Carotenoids obi
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The Carotenoids Database currently provides information on 1169 natural carotenoids  with 695 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 functions 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.
Classification based on C number
  C30 carotenoids (37)
  C40 carotenoids (1087)
  C45 carotenoids (12)
  C50 carotenoids (33)
Classification based on chemical modifications
  C30 Hydrocarbons (8)
  C30 Hydroxycaroteonids (6)
  C30 Aldehydes (4)
  C30 Carboxylic acids (19)
  C40 Hydrocarbons (85)
  C40 Hydroxycaroteonids (288)
  C40 Epoxycarotenoids (97)
  C40 Aldehydes (20)
  C40 Ketones (269)
  C40 Carboxylic acids (14)
  C45 Hydroxycaroteonids (11)
  C50 Hydrocarbon (1)
  C50 Hydroxycaroteonids (30)
  C50 Epoxycarotenoids (2)
  Apocarotenoids (276)
Classification using Carotenoid DB Chemical Fingerprints
  Norcarotenoids (38)
  Secocarotenoids (13)
  Retrocarotenoids (13)
  Epoxycarotenoids (179)
  Olidecarotenoids (19)
  Allenecarotenoids (65)
  Acetylenecarotenoids (79)
  Diapocarotenoids (30)


























Classification based on end groups   
  β γ ε ψ φ χ κ
 β  321       
γ 4 4      
ε 91 4 32     
ψ 118 4 19 180    
φ 6 0 0 12 9    
χ 9 1 0 3 3 2  
κ 36 0 0 0 0 2  3 

C40 originated apocarotenoids  

  β γ ε ψ φ χ κ -
- 156 2 47 16 0 0 2 33
ψ 8 0 0 4 0 0 0 0

C30 originated apocarotenoids

  β γ ε ψ φ χ κ -
ψ 0 0 0 37 0 0 0 0


            Carotenoids in the three domains of life
                     ☀ Bacterial carotenoids (308)  
                     ☀ Carotenoids in Archaea (25)
                     ☀ Carotenoids in Eukaryotes (650)
                     ☀ Common and unique carotenoids in the three domains of life
            Biological functions
                     ☀ Biological functions of carotenoids   
            Statistics
                     ☀ Statistics of Carotenoid DB fingerprints
                     ☀ Statistics of carbon numbers and endgroups in organisms
                     ☀ Statistics of chemical modifications in organisms
            Tools
                     ☀ Similarity search of chemical structures
                           using Carotenoid DB Chemical Fingerprint
                     ☀ Similar profiled organisms searching
                     ☀ Similar profiled organisms searching by your own profile   
                     ☀ Searching similar profiles in all levels of lineages
                     ☀ Biological functions prediction of carotenoids
                     ☀ Search possible biosynthetic routes of carotenoids in theory.  NEW!
            FTP
                     ☀ Download fingerprinters   Remaining unchanged from December 2016.

Last updated on November 6th, 2017
Since June 15th, 2015 by Junko Yabuzaki.
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