User:Fraile43/sandbox
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IUPAC name
(2S)-5-Amino-2-[[(2E,4E,6E,8E,10E,12E,14E,16E,18E,20E,22E,24E)-27-[(2R,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoctacosa-2,4,6,8,10,12,14,16,18,20,22,24-dodecaenoyl]amino]pentanoic acid
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Identifiers | |
3D model (JSmol)
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PubChem CID
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Properties | |
C39H52N2O8 | |
Molar mass | 676.851 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Granadaene is the trivial name of a non-isoprenoid polyene that constitutes the red pigment characteristic of Streptococcus agalactiae (group B streptococcus).
Characteristics
[edit]Granadaene contains a conjugated system made up of a linear chain of 12 conjugated double bonds which is conntected to the amino acid ornithine at one end and the sugar rhamnose at the other.[1][2] Granadaene is dark red, odorless, insoluble in water, methanol, ethanol, diethyl ether, acetone, hexane, dimethyl sulfoxide (DMSO), acetonitrile, tetrahydrofuran, chloroform, and in most solvents, it is soluble in DMSO–0.1% trifluoroacetic acid (TFA).[1] Granadaene, can be extracted from cultures of S.agalactiae in granada broth (granada medium without agar) with 0.1 M potassium hydroxide (KOH) and purified by size-exclusion chromatography on Sephadex LH using DMSO–0.1%TFA.[1]
- ^ a b c Rosa-Fraile M, Rodríguez-Granger J, Haidour-Benamin A, Cuerva JM, Sampedro A (2006). "Granadaene: Proposed Structure of the Group B Streptococcus Polyenic Pigment". Appl Environ Microbiol. 72 (9): 6367–6370. doi:10.1128/aem.00756-06. PMC 1563658. PMID 16957264.
- ^ Paradas M, Jurado R, Haidour A, Rodríguez Granger J, Sampedro Martínez A, de la Rosa Fraile M, Robles R, Justicia J, Cuerva JM (2012). "Clarifying the structure of granadaene: Total synthesis of related analogue - granadaene and confirmation of its absolute stereochemistry". Bioorg Med Chem. 20 (22): 6655–6661. doi:10.1016/j.bmc.2012.09.017. PMID 23043725.