dbCAN-seq: a database of CAZyme sequence and annotation

Basic Information help

Species

Streptococcus sobrinus

Lineage

Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae; Streptococcus; Streptococcus sobrinus

CAZyme ID

MGYG000004770_00656

CAZy Family

GH13

CAZyme Description

Oligo-1,6-glucosidase

CAZyme Property

Protein Length	CGC	Molecular Weight	Isoelectric Point
544	MGYG000004770_11\|CGC1	62660.28	4.6891

Genome Property

Genome Assembly ID	Genome Size	Genome Type	Country	Continent
MGYG000004770	2052412	MAG	China	Asia

Gene Location

Start: 8894; End: 10528 Strand: +

Enzyme Prediction help

No EC number prediction in MGYG000004770_00656.

CAZyme Signature Domains help

Family	Start	End	Evalue	family coverage
GH13	28	361	1.8e-133	0.994269340974212

CDD Domains download full data without filtering help

Cdd ID	Domain	E-Value	qStart	qEnd	sStart	sEnd	Domain Description
cd11333	AmyAc_SI_OligoGlu_DGase	0.0	7	459	1	428	Alpha amylase catalytic domain found in Sucrose isomerases, oligo-1,6-glucosidase (also called isomaltase; sucrase-isomaltase; alpha-limit dextrinase), dextran glucosidase (also called glucan 1,6-alpha-glucosidase), and related proteins. The sucrose isomerases (SIs) Isomaltulose synthase (EC 5.4.99.11) and Trehalose synthase (EC 5.4.99.16) catalyze the isomerization of sucrose and maltose to produce isomaltulose and trehalulose, respectively. Oligo-1,6-glucosidase (EC 3.2.1.10) hydrolyzes the alpha-1,6-glucosidic linkage of isomaltooligosaccharides, pannose, and dextran. Unlike alpha-1,4-glucosidases (EC 3.2.1.20), it fails to hydrolyze the alpha-1,4-glucosidic bonds of maltosaccharides. Dextran glucosidase (DGase, EC 3.2.1.70) hydrolyzes alpha-1,6-glucosidic linkages at the non-reducing end of panose, isomaltooligosaccharides and dextran to produce alpha-glucose.The common reaction chemistry of the alpha-amylase family enzymes is based on a two-step acid catalytic mechanism that requires two critical carboxylates: one acting as a general acid/base (Glu) and the other as a nucleophile (Asp). Both hydrolysis and transglycosylation proceed via the nucleophilic substitution reaction between the anomeric carbon, C1 and a nucleophile. Both enzymes contain the three catalytic residues (Asp, Glu and Asp) common to the alpha-amylase family as well as two histidine residues which are predicted to be critical to binding the glucose residue adjacent to the scissile bond in the substrates. The Alpha-amylase family comprises the largest family of glycoside hydrolases (GH), with the majority of enzymes acting on starch, glycogen, and related oligo- and polysaccharides. These proteins catalyze the transformation of alpha-1,4 and alpha-1,6 glucosidic linkages with retention of the anomeric center. The protein is described as having 3 domains: A, B, C. A is a (beta/alpha) 8-barrel; B is a loop between the beta 3 strand and alpha 3 helix of A; C is the C-terminal extension characterized by a Greek key. The majority of the enzymes have an active site cleft found between domains A and B where a triad of catalytic residues performs catalysis. Other members of this family have lost the catalytic activity as in the case of the human 4F2hc, or only have 2 residues that serve as the catalytic nucleophile and the acid/base, such as Thermus A4 beta-galactosidase with 2 Glu residues (GH42) and human alpha-galactosidase with 2 Asp residues (GH31). The family members are quite extensive and include: alpha amylase, maltosyltransferase, cyclodextrin glycotransferase, maltogenic amylase, neopullulanase, isoamylase, 1,4-alpha-D-glucan maltotetrahydrolase, 4-alpha-glucotransferase, oligo-1,6-glucosidase, amylosucrase, sucrose phosphorylase, and amylomaltase.
TIGR02403	trehalose_treC	0.0	5	499	1	502	alpha,alpha-phosphotrehalase. Trehalose is a glucose disaccharide that serves in many biological systems as a compatible solute for protection against hyperosmotic and thermal stress. This family describes trehalose-6-phosphate hydrolase, product of the treC (or treA) gene, which is often found together with a trehalose uptake transporter and a trehalose operon repressor.
PRK10933	PRK10933	3.66e-158	5	499	7	508	trehalose-6-phosphate hydrolase; Provisional
cd11331	AmyAc_OligoGlu_like	6.88e-151	4	467	1	450	Alpha amylase catalytic domain found in oligo-1,6-glucosidase (also called isomaltase; sucrase-isomaltase; alpha-limit dextrinase) and related proteins. Oligo-1,6-glucosidase (EC 3.2.1.10) hydrolyzes the alpha-1,6-glucosidic linkage of isomalto-oligosaccharides, pannose, and dextran. Unlike alpha-1,4-glucosidases (EC 3.2.1.20), it fails to hydrolyze the alpha-1,4-glucosidic bonds of maltosaccharides. The Alpha-amylase family comprises the largest family of glycoside hydrolases (GH), with the majority of enzymes acting on starch, glycogen, and related oligo- and polysaccharides. These proteins catalyze the transformation of alpha-1,4 and alpha-1,6 glucosidic linkages with retention of the anomeric center. The protein is described as having 3 domains: A, B, C. A is a (beta/alpha) 8-barrel; B is a loop between the beta 3 strand and alpha 3 helix of A; C is the C-terminal extension characterized by a Greek key. The majority of the enzymes have an active site cleft found between domains A and B where a triad of catalytic residues (Asp, Glu and Asp) performs catalysis. Other members of this family have lost the catalytic activity as in the case of the human 4F2hc, or only have 2 residues that serve as the catalytic nucleophile and the acid/base, such as Thermus A4 beta-galactosidase with 2 Glu residues (GH42) and human alpha-galactosidase with 2 Asp residues (GH31). The family members are quite extensive and include: alpha amylase, maltosyltransferase, cyclodextrin glycotransferase, maltogenic amylase, neopullulanase, isoamylase, 1,4-alpha-D-glucan maltotetrahydrolase, 4-alpha-glucotransferase, oligo-1,6-glucosidase, amylosucrase, sucrose phosphorylase, and amylomaltase.
cd11328	AmyAc_maltase	1.28e-136	2	462	1	464	Alpha amylase catalytic domain found in maltase (also known as alpha glucosidase) and related proteins. Maltase (EC 3.2.1.20) hydrolyzes the terminal, non-reducing (1->4)-linked alpha-D-glucose residues in maltose, releasing alpha-D-glucose. In most cases, maltase is equivalent to alpha-glucosidase, but the term "maltase" emphasizes the disaccharide nature of the substrate from which glucose is cleaved, and the term "alpha-glucosidase" emphasizes the bond, whether the substrate is a disaccharide or polysaccharide. The Alpha-amylase family comprises the largest family of glycoside hydrolases (GH), with the majority of enzymes acting on starch, glycogen, and related oligo- and polysaccharides. These proteins catalyze the transformation of alpha-1,4 and alpha-1,6 glucosidic linkages with retention of the anomeric center. The protein is described as having 3 domains: A, B, C. A is a (beta/alpha) 8-barrel; B is a loop between the beta 3 strand and alpha 3 helix of A; C is the C-terminal extension characterized by a Greek key. The majority of the enzymes have an active site cleft found between domains A and B where a triad of catalytic residues (Asp, Glu and Asp) performs catalysis. Other members of this family have lost the catalytic activity as in the case of the human 4F2hc, or only have 2 residues that serve as the catalytic nucleophile and the acid/base, such as Thermus A4 beta-galactosidase with 2 Glu residues (GH42) and human alpha-galactosidase with 2 Asp residues (GH31). The family members are quite extensive and include: alpha amylase, maltosyltransferase, cyclodextrin glycotransferase, maltogenic amylase, neopullulanase, isoamylase, 1,4-alpha-D-glucan maltotetrahydrolase, 4-alpha-glucotransferase, oligo-1,6-glucosidase, amylosucrase, sucrose phosphorylase, and amylomaltase.

CAZyme Hits help

Hit ID	Query Start	Query End	Hit Start	Hit End
AWN21016.1	1	544	1	544
SQG13797.1	1	544	1	544
AWN18677.1	1	544	1	544
SQG20398.1	1	544	1	544
AWN61853.1	1	544	1	544

PDB Hits download full data without filtering help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
2ZE0_A	5.64e-178	1	539	1	551	Alpha-glucosidaseGSJ [Geobacillus sp. HTA-462]
5ZCB_A	1.19e-174	1	539	1	552	Crystalstructure of Alpha-glucosidase [Bacillus sp. (in: Bacteria)]
5ZCC_A	3.39e-174	1	539	1	552	Crystalstructure of Alpha-glucosidase in complex with maltose [Bacillus sp. (in: Bacteria)],5ZCD_A Crystal structure of Alpha-glucosidase in complex with maltotriose [Bacillus sp. (in: Bacteria)],5ZCE_A Crystal structure of Alpha-glucosidase in complex with maltotetraose [Bacillus sp. (in: Bacteria)]
1UOK_A	9.91e-164	1	539	1	555	CrystalStructure Of B. Cereus Oligo-1,6-Glucosidase [Bacillus cereus]
4M8U_A	9.70e-162	4	499	3	516	TheStructure of MalL mutant enzyme V200A from Bacillus subtilus [Bacillus subtilis subsp. subtilis str. 168]

Swiss-Prot Hits download full data without filtering help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
O05242	3.49e-168	1	498	1	508	Probable oligo-1,6-glucosidase 3 OS=Bacillus subtilis (strain 168) OX=224308 GN=yugT PE=3 SV=2
P29094	4.55e-168	1	520	1	535	Oligo-1,6-glucosidase OS=Parageobacillus thermoglucosidasius OX=1426 GN=malL PE=1 SV=1
Q9K8U9	5.26e-164	1	498	1	512	Oligo-1,6-glucosidase OS=Alkalihalobacillus halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125) OX=272558 GN=malL PE=3 SV=1
P21332	5.43e-163	1	539	1	555	Oligo-1,6-glucosidase OS=Bacillus cereus OX=1396 GN=malL PE=1 SV=1
O06994	2.20e-160	4	499	3	516	Oligo-1,6-glucosidase 1 OS=Bacillus subtilis (strain 168) OX=224308 GN=malL PE=1 SV=1

SignalP and Lipop Annotations help

This protein is predicted as OTHER

Other	SP_Sec_SPI	LIPO_Sec_SPII	TAT_Tat_SPI	TATLIP_Sec_SPII	PILIN_Sec_SPIII
1.000089	0.000000	0.000000	0.000000	0.000000	0.000000

TMHMM Annotations help

There is no transmembrane helices in MGYG000004770_00656.

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