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Oxytocin has a molecular mass of 1007 Da, and one international unit (IU) of oxytocin is the equivalent of 1.68 μg of pure peptide. [166] While the structure of oxytocin is highly conserved in placental mammals, a novel structure of oxytocin was reported in 2011 in marmosets, tamarins, and other new world primates.
Chemical structure of the arginine vasopressin (argipressin) with an arginine at the 8th amino acid position. Lysine vasopressin differs only in having a lysine in this position. Chemical structure of oxytocin. Differs from AVP at only the 3rd and 8th position. The vasopressins are peptides consisting of nine amino acids (nonapeptides).
n/a Ensembl n/a n/a UniProt n a n/a RefSeq (mRNA) n/a n/a RefSeq (protein) n/a n/a Location (UCSC) n/a n/a PubMed search n/a n/a Wikidata View/Edit Human Neurophysin I is a carrier protein with a size of 10 K Da and contains 90 to 97 amino acids. It is a cleavage product (formed by splitting of a compound molecule into a simpler one) of preprooxyphysin. It is a neurohypophysial hormone that is ...
The oxytocin receptor, also known as OXTR, is a protein which functions as receptor for the hormone and neurotransmitter oxytocin. [4] [5] In humans, the oxytocin receptor is encoded by the OXTR gene [6] [7] which has been localized to human chromosome 3p25. [8] Evolutionary tree of the oxytocin, vasotocin, mesotocin and isotocin receptors and ...
The oxytocin-like peptides, which differ in positions 4 and/or 8, include oxytocin (Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2, with arginine-8 of AVT changed to leucine), mesotocin (arginine-8 changed to isoleucine), and isotocin (glutamine-4 changed to serine and arginine-8 changed to isoleucine); they differ from the vasopressin-like peptides ...
The quality of this chemical structure is disputed. The dispute is about: Missing stereochemistry ( Please discuss the issue on this file's talkpage ) See also Wikipedia:Manual of Style/Chemistry/Structure drawing
Synthetic oxytocin, sold under the brand name Pitocin among others, is a medication made from the peptide oxytocin. [ 6 ] [ 7 ] As a medication, it is used to cause contraction of the uterus to start labor , increase the speed of labor , and to stop bleeding following delivery . [ 6 ]
This structure–activity relationship (SAR) is supported by the crystal structure of the human oxytocin receptor in complex with retosiban, [7] where the lipophilic indanyl substituent penetrates into a deep, mainly hydrophobic crevice at the bottom of the binding pocket, while the oxazol-morpholine amide moiety is closest to the extracellular ...