COG database search and functional classification

Among 46147 Citrus sinensis proteins, 31255 can be assigned to at least one COG cluster with HHsearch probability greater than 90%.

In the COG database, COG clusters are also grouped into general functional categories. The table and pie chart below show the distribution of the number of the mapped COG clusters over the general COG functional categories. Clicking on the number of COG clusters navigates to the webpage that shows the list of COG clusters associated with corresponding COG general functional category.

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COG general functional category
COG Annotation Count
to see
COG cluster

General function prediction only 560
Function unknown 479
Translation, ribosomal structure and biogenesis 240
Amino acid transport and metabolism 222
Transcription 192
Energy production and conversion 182
Carbohydrate transport and metabolism 175
Posttranslational modification, protein turnover, chaperones 170
Replication, recombination and repair 158
Coenzyme transport and metabolism 146
Inorganic ion transport and metabolism 135
Cell envelope biogenesis, outer membrane 119
Signal transduction mechanisms 116
Intracellular trafficking, secretion and vesicular transport 88
Nucleotide transport and metabolism 87
Lipid metabolism 85
Secondary metabolites biosynthesis, transport, and catabolism 65
Cell cycle control, cell division and chromosome partitioning 54
Defense mechanisms 29
Cell motility and secretion 28
RNA processing and modification 23
Chromatin structure and dynamics 19
Cytoskeleton 12