Rhamnogalacturonan lyase of the polysaccharide lyase family 11. The rhamnogalacturonan lyase of the polysaccharide lyase family 11 (RGL11) cleaves glycoside bonds in polygalacturonan as well as RG (rhamnogalacturonan) type-I through a beta-elimination reaction. Functionally characterized members of this family, YesW and YesX from Bacillus subtilis, cleave glycoside bonds between rhamnose and galacturonic acid residues in the RG-I region of plant cell wall pectin. YesW and YesX work synergistically, with YesW cleaving the glycoside bond of the RG chain endolytically, and YesX converting the resultant oligosaccharides through an exotype reaction. This domain is sometimes found in architectures with non-catalytic carbohydrate-binding modules (CBMs). There are two types of RG lyases, which both cleave the alpha-1,4 bonds of the RG-I main chain through a beta-elimination reaction, but belong to two structurally unrelated polysaccharide lyase (PL) families, 4 and 11.

Glycosyl hydrolase family 43. This glycosyl hydrolase family 43 (GH43)-like subfamily includes uncharacterized enzymes similar to those with beta-1,4-xylosidase (xylan 1,4-beta-xylosidase; EC 3.2.1.37), beta-1,3-xylosidase (EC 3.2.1.-), alpha-L-arabinofuranosidase (EC 3.2.1.55), arabinanase (EC 3.2.1.99), xylanase (EC 3.2.1.8), endo-alpha-L-arabinanase and galactan 1,3-beta-galactosidase (EC 3.2.1.145) activities. These are inverting enzymes (i.e. they invert the stereochemistry of the anomeric carbon atom of the substrate) that have an aspartate as the catalytic general base, a glutamate as the catalytic general acid and another aspartate that is responsible for pKa modulation and orienting the catalytic acid. Many of the enzymes in this family display both alpha-L-arabinofuranosidase and beta-D-xylosidase activity using aryl-glycosides as substrates. A common structural feature of GH43 enzymes is a 5-bladed beta-propeller domain that contains the catalytic acid and catalytic base. A long V-shaped groove, partially enclosed at one end, forms a single extended substrate-binding surface across the face of the propeller.

Glycosyl Hydrolase Family 88. Unsaturated glucuronyl hydrolase catalyzes the hydrolytic release of unsaturated glucuronic acids from oligosaccharides (EC:3.2.1.-) produced by the reactions of polysaccharide lyases.

Rhamnogalacturonyl hydrolase YesR [Carbohydrate transport and metabolism].

Rhamnogalacturonan I lyases beta-sheet domain. This is the beta-sheet domain found in rhamnogalacturonan (RG) lyases, which are responsible for an initial cleavage of the RG type I (RG-I) region of plant cell wall pectin. Polysaccharide lyase family 11 carrying this domain, such as YesW (EC:4.2.2.23) and YesX (EC:4.2.2.24), cleave glycoside bonds between rhamnose and galacturonic acid residues in RG-I through a beta-elimination reaction. Other family members carrying this domain are hemagglutinin A, lysine gingipain (Kgp) and Chitinase C (EC:3.2.1.14).

Bacilluslicheniformis Rhamnogalacturonan Lyase PL11 [Bacillus licheniformis]

Crystalstructure of rhamnogalacturonan lyase YesW at 1.40 A resolution [Bacillus subtilis],2Z8R_B Crystal structure of rhamnogalacturonan lyase YesW at 1.40 A resolution [Bacillus subtilis],2Z8S_A Crystal structure of rhamnogalacturonan lyase YesW complexed with digalacturonic acid [Bacillus subtilis],2Z8S_B Crystal structure of rhamnogalacturonan lyase YesW complexed with digalacturonic acid [Bacillus subtilis],2ZUX_A Crystal structure of rhamnogalacturonan lyase YesW complexed with rhamnose [Bacillus subtilis],2ZUX_B Crystal structure of rhamnogalacturonan lyase YesW complexed with rhamnose [Bacillus subtilis]

Crystalstructure of exotype rhamnogalacturonan lyase YesX [Bacillus subtilis]

Crystalstructure of Putative glycosyl hydrolase (NP_813087.1) from BACTEROIDES THETAIOTAOMICRON VPI-5482 at 1.80 A resolution [Bacteroides thetaiotaomicron VPI-5482]

ChainA, Putative GH105 family protein [Salmonella enterica subsp. enterica serovar Paratyphi A],3QWT_B Chain B, Putative GH105 family protein [Salmonella enterica subsp. enterica serovar Paratyphi A],3QWT_C Chain C, Putative GH105 family protein [Salmonella enterica subsp. enterica serovar Paratyphi A],3QWT_D Chain D, Putative GH105 family protein [Salmonella enterica subsp. enterica serovar Paratyphi A]

Rhamnogalacturonan endolyase YesW OS=Bacillus subtilis (strain 168) OX=224308 GN=yesW PE=1 SV=1

Rhamnogalacturonan exolyase YesX OS=Bacillus subtilis (strain 168) OX=224308 GN=yesX PE=1 SV=1

Unsaturated rhamnogalacturonyl hydrolase YteR OS=Bacillus subtilis (strain 168) OX=224308 GN=yteR PE=1 SV=1

Unsaturated 3S-rhamnoglycuronyl hydrolase OS=Alteromonas sp. (strain LOR) OX=1537994 GN=LOR_28 PE=1 SV=1

Unsaturated rhamnogalacturonyl hydrolase YesR OS=Bacillus subtilis (strain 168) OX=224308 GN=yesR PE=1 SV=1