Glycoside hydrolase 97. This domain is the catalytic region of the bacterial glycosyl-hydrolase family 97. This central part of the GH97 family protein sequences represents a typical and complete (beta/alpha)8-barrel or catalytic TIM-barrel type domain. The N- and C-terminal parts of the sequences, mainly consisting of beta-strands, form two additional non-catalytic domains. In all known glycosidases with the (beta-alpha)8-barrel fold, the amino acid residues at the active site are located on the C-termini of the beta-strands.

Glycosyl-hydrolase 97 N-terminal. This N-terminal domain of glycosyl-hydrolase-97 contributes part of the active site pocket. It is also important for contact with the catalytic and C-terminal domains of the whole.

Glycosyl-hydrolase 97 C-terminal, oligomerization. Glycosyl-hydrolase-97 is made up of three tightly linked and highly conserved globular domains. The C-terminal domain is found to be necessary for oligomerization of the whole molecule in order to create the active-site pocket and the Ca++-binding site.

The URO-D _like protein superfamily includes bacterial and eukaryotic uroporphyrinogen decarboxylases (URO-D), coenzyme M methyltransferases and other putative bacterial methyltransferases. Uroporphyrinogen decarboxylase (URO-D) decarboxylates the four acetate side chains of uroporphyrinogen III (uro-III) to create coproporphyrinogen III, an important branching point of the tetrapyrrole biosynthetic pathway. The methyltransferases represented here are important for ability of methanogenic organisms to use other compounds than carbon dioxide for reduction to methane.

Catalyticrole of the calcium ion in GH97 inverting glycoside hydrolase [Bacteroides thetaiotaomicron],3WFA_B Catalytic role of the calcium ion in GH97 inverting glycoside hydrolase [Bacteroides thetaiotaomicron]

CrystalStructure Analysis of SusB [Bacteroides thetaiotaomicron VPI-5482],2D73_B Crystal Structure Analysis of SusB [Bacteroides thetaiotaomicron VPI-5482],2ZQ0_A Crystal structure of SusB complexed with acarbose [Bacteroides thetaiotaomicron],2ZQ0_B Crystal structure of SusB complexed with acarbose [Bacteroides thetaiotaomicron]

Nativestructure of a family 97 alpha-glucosidase from Bacteroides thetaiotaomicron [Bacteroides thetaiotaomicron VPI-5482],2JKA_B Native structure of a family 97 alpha-glucosidase from Bacteroides thetaiotaomicron [Bacteroides thetaiotaomicron VPI-5482],2JKE_A Structure of a family 97 alpha-glucosidase from Bacteroides thetaiotaomicron in complex with deoxynojirimycin [Bacteroides thetaiotaomicron VPI-5482],2JKE_B Structure of a family 97 alpha-glucosidase from Bacteroides thetaiotaomicron in complex with deoxynojirimycin [Bacteroides thetaiotaomicron VPI-5482],2JKP_A Structure of a family 97 alpha-glucosidase from Bacteroides thetaiotaomicron in complex with castanospermine [Bacteroides thetaiotaomicron VPI-5482],2JKP_B Structure of a family 97 alpha-glucosidase from Bacteroides thetaiotaomicron in complex with castanospermine [Bacteroides thetaiotaomicron VPI-5482]

AGlycoside Hydrolase Family 97 enzyme from Pseudoalteromonas sp. strain K8 [Pseudoalteromonas sp. K8],5HQA_A A Glycoside Hydrolase Family 97 enzyme in complex with Acarbose from Pseudoalteromonas sp. strain K8 [Pseudoalteromonas sp. K8]

AGlycoside Hydrolase Family 97 enzyme R171K variant from Pseudoalteromonas sp. strain K8 [Pseudoalteromonas sp. K8]

Glucan 1,4-alpha-glucosidase SusB OS=Bacteroides thetaiotaomicron (strain ATCC 29148 / DSM 2079 / JCM 5827 / CCUG 10774 / NCTC 10582 / VPI-5482 / E50) OX=226186 GN=susB PE=1 SV=1

Retaining alpha-galactosidase OS=Bacteroides thetaiotaomicron (strain ATCC 29148 / DSM 2079 / JCM 5827 / CCUG 10774 / NCTC 10582 / VPI-5482 / E50) OX=226186 GN=BT_1871 PE=1 SV=1

Probable retaining alpha-galactosidase OS=Streptomyces bingchenggensis (strain BCW-1) OX=749414 GN=SBI_01652 PE=3 SV=1