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Table 1 Genes in the predicted pectinase gene cluster in Caldicellulosiruptor bescii

From: Deletion of a gene cluster encoding pectin degrading enzymes in Caldicellulosiruptor bescii reveals an important role for pectin in plant biomass recalcitrance


Predicted gene product

CAZy module architecture

Gene location/size

pecA (Cbes1855)

Pectate disaccharide lyase (EC:


1933527-1935488/1.962 kb

pecB (Cbes1854)

Pectate lyase (EC:


1932088-1933470/1.383 kb

pecC (Cbes1853)

Rhamnogalacturonan lyase


1929397-1931898/2.502 kb

pecR (Cbes1856)

AraC family transcriptional regulator


1935834-1938215/2.382 kb

  1. Cbes1853, 1854, and 1855 are predicted to encode extracellular CAZy proteins [19] which contain signal peptides at the 5'- end and a CBM. The abbreviations are: CAZy, carbohydrate active enzyme; EC, enzyme commission number; SP, signal peptide; PL3, PL9, and PL11, polysaccharide lyase family of 3, 9, and 11; CBM, carbohydrate-binding module; CBM3, carbohydrate-binding module of family 3; CBM_4_9, putative pectin-binding module [12],[13].