Protein secondary structure
Protein secondary structure is the three dimensional form of local segments of proteins. The two most common secondary structural elements are alpha helices and beta sheets, though beta turns and omega loops occur as well. Secondary structure elements typically spontaneously form as a
A tetrapeptide is a peptide, classified as an oligopeptide, since it only consists of four amino acids
Examples of tetrapeptides are: See also Hormones Categories: From Wikipedia where this page was last updated July 2, 2022
Ghrelin or lenomorelin
History and name Gene, transcription products, and structure Ghrelin cells Alternative names Location Features Function and mechanism of action Blood levels Ghrelin receptor Locations of action Glucose metabolism Sleep Reproductive system Fetus and neonate Anorexia and obesity Disease management Gas
The drug phencyclidine (PCP or ‘Angel Dust’) antagonizes glutamic acid non-competitively at the NMDA receptor
The drug phencyclidine (more commonly known as PCP or ‘Angel Dust’) antagonizes glutamic acid non-competitively at the NMDA receptor. For the same reasons, dextromethorphan and ketamine also have strong dissociative and hallucin
Tryptophan tryptophylquinone (TTQ) formation
Tryptophan tryptophylquinone (TTQ) is an enzyme cofactor, generated by posttranslational modification of amino acids within the protein. Methylamine dehydrogenase (MADH), an amine dehydrogenase, requires TTQ for its catalytic function. From Wikipedia wher
Kaede (protein)
Kaede is a photoactivatable fluorescent protein naturally originated from a stony coral, Trachyphyllia geoffroyi. Its name means “maple” in Japanese. With the irradiation of ultraviolet light (350â400 nm), Kaede undergoes irreversible p
Nucleic acid secondary structure
Nucleic acid secondary structure is the basepairing interactions within a single nucleic acid polymer or between two polymers. It can be represented as a list of bases which are paired in a nucleic acid molecule. Dirks, Robert M.; Lin, Milo; Winfree, Erik & Pierce, Niles
Structural motif
In a chain-like biological molecule, such as a protein or nucleic acid, a structural motif is a common three-dimensional structure that appears in a variety of different, evolutionarily unrelated molecules. Johansson, M.U. (23 July 2012). “Defining and searching for structural motif
Turn (biochemistry)
For beta turns, see Beta turn. A turn is an element of secondary structure in proteins where the polypeptide chain reverses its overall direction. Definition According to one definition, see Rose et al. 1985 in the References a turn is a structural motif where the CÎą a
β turns (also β-bends, tight turns, reverse turns, Venkatachalam turns) are the most common form of turnsâa type of non-regular secondary structure in proteins that cause a change in direction of the polypeptide chain
β turns (also β-bends, tight turns, reverse turns, Venkatachalam turns) are the most common form of turnsâa type of non-regular secondary structure in proteins that cause a change in direction of the polypeptide chain. They are very common motifs in&n
Bacterial diseases of hazelnut (Corylus avellana & Corylus spp.) and more
Bacterial blight Xanthomonas arboricola Scientific classification Domain: Bacteria Phylum: Pseudomonadota Class: Gammaproteobacteria Order: Xanthomonadales Family: Xanthomonadaceae Genus: Xanthomonas Species: X. arboricola Binomial name Xanthomonas arboricolaVauterin et al. 1995 Type
Dowsing, doodlebugging and water witching
Dowsing is a type of divination employed in attempts to locate ground water, buried metals or ores, gemstones, oil, claimed radiations (radiesthesia), gravesites, malign “earth vibrations” and many other objects and materials without the use of a scientific apparatus. It is als