tag:blogger.com,1999:blog-37148773.post8568863550651244592..comments2024-03-27T14:50:47.345-04:00Comments on <center>Sandwalk</center>: Monday's Molecule #179Larry Moranhttp://www.blogger.com/profile/05756598746605455848noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-37148773.post-58675228743288143712012-07-30T18:36:57.104-04:002012-07-30T18:36:57.104-04:00Molecule # 179 is 2-carboxy-3-ketoarabinitol 1,5-b...Molecule # 179 is 2-carboxy-3-ketoarabinitol 1,5-bisphosphate, which is generated by the carboxylation of ribulose 1,5 bisphosphate, and is quickly decomposed to 3-phosphoglycerate. This carboxylation is part of the Calvin-Benson cycle, and it is also the gateway though which all the carbon fixation in photosynthetic organisms occurs.Raul A. FĂ©lix de Sousanoreply@blogger.comtag:blogger.com,1999:blog-37148773.post-19159232436938627472012-07-30T16:54:00.556-04:002012-07-30T16:54:00.556-04:00This is 3-keto-2-carboxyarabinitol-1,5-bisphosphat...This is 3-keto-2-carboxyarabinitol-1,5-bisphosphate, the product of the reaction between ribulose 1,5 bisphosphate and carbon dioxide, an intermediate in carbon fixation by plants. It immediately decays to two molecules of glycerate-3-phosphate.<br /><br />This reaction is catalyzed by Ribulose Bisphosphate carboxylase (RuBisCO), which is the most abundant protein in the leaves of plants..Bill Chaneynoreply@blogger.com