N-terminal Early set domain associated with the catalytic domain of putative esterases. E or "early" set domains are associated with the catalytic domain of esterase at the N-terminal end. Esterases catalyze the hydrolysis of organic esters to release an alcohol or thiol and acid. The term esterase can be applied to enzymes that hydrolyze carboxylate, phosphate and sulphate esters, but is more often restricted to the first class of substrate. The N-terminal domain of esterase may be related to the immunoglobulin and/or fibronectin type III superfamilies. These domains are associated with different types of catalytic domains at either the N-terminal or C-terminal end and may be involved in homodimeric/tetrameric/dodecameric interactions. Members of this family include members of the alpha amylase family, sialidase, galactose oxidase, cellulase, cellulose, hyaluronate lyase, chitobiase, and chitinase, among others.

Enterochelin esterase or related enzyme [Inorganic ion transport and metabolism].

Putative esterase. This family contains Esterase D. However it is not clear if all members of the family have the same function. This family is related to the pfam00135 family.

S-formylglutathione hydrolase FrmB [Defense mechanisms].

Early set domain associated with the catalytic domain of sugar utilizing enzymes at either the N or C terminus. The E or "early" set domains of sugar utilizing enzymes are associated with different types of catalytic domains at either the N-terminal or C-terminal end. These domains may be related to the immunoglobulin and/or fibronectin type III superfamilies. Members of this family include alpha amylase, sialidase, galactose oxidase, cellulase, cellulose, hyaluronate lyase, chitobiase, and chitinase. A subset of these members were recently identified as members of the CBM48 (Carbohydrate Binding Module 48) family. Members of the CBM48 family include pullulanase, maltooligosyl trehalose synthase, starch branching enzyme, glycogen branching enzyme, glycogen debranching enzyme, isoamylase, and the beta subunit of AMP-activated protein kinase.

ChainA, Carbohydrate Esterase family 1 protein with an N-terminal carbohydrate binding module family 48 [Dysgonomonas mossii DSM 22836],7B5V_B Chain B, Carbohydrate Esterase family 1 protein with an N-terminal carbohydrate binding module family 48 [Dysgonomonas mossii DSM 22836],7B6B_A Chain A, Carbohydrate Esterase family 1 protein with an N-terminal carbohydrate binding module family 48 [Dysgonomonas mossii DSM 22836],7B6B_B Chain B, Carbohydrate Esterase family 1 protein with an N-terminal carbohydrate binding module family 48 [Dysgonomonas mossii DSM 22836]

Crystalstructure of the N-terminal carbohydrate binding module family 48 and ferulic acid esterase from the multi-enzyme CE1-GH62-GH10 [uncultured bacterium],6RZN_B Crystal structure of the N-terminal carbohydrate binding module family 48 and ferulic acid esterase from the multi-enzyme CE1-GH62-GH10 [uncultured bacterium]

Crystalstructure of the N-terminal carbohydrate binding module family 48 and ferulic acid esterase from the multi-enzyme CE1-GH62-GH10 [uncultured bacterium]

Crystalstructure of the N-terminal carbohydrate binding module family 48 and ferulic acid esterase from the multi-enzyme CE1-GH62-GH10 [uncultured bacterium]

ChainA, Isoamylase N-terminal domain protein [Bacteroides intestinalis DSM 17393]

Carbohydrate acetyl esterase/feruloyl esterase OS=Prevotella ruminicola (strain ATCC 19189 / JCM 8958 / 23) OX=264731 GN=axe1-6A PE=1 SV=1

Uncharacterized protein YieL OS=Escherichia coli (strain K12) OX=83333 GN=yieL PE=4 SV=3

Endo-1,4-beta-xylanase/feruloyl esterase OS=Prevotella ruminicola (strain ATCC 19189 / JCM 8958 / 23) OX=264731 GN=xyn10D-fae1A PE=1 SV=1

Endo-1,4-beta-xylanase Z OS=Acetivibrio thermocellus (strain ATCC 27405 / DSM 1237 / JCM 9322 / NBRC 103400 / NCIMB 10682 / NRRL B-4536 / VPI 7372) OX=203119 GN=xynZ PE=1 SV=3