Carbohydrate binding module (family 35). This is a mannan-specific carbohydrate binding domain, previously known as the X4 module. Unlike other carbohydrate binding modules, binding to substrate causes a conformational change.

Carbohydrate Binding Module 35 (CBM35); appended to several carbohydrate binding enzymes, including several glycoside hydrolase (GH) family 26 mannanase domains. This family includes carbohydrate binding module 35 (CBM35) domains that are appended to several carbohydrate binding enzymes, including periplasmic component of ABC-type sugar transport system involved in carbohydrate transport and metabolism, and several glycoside hydrolase (GH) domains, including GH26. These CBM6s are non-catalytic carbohydrate binding domains that facilitate the strong binding of the GH catalytic modules with their dedicated, insoluble substrates. Examples of proteins having CMB35s belonging to this family are mannanase A from Clostridium thermocellum (GH26), Man26B from Paenibacillus sp. BME-14 (GH26), and the multifunctional Cel44C-Man26A from Paenibacillus polymyxa GS01 (which has two GH domains, GH44 and GH26). GH26 mainly includes mannan endo-1,4-beta-mannosidase which hydrolyzes 1,4-beta-D-linkages in mannans, galacto-mannans, glucomannans, and galactoglucomannans, but displays little activity towards other plant cell wall polysaccharides. A few proteins belonging to this family have additional CBM3 domains; these CBM3s are not found in the CBM6-CBM35-CBM36_like superfamily.

Carbohydrate Binding Module 35 (CBM35) domains similar to Lmo2446. This family includes carbohydrate binding module 35 (CBM35) domains that are appended to several carbohydrate binding enzymes. Some CBM35 domains belonging to this family are appended to glycoside hydrolase (GH) family domains, including glycoside hydrolase family 31 (GH31), for example the CBM35 domain of Lmo2446, an uncharacterized protein from Listeria monocytogenes EGD-e. These CBM35s are non-catalytic carbohydrate binding domains that facilitate the strong binding of the GH catalytic modules with their dedicated, insoluble substrates. GH31 has a wide range of hydrolytic activities such as alpha-glucosidase, alpha-xylosidase, 6-alpha-glucosyltransferase, or alpha-1,4-glucan lyase, cleaving a terminal carbohydrate moiety from a substrate that may be a starch or a glycoprotein. Most characterized GH31 enzymes are alpha-glucosidases.

Carbohydrate Binding Module family 35 (CBM35); appended mainly to enzymes that bind alpha-D-galactose (CBM35-Gal), including glycoside hydrolase (GH) families GH27 and GH43. This family includes carbohydrate binding module family 35 (CBM35); these are non-catalytic carbohydrate binding domains that are appended mainly to enzymes that bind alpha-D-galactose (CBM35-Gal), including glycoside hydrolase (GH) families GH27 and GH43. Examples of proteins which contain CBM35s belonging to this family includes the CBM35 of an exo-beta-1,3-galactanase from Phanerochaete chrysosporium 9 (Pc1,3Gal43A) which is appended to a GH43 domain, and the CBM35 domain of two bifunctional proteins with beta-L-arabinopyranosidase/alpha-D-galactopyranosidase activities from Fusarium oxysporum 12S, Foap1 and Foap2 (Fo/AP1 and Fo/AP2), that are appended to GH27 domains. CBM35s are unique in that they display conserved specificity through extensive sequence similarity but divergent function through their appended catalytic modules. They are known to bind alpha-D-galactose (Gal), mannan (Man), xylan, glucuronic acid (GlcA), a beta-polymer of mannose, and possibly glucans, forming four subfamilies based on general ligand specificities (galacto, urono, manno, and gluco configurations). Some CBM35s bind their ligands in a calcium-dependent manner. In contrast to most CBMs that are generally rigid proteins, CBM35 undergoes significant conformational change upon ligand binding. GH43 includes beta-xylosidases and beta-xylanases, using aryl-glycosides as substrates, while family GH27 includes alpha-galactosidases, alpha-N-acetylgalactosaminidases, and isomaltodextranases.

Carbohydrate Binding Module 6 (CBM6) and CBM35_like superfamily. Carbohydrate binding module family 6 (CBM6, family 6 CBM), also known as cellulose binding domain family VI (CBD VI), and related CBMs (CBM35 and CBM36). These are non-catalytic carbohydrate binding domains found in a range of enzymes that display activities against a diverse range of carbohydrate targets, including mannan, xylan, beta-glucans, cellulose, agarose, and arabinans. These domains facilitate the strong binding of the appended catalytic modules to their dedicated, insoluble substrates. Many of these CBMs are associated with glycoside hydrolase (GH) domains. CBM6 is an unusual CBM as it represents a chimera of two distinct binding sites with different modes of binding: binding site I within the loop regions and binding site II on the concave face of the beta-sandwich fold. CBM36s are calcium-dependent xylan binding domains. CBM35s display conserved specificity through extensive sequence similarity, but divergent function through their appended catalytic modules. This alignment model also contains the C-terminal domains of bacterial insecticidal toxins, where they may be involved in determining insect specificity through carbohydrate binding functionality.

Exo-mannosidasefrom Cellvibrio mixtus [Cellvibrio mixtus],1UZ4_A Common inhibition of beta-glucosidase and beta-mannosidase by isofagomine lactam reflects different conformational intineraries for glucoside and mannoside hydrolysis [Cellvibrio mixtus],7ODJ_AAA Chain AAA, Man5A [Cellvibrio mixtus]

Nativestructure of endo-1,4-beta-D-mannanase from Thermotoga petrophila RKU-1 [Thermotoga petrophila RKU-1],3PZG_A I222 crystal form of the hyperthermostable endo-1,4-beta-D-mannanase from Thermotoga petrophila RKU-1 [Thermotoga petrophila RKU-1],3PZI_A Structure of the hyperthermostable endo-1,4-beta-D-mannanase from Thermotoga petrophila RKU-1 in complex with beta-D-glucose [Thermotoga petrophila RKU-1],3PZM_A Structure of the hyperthermostable endo-1,4-beta-D-mannanase from Thermotoga petrophila RKU-1 with three glycerol molecules [Thermotoga petrophila RKU-1],3PZN_A Structure of the hyperthermostable endo-1,4-beta-D-mannanase from Thermotoga petrophila RKU-1 with citrate and glycerol [Thermotoga petrophila RKU-1],3PZO_A Structure of the hyperthermostable endo-1,4-beta-D-mannanase from Thermotoga petrophila RKU-1 in complex with three maltose molecules [Thermotoga petrophila RKU-1],3PZQ_A Structure of the hyperthermostable endo-1,4-beta-D-mannanase from Thermotoga petrophila RKU-1 with maltose and glycerol [Thermotoga petrophila RKU-1]

X-raystructure of the endo-beta-1,4-mannanase from Thermotoga petrophila [Thermotoga petrophila RKU-1]

CrystalStructure of Glycoside Hydrolase Family 5 Mannosidase from Rhizomucor miehei [Rhizomucor miehei],4LYP_B Crystal Structure of Glycoside Hydrolase Family 5 Mannosidase from Rhizomucor miehei [Rhizomucor miehei]

GlycosideHydrolase Family 5 Mannosidase from Rhizomucor miehei, E301A mutant [Rhizomucor miehei]

Mannan endo-1,4-beta-mannosidase A OS=Piromyces sp. OX=45796 GN=MANA PE=2 SV=1

Mannan endo-1,4-beta-mannosidase 5 OS=Solanum lycopersicum OX=4081 GN=MAN5 PE=2 SV=1

Mannan endo-1,4-beta-mannosidase 2 OS=Solanum lycopersicum OX=4081 GN=MAN2 PE=2 SV=2

Mannan endo-1,4-beta-mannosidase B OS=Piromyces sp. OX=45796 GN=MANB PE=2 SV=1

Mannan endo-1,4-beta-mannosidase 1 OS=Arabidopsis thaliana OX=3702 GN=MAN1 PE=2 SV=1