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 10th, 2018
                   ☀ Number of unique carotenoids: 1204, number of source organisms: 722.
                   ☀ Two new species: Oryza sp. and Lycium sp. are added.
                   ☀ A new tool to search possible biosynthetic route is released.
 
                    October 1st, 2018
                   ☀ Number of unique carotenoids: 1182, number of source organisms: 698.
                   ☀ Major carotenoid information and minor carotenoid information were added..
                   See the example of β-cryptoxanthin.
 
                    August 1st, 2018
                   ☀ Number of unique carotenoids: 1182, number of source organisms: 698.
                   ☀ One new organism producing Astanxathin was added.
                   See: Paracoccus carotinifaciens sp. nov.
 
                    July 1st, 2018
                   ☀ Number of unique carotenoids: 1182, number of source organisms: 697.
                         (Some organisms were unified.)
                   ☀ One new carotenoid of goji-berry:
                   CA01218 Zeaxanthin monopalmitate
                   two other apo-lycopenals in tomato and watermelon:
                   CA01219 Apo-12’-lycopenal
                   CA01220 Apo-14'-lycopenal
                   and one oxidative carotenoid found in human:
                   CA01221 Acycloretinoic acid
                   were added.
 
                    June 6th, 2018
                   ☀ Number of unique carotenoids: 1178, number of source organisms: 700.
                   ☀ Three new carotenoids of Myxococcus:
                   CA01215 7,8-Dihydro-3',4'-Dehydro-Rhodopin glucoside ester,
                   CA01216 3',4'-Dehydro-Rhodopln glucoside ester, and
                   CA01217 Myxobactin ester
                   were added.
 
                    May 7th, 2018
                   ☀ Number of unique carotenoids: 1175, number of source organisms: 700.
                   ☀ URL links to Massbank was corrected.
 
                    April 14th, 2018
                   ☀ Number of unique carotenoids: 1175, number of source organisms: 700.
                   ☀ A new profile of an organism: Halomicronema hongdechloris was added.
 
                    March, 2018
                   ☀ Number of unique carotenoids: 1175, number of source organisms: 699.
                   ☀ A new carotenoid of a green dinoflagellate Lepidodinium chlorophorum:
                   Lepidoxanthin was added.

Since June 15th, 2015 by Junko Yabuzaki.
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