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Prymnesin
Prymnesin may refer to: * Prymnesin-1 * Prymnesin-2 * Prymnesin-B1 Prymnesin-B1 is a chemical with the molecular formula . It is a member of the prymnesins, a class of ladder-frame polyether phycotoxins made by the alga '' Prymnesium parvum''. It is known to be toxic to fish. It is a so called "Type-B" prymnesin, ... * Prymnesin-B2 {{Short pages monitor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prymnesin-2
Prymnesin-2 is an organic compound that is secreted by the haptophyte ''Prymnesium parvum''. It belongs to the prymnesin family and has potent hemolytic and ichthyotoxic properties. In a purified form it appears as a pale yellow solid. ''P. parvum'' is responsible for red harmful algal blooms worldwide, causing massive fish killings. When these algal blooms occur, this compound poses a threat to the local fishing industry. This is especially true for brackish water, as the compound can reach critical concentrations more easily. Structure and reactivity The structural formula of prymnesin-2 is: C96H136Cl3NO35. The compound exhibits multiple chiral centers. The molecule is amphoteric, which means that it can act both as base and an acid. This is because all 16 hydroxyls, except for one at C32, are concentrated on carbons C48-84, and there α-L-xylofuranose moiety at C77. This might lead to interaction with biomembranes, which is thought to be the basis of its toxicity. The diffe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prymnesin-1
Prymnesin-1 is a chemical with the molecular formula . It is a member of the prymnesins, a class of hemolytic phycotoxins made by the alga ''Prymnesium parvum''. It is known to be toxic to fish, causing mass fish deaths around the world, including in Texas and England, or in 2022 in the border region of Germany and Poland (Oder). Structures Prymnesin-1 is formed of a large polyether polycyclic core with several conjugate double and triple bonds, chlorine and nitrogen heteroatoms and O-linked sugar moieties including α-D-ribofuranose, α-L-arabinopyranose, and β-D-galactofuranose, unlike the single linked α-L-xylofuranose of prymnesin-2. There are three forms of prymnesin known, prymnesin 1 and 2, differing in their glycosylation, and prymnesin B1 differing in backbone. See also * Prymnesin-2 * Prymnesin-B1 Prymnesin-B1 is a chemical with the molecular formula . It is a member of the prymnesins, a class of ladder-frame polyether phycotoxins made by the alga '' Prymnesium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prymnesin-B1
Prymnesin-B1 is a chemical with the molecular formula . It is a member of the prymnesins, a class of ladder-frame polyether phycotoxins made by the alga ''Prymnesium parvum''. It is known to be toxic to fish. It is a so called "Type-B" prymnesin, which differ in the number of backbone cycles when compared to Type-A prymnesins like prymnesin-2. Structures Prymnesins-B1 is formed of a large polyether polycyclic core with several conjugate double and triple bonds, chlorine and nitrogen heteroatoms and a single sugar moiety consisting of α-D-galactopyranose. See also * Prymnesin-1 * Prymnesin-2 Prymnesin-2 is an organic compound that is secreted by the haptophyte ''Prymnesium parvum''. It belongs to the prymnesin family and has potent hemolytic and ichthyotoxic properties. In a purified form it appears as a pale yellow solid. ''P. parvum ... References {{reflist Phycotoxins Polyether toxins Primary alcohols Secondary alcohols Conjugated enynes Organochlorides Halohydr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |