DOMON-like type 9 carbohydrate binding module of xylanases. Family 9 carbohydrate-binding modules (CBM9) play a role in the microbial degradation of cellulose and hemicellulose (materials found in plants). The domain has previously been called cellulose-binding domain. The polysaccharide binding sites of CBMs with available 3D structure have been found to be either flat surfaces with interactions formed by predominantly aromatic residues (tryptophan and tyrosine), or extended shallow grooves. The CBM9 domain frequently occurs in tandem repeats; members found in this subfamily typically co-occur with glycosyl hydrolase family 10 domains and are annotated as endo-1,4-beta-xylanases. CBM9 from Thermotoga maritima xylanase 10A is reported to have specificity for polysaccharide reducing ends.

Glycosyl hydrolase family 10.

Glycosyl hydrolase family 10.

Endo-1,4-beta-xylanase, GH35 family [Carbohydrate transport and metabolism].

Carbohydrate family 9 binding domain-like. CBM9_1 is a C-terminal domain on bacterial xylanase proteins, and it is tandemly repeated in a number of family-members. The CBM9 module binds to amorphous and crystalline cellulose and a range of soluble di- and monosaccharides as well as to cello- and xylo- oligomers of different degrees of polymerization. Comparison of the glucose and cellobiose complexes during crystallisation reveals surprising differences in binding of these two substrates by CBM9-2. Cellobiose was found to bind in a distinct orientation from glucose, while still maintaining optimal stacking and electrostatic interactions with the reducing end sugar.

Structureof GH10 from Paenibacillus barcinonensis [Paenibacillus barcinonensis],4W8L_B Structure of GH10 from Paenibacillus barcinonensis [Paenibacillus barcinonensis],4W8L_C Structure of GH10 from Paenibacillus barcinonensis [Paenibacillus barcinonensis]

Apsychrophilic glycoside hydrolase family 10 endo-beta-1,4-xylanase [Aegilops speltoides subsp. speltoides],5AY7_B A psychrophilic glycoside hydrolase family 10 endo-beta-1,4-xylanase [Aegilops speltoides subsp. speltoides],5D4Y_A A psychrophilic glycoside hydrolase family 10 endo-beta-1,4-xylanase [environmental samples],5D4Y_B A psychrophilic glycoside hydrolase family 10 endo-beta-1,4-xylanase [environmental samples]

Structureof Caldicellulosiruptor danielii GH10 module of glycoside hydrolase WP_045175321 [Caldicellulosiruptor danielii],6D5C_B Structure of Caldicellulosiruptor danielii GH10 module of glycoside hydrolase WP_045175321 [Caldicellulosiruptor danielii],6D5C_C Structure of Caldicellulosiruptor danielii GH10 module of glycoside hydrolase WP_045175321 [Caldicellulosiruptor danielii]

Crystalstructure of XynB, an intracellular xylanase from Paenibacillus barcinonensis [Paenibacillus barcinonensis],3EMQ_A Crystal structure of xilanase XynB from Paenibacillus barcelonensis complexed with an inhibitor [Paenibacillus barcinonensis],3EMZ_A Crystal structure of xylanase XynB from Paenibacillus barcinonensis complexed with a conduramine derivative [Paenibacillus barcinonensis]

Crystalstructure of N-terminal domain of bifunctional CbXyn10C [Caldicellulosiruptor bescii DSM 6725]

Exoglucanase XynX OS=Acetivibrio thermocellus OX=1515 GN=xynX PE=3 SV=1

Endo-1,4-beta-xylanase A OS=Thermoanaerobacterium saccharolyticum OX=28896 GN=xynA PE=1 SV=1

Endo-1,4-beta-xylanase A OS=Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8) OX=243274 GN=xynA PE=1 SV=1

Endo-1,4-beta-xylanase C OS=Paenibacillus barcinonensis OX=198119 GN=xynC PE=1 SV=1

Endo-1,4-beta-xylanase A OS=Thermotoga neapolitana OX=2337 GN=xynA PE=1 SV=1