tag:blogger.com,1999:blog-37148773.post5608766456826956607..comments2024-03-27T14:50:47.345-04:00Comments on <center>Sandwalk</center>: Monday's Molecule #157Larry Moranhttp://www.blogger.com/profile/05756598746605455848noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-37148773.post-77568973177096107642012-02-08T15:04:46.253-05:002012-02-08T15:04:46.253-05:00I think "glucose" is the accepted trivia...I think "glucose" is the accepted trivial name for D-glucose but that doesn't mean there's no L-glucose. It just means that you can't refer to The L-isomer using the trivial name alone.Larry Moranhttps://www.blogger.com/profile/05756598746605455848noreply@blogger.comtag:blogger.com,1999:blog-37148773.post-41133344242331123412012-02-08T13:47:12.787-05:002012-02-08T13:47:12.787-05:00Hi Larry,
There is no L isomer of sedoheptulose: ...Hi Larry,<br /><br />There is no L isomer of sedoheptulose: according to IUPAC definitions on the Nomenclature of Carbohydrates (www.iupac.org/publications/pac/1996/pdf/6810x1919.pdf ):<br />"Sedoheptulose is the accepted trivial name for D-altro-hept-2-ulose."<br /><br />This is why I was so specific in naming the molecule not as L-sedoheptoluse 1,7-bisphopshate but L-altro-hept-2-ulose bisphopshate.<br /><br />Thanks,<br />PeterPeter Monaghanhttp://ustartscience.comnoreply@blogger.comtag:blogger.com,1999:blog-37148773.post-51849051687270439212012-02-01T15:02:42.661-05:002012-02-01T15:02:42.661-05:00L-altro-hept-2-ulose 1,7-bis(dihydrogen phosphate)...L-altro-hept-2-ulose 1,7-bis(dihydrogen phosphate), and you may call me the grand poobah of the Internets.Alexhttps://www.blogger.com/profile/02590604089043425452noreply@blogger.comtag:blogger.com,1999:blog-37148773.post-86399008738791224242012-02-01T03:19:32.339-05:002012-02-01T03:19:32.339-05:00It appears to be sedoheptulose-1,7-bisphosphate, a...It appears to be sedoheptulose-1,7-bisphosphate, an intermediate of the Calvin cycle.<br />You appear however to show the L-stereoisomer, whereas it is the D-stereoisomer that is involved in the Calvin cycleJean-Marc Neuhaushttp://www.unine.ch/lbmcnoreply@blogger.comtag:blogger.com,1999:blog-37148773.post-22021343336221901162012-01-31T23:26:13.450-05:002012-01-31T23:26:13.450-05:00Hmm a tricksy one. There arent many naturally occ...Hmm a tricksy one. There arent many naturally occurring heptoses (C7 sugars) which narrows things down a bit. Assuming you are using standard Fischer projection, this compound is "L-altro-heptulose-1,7-bisphosphate", i.e. the unnatural enantiomer of sedoheptulose, esterified twice with phosphoric acid. <br /><br />Pedantic Chemist forsees some people will be tricked up by trying to compare the Fischer projection above, with the zigzag representation given on the wikipedia page for sedoheptulose.Nostranoodlehttps://www.blogger.com/profile/04808159695811673848noreply@blogger.comtag:blogger.com,1999:blog-37148773.post-26783391334996555082012-01-31T23:10:18.615-05:002012-01-31T23:10:18.615-05:00Sedoheptulose 1,7-bisphosphate.Sedoheptulose 1,7-bisphosphate.Matt Ghttps://www.blogger.com/profile/07745943486966305844noreply@blogger.comtag:blogger.com,1999:blog-37148773.post-66087085077532170462012-01-31T18:50:41.879-05:002012-01-31T18:50:41.879-05:00Molecule # 157 is L-sedoheptulose 1, 7-bisphosphat...Molecule # 157 is L-sedoheptulose 1, 7-bisphosphateRaul A. FĂ©lix de Sousanoreply@blogger.comtag:blogger.com,1999:blog-37148773.post-67266134398789980772012-01-31T18:46:49.385-05:002012-01-31T18:46:49.385-05:00L-altro-hept-2-ulose 1,7-bisphosphate
Peter Monag...L-altro-hept-2-ulose 1,7-bisphosphate<br /><br />Peter Monaghan<br />UndergraduateAnonymousnoreply@blogger.com