C transition in the MTTK gene.The patient was a 36-year-old woman with a history of myoclonic epilepsy, generalized seizures, ataxia, myopathy, and hearing loss that started at age 30 years.
OMIM Entry - * 590050 - TRANSFER RNA, MITOCHONDRIAL ...
Yakubovskaya et al. (2010) determined the 2.2-angstrom crystal structure of mature human MTERF1 bound to double-stranded DNA (nucleotides 3232 to 3253 of mitochondrial DNA) containing the termination sequence within leu-tRNA(UUR). They found that binding of MTERF1 to the termination sequence unwound the DNA molecule and promoted eversion of 3 nucleotides.
027 - Part 2 DNA & RNA — bozemanscience
Paul Andersen continues his description of DNA and RNA. He begins with the structure of DNA and RNA and moves into the process of DNA Replication.
Chem4Kids.com: Biochemistry: DNA
DNA Details DNA stands for deoxyribonucleic acid.It is special, because it holds the code for every cell in your body. That's right. Every cell in your body uses DNA as an instruction manual.
Transkription (Biologie) – Wikipedia
Als Transkription (von spätlateinisch transcriptio „Übertragung“ zu lateinisch transcribere „um-/ überschreiben“) wird in der Genetik die Synthese von RNA anhand einer DNA als Vorlage bezeichnet. Die dabei entstehende RNA lässt sich größtenteils in drei Gruppen einteilen: mRNA (messenger RNA) (zur Proteinbiosynthese) sowie tRNA (transfer RNA) und rRNA (ribosomale RNA).
CanvasMol - AlteredQualia
Interactive 3D molecule viewer in HTML5. Works with PDB/MOL/SDF formats.
Lizard Evolution Virtual Lab | HHMI BioInteractive
We have updated the Lizard Evolution Virtual Lab based on feedback from field testers (over 50 classrooms!). The virtual lab includes four modules that investigate different concepts in evolutionary biology, including adaptation, convergent evolution, phylogenetic analysis, reproductive isolation, and speciation.