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 1st, 2017
                   ☀ Number of unique carotenoids: 1174, number of source organisms: 699.
                   ☀ A new carotenoid of Pin-tailed Manakin: 6-hydroxy-ε,ε-carotene-3,3-dione
                    was added.
                   ☀ Two new carotenoids: (6S,9R)-Roseoside and (6S,9R)-Roseoside were added.
                   ☀ Two new carotenoids of Flavobacterium R1519: Monohydroxylycopene and
                       Dihydroxylycopene were added.
                   ☀ Chemical structure of Bacteriorubixanthin was corrected.
                   ☀ Chemical structure of (9Z)-Lycopen-20-ol was corrected.
 
                    September 1st, 2017
                   ☀ Number of unique carotenoids: 1169, number of source organisms: 695.
                   ☀ 5,6-Epoxy-3-hydroxy-β-ionone was added.
                   ☀ Chirarity of Idoxanthin C3' carbon was added.
                   ☀ Chirality of Vitamin A3 C3 carbon was added.
                   ☀ New organisms: Clione limacina, Paedoclione doliiformis, and
                   Limacina helicina were added.
                   ☀ Organism entry: Rosa damascena Mill was replaced to Rosa damascena.
                   ☀ IUPAC names and fingerprints of the aroma components of tea were addd.
                       (CA01176, CA01175, CA01174, CA01173)
                   ☀ 9-apoastaxanthinone(CA01196) was merged into CA01104
                       (3-Hydroxy-4-oxo-β-ionone).
 
                    August 1st, 2017
                   ☀ Number of unique carotenoids: 1169, number of source organisms: 692.
                   ☀ 2,6-dimethyldeca-2,4,6,8-tetraenedial was added.
 
                    July 23rd, 2017
                   ☀ Number of unique carotenoids: 1168, number of source organisms: 692.
                   ☀ search.cgi is upgrated. Please enter keywords of your interest
                   including organism information.
                   Please enter keywords in a singular form
                   such as "alga" insted of "algae", when necessary.
                   ☀ 13Z-Retinoate was added.
 
                    June 1st, 2017
                   ☀ Number of unique carotenoids: 1167, number of source organisms: 692.
                   ☀ A new tool to "search possible biosynthetic routes of carotenoids"
                   was released.
 
                    May 1st, 2017
                   ☀ Number of unique carotenoids: 1167, number of source organisms: 692.
                   ☀ Nine auto-oxidized astaxanthins (CA01195 to CA01203) were added.
                   ☀ Some entries were linked to MassBank database.
 
                    March 1st, 2017
                   ☀ Number of unique carotenoids: 1158, number of source organisms: 692.
                   ☀ Dihydrobisanhydrobacterioruberin was added.
                   ☀ An article on the Carotenoids DB was published on Feburary 26th.
                      Junko Yabuzaki (2017), Carotenoids Database: structures, chemical fingerprints
                  and distribution among organisms, DATABASE, Vol. 2017, Article ID bax004,
                  pp.1-11, DOI: https://doi.org/10.1093/database/bax004.

                    February 1st, 2017
                   ☀ Number of unique carotenoids: 1157, number of source organisms: 692.
                   ☀ Aroma components of tea, Asakusa-nori, wine, tobacco and heather honey.
                       were added.
                   ☀ (6’S)-α-carotene was newly added.

                    January 1st, 2017
                   ☀ Number of unique carotenoids: 1129, number of source organisms: 688.
                   ☀ Carlactone and five analogs were added to apocarotenoids.
                   ☀ Seven strigolactones were added to apocarotenoids.

Since June 15th, 2015 by Junko Yabuzaki.
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