Carotenoids obi
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The Carotenoids Database currently provides information on 1204 natural carotenoids  with 722 source organisms. Data on their structures and source organisms were obtained from the latest available original papers. The original chemical fingerprints newly investigated and described here make it easy to classify chemical modification patterns in carotenoid structures, to similarity search, and to predict some of the biological activities of carotenoids such as provitamin A, membrane stabilizers, odorous substances, allelochemicals, antiproliferative activity against cancer cells, and reverse MDR activity at the present time. Our goal is to understand how organisms are related via carotenoids, either evolutionarily or symbiotically or in food chains through natural histories.
 
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Release notes

 
                    December, 2016
                   ☀ Number of unique carotenoids: 1117, number of source organisms: 683.
                   ☀ Tanimoto coefficients with 13 types of fingerpreints were recalculated.
                   ☀ SOAC values were revised with the latest literature. (Mukai et al. 2016)
                   ☀ Chemical structure of 9Z-Capsanthin 5,6-epoxide was corrected.
                   ☀ Classification of apocarotenoids (beta,psi and beta,-) were revised.

                    November, 2016
                   ☀ Number of unique carotenoids: 1117, number of source organisms: 683.
                   ☀ Carotenoid profiles of three spicies of Stigonemataceae were added.
                   ☀ New tool for organisms searching by CA-numbers is added.
                   ☀ Carotenoid profile of Zygnema circumcarinatum profile was removed.
                   ☀ Carotenoid profiles of Dunaliella spp. and Dunaliella salina were added.
                   ☀ Carotenoid profiles of lichen Cladonia sp. was added.
                   ☀ Links to ProCarDB was added.
                   ☀ Biological functions of β-Cyclocitral and 3-hydroxy-β-ionone were added.
 
                    October, 2016
                   ☀ Number of unique carotenoids: 1124, number of source organisms: 679.
                   ☀ Information on Muricella sp. and Paphia amabilis were corrected.
                   ☀ Singlet Oxygen Absorption Capacity (SOAC) value was added.
                       (see Antioxidant list)
                   ☀ Information on C30 and C40 originated apocarotenoids at the top page
                        were corrected.
                   ☀ Seven redundant entries were deleted.
                        (CA00954, CA00178, CA00955, CA01054, CA01079, CA01102, CA01112)
                   ☀ SMILES is replaced by InChIKey. (SMILES string search is still available)
                   ☀ Carotenoid profiles of Spinach and garden lettuce were added.
 
                    August, 2016
                   ☀ Number of unique carotenoids: 1124, number of source organisms: 677.
                   ☀ Information on common and unique carotenoids in the three domains of life
                       was uploaded.
                   ☀ Five apocarotenoids including vitamin A2 and A3 were added.
                   ☀ Information on biological activities was updated.
                   ☀ Absolute configuration of Heteroxanthin was corrected.
 
                   July, 2016
                   ☀ Number of unique carotenoids: 1117, number of source organisms: 669.
                   ☀ A prediction tool of carotenoid bioactivity was enhanced.
                        Prediction of antiproliferative activity against cancer cells
                       and reverse MDR activity became possible.
                   ☀ A new tool to search carotenoid entries by carbon number
                       and oxygen number was uploaded.
                   ☀ A new tool to search carotenoid entries by the number of
                       conjugated double bonds was uploaded.
                   ☀ A new tool to exact search carotenoid entries by fingerprint
                        was uploaded.
                   ☀ Four apocarotenoids were added.
                   ☀ Source organisms were updated.
 
                   June, 2016
                   ☀ Number of unique carotenoids: 1107, number of source organisms: 666.
                   ☀  Information on number of conjugated multiple bonds was added.
                   ☀ Some diapocarotenoids were added.
 
                   April, 2016
                   ☀ Number of unique carotenoids: 1070, number of source organisms: 658.
                   ☀ Information on biological activities of carotenoids were updated.
 
                   February, 2016
                   ☀ Number of unique carotenoids: 1069, number of source organisms: 657.
                   ☀ Prediction of biological activities of provitamin A, membrane stabilizers,
                       odorous substances, allelochemicals became possible.
                   ☀ Statistics of carotenoid distribution in organisms were uploaded.
                   ☀ A new tool to search similar profiles in all levels of lineages was investigated
                        and uploaded.
                   ☀ Statistics of Carotenoid DB fingerprints were revised.
                   ☀ Information on biological activities of carotenoids were updated.
                   ☀ Some redundant carotenoid entries were removed.

Since June 15th, 2015 by Junko Yabuzaki.
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