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Table 1 Functional classes of genes

From: Sugar Lego: gene composition of bacterial carbohydrate metabolism genomic loci

Functional class Enzyme EC number Number of genes Cassette propensity
Transcriptional Not applicable 39,136 35,29%
Transport Not applicable 29,701 70,83%
Glycosyltransferase 2.4.1. 14,579 62,30%
Glycosidase 3.2.1. 11,475 64,74%
Kinase 2.7.1.; 2.7.9 9250 57,95%
Isomerase 5.3.1. 6458 55,20%
Dehydrogenase-OH 1.1. 5518 57,67%
Decarboxylase 4.1. 2788 58,97%
Nucleotidyltransferase 2.7.7.; 2.7.8 2125 70,96%
Dehydratase 4.2. 2091 52,75%
Phosphatase 3.1.3. 2036 37,77%
Epimerase 5.1.3. 1753 61,78%
Deacetylase 3.5.1. 1525 51,02%
Transaldolase/transketolase 2.2.1. 1514 70,54%
Mutase 5.4.2. 1502 40,35%
Carboxylic-esterase 3.1.1. 1153 63,49%
Dehydrogenase-O 1.2. 781 69,78%
Nucleosidase 3.2.2. 597 23,28%
Malto-oligosyltrehalose synthase 5.4.99 100 93,00%
  1. Functional classes of carbohydrate metabolism genes (assigned according to the Enzyme Nomenclature classification obtained from the IMG database [14]), number of genes in each class, and their tendency towards localization within carbohydrate metabolism cassettes (cassette propensity)