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CGDB: a database of circadian genes in eukaryotes.


ABSTRACT: We report a database of circadian genes in eukaryotes (CGDB, http://cgdb.biocuckoo.org), containing ?73 000 circadian-related genes in 68 animals, 39 plants and 41 fungi. Circadian rhythm is ?24 h rhythm in behavioral and physiological processes that exists in almost all organisms on the earth. Defects in the circadian system are highly associated with a number of diseases such as cancers. Although several databases have been established for rhythmically expressed genes, a comprehensive database of cycling genes across phyla is still lacking. From the literature, we collected 1382 genes of which transcript level oscillations were validated using methods such as RT-PCR, northern blot and in situ hybridization. Given that many genes exhibit different oscillatory patterns in different tissues/cells within an organism, we have included information regarding the phase and amplitude of the oscillation, as well as the tissue/cells in which the oscillation was identified. Using these well characterized cycling genes, we have then conducted an orthologous search and identified ?45 000 potential cycling genes from 148 eukaryotes. Given that significant effort has been devoted to identifying cycling genes by transcriptome profiling, we have also incorporated these results, a total of over 26 000 genes, into our database.

SUBMITTER: Li S 

PROVIDER: S-EPMC5210527 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature

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CGDB: a database of circadian genes in eukaryotes.

Li Shujing S   Shui Ke K   Zhang Ying Y   Lv Yongqiang Y   Deng Wankun W   Ullah Shahid S   Zhang Luoying L   Xue Yu Y  

Nucleic acids research 20161026 D1


We report a database of circadian genes in eukaryotes (CGDB, http://cgdb.biocuckoo.org), containing ∼73 000 circadian-related genes in 68 animals, 39 plants and 41 fungi. Circadian rhythm is ∼24 h rhythm in behavioral and physiological processes that exists in almost all organisms on the earth. Defects in the circadian system are highly associated with a number of diseases such as cancers. Although several databases have been established for rhythmically expressed genes, a comprehensive database  ...[more]

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