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CAZyme Information: MGYG000000378_00323

You are here: Home > Sequence: MGYG000000378_00323

Basic Information | Genomic context | Full Sequence | Enzyme annotations |  CAZy signature domains |  CDD domains | CAZyme hits | PDB hits | Swiss-Prot hits | SignalP and Lipop annotations | TMHMM annotations

Basic Information help

Species
Lineage Bacteria; Firmicutes_A; Clostridia; Lachnospirales; Lachnospiraceae; ;
CAZyme ID MGYG000000378_00323
CAZy Family GH13
CAZyme Description Glycogen operon protein GlgX
CAZyme Property
Protein Length CGC Molecular Weight Isoelectric Point
707 MGYG000000378_4|CGC1 80078.92 4.8821
Genome Property
Genome Assembly ID Genome Size Genome Type Country Continent
MGYG000000378 2604862 MAG Sweden Europe
Gene Location Start: 26535;  End: 28658  Strand: -

Full Sequence      Download help

Enzyme Prediction      help

EC 3.2.1.68 3.2.1.- 2.4.1.25

CAZyme Signature Domains help

Family Start End Evalue family coverage
GH13 189 543 4.5e-154 0.9971509971509972

CDD Domains      download full data without filtering help

Cdd ID Domain E-Value qStart qEnd sStart sEnd Domain Description
cd11326 AmyAc_Glg_debranch 0.0 153 585 1 433
Alpha amylase catalytic domain found in glycogen debranching enzymes. Debranching enzymes facilitate the breakdown of glycogen through glucosyltransferase and glucosidase activity. These activities are performed by a single enzyme in mammals, yeast, and some bacteria, but by two distinct enzymes in Escherichia coli and other bacteria. Debranching enzymes perform two activities: 4-alpha-D-glucanotransferase (EC 2.4.1.25) and amylo-1,6-glucosidase (EC 3.2.1.33). 4-alpha-D-glucanotransferase catalyzes the endohydrolysis of 1,6-alpha-D-glucoside linkages at points of branching in chains of 1,4-linked alpha-D-glucose residues. Amylo-alpha-1,6-glucosidase catalyzes the endohydrolysis of 1,6-alpha-D-glucoside linkages at points of branching in chains of 1,4-linked alpha-D-glucose residues. In Escherichia coli, GlgX is the debranching enzyme and malQ is the 4-alpha-glucanotransferase. TreX, an archaeal glycogen-debranching enzyme has dual activities like mammals and yeast, but is structurally similar to GlgX. TreX exists in two oligomeric states, a dimer and tetramer. Isoamylase (EC 3.2.1.68) is one of the starch-debranching enzymes that catalyzes the hydrolysis of alpha-1,6-glucosidic linkages specific in alpha-glucans such as amylopectin or glycogen and their beta-limit dextrins. 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.
TIGR02100 glgX_debranch 0.0 36 694 8 686
glycogen debranching enzyme GlgX. This family consists of the GlgX protein from the E. coli glycogen operon and probable equivalogs from other prokaryotic species. GlgX is not required for glycogen biosynthesis, but instead acts as a debranching enzyme for glycogen catabolism. This model distinguishes GlgX from pullanases and other related proteins that also operate on alpha-1,6-glycosidic linkages. In the wide band between the trusted and noise cutoffs are functionally similar enzymes, mostly from plants, that act similarly but usually are termed isoamylase. [Energy metabolism, Biosynthesis and degradation of polysaccharides]
COG1523 PulA 0.0 44 694 32 689
Pullulanase/glycogen debranching enzyme [Carbohydrate transport and metabolism].
PRK03705 PRK03705 3.94e-173 26 591 3 567
glycogen debranching protein GlgX.
PRK14510 PRK14510 1.50e-149 27 590 8 574
bifunctional glycogen debranching protein GlgX/4-alpha-glucanotransferase.

CAZyme Hits      help

Hit ID E-Value Query Start Query End Hit Start Hit End
QDW75570.1 0.0 16 696 18 699
QRT49446.1 0.0 18 695 17 696
QEK18074.1 0.0 8 694 14 701
CBL26134.1 0.0 7 694 1 690
ADL33971.1 0.0 19 694 36 715

PDB Hits      download full data without filtering help

Hit ID E-Value Query Start Query End Hit Start Hit End Description
4J7R_A 6.06e-158 5 609 32 727
CrystalStructure of Chlamydomonas reinhardtii Isoamylase 1 (ISA1) [Chlamydomonas reinhardtii],4J7R_B Crystal Structure of Chlamydomonas reinhardtii Isoamylase 1 (ISA1) [Chlamydomonas reinhardtii],4OKD_A Crystal Structure of Chlamydomonas reinhardtii Isoamylase 1 (ISA1) in complex with maltoheptaose [Chlamydomonas reinhardtii],4OKD_B Crystal Structure of Chlamydomonas reinhardtii Isoamylase 1 (ISA1) in complex with maltoheptaose [Chlamydomonas reinhardtii]
2VNC_A 1.71e-156 26 694 11 713
Crystalstructure of Glycogen Debranching enzyme TreX from Sulfolobus solfataricus [Saccharolobus solfataricus],2VNC_B Crystal structure of Glycogen Debranching enzyme TreX from Sulfolobus solfataricus [Saccharolobus solfataricus],2VR5_A Crystal structure of Trex from Sulfolobus Solfataricus in complex with acarbose intermediate and glucose [Saccharolobus solfataricus],2VR5_B Crystal structure of Trex from Sulfolobus Solfataricus in complex with acarbose intermediate and glucose [Saccharolobus solfataricus],2VUY_A Crystal structure of Glycogen Debranching exzyme TreX from Sulfolobus solfatarius [Saccharolobus solfataricus],2VUY_B Crystal structure of Glycogen Debranching exzyme TreX from Sulfolobus solfatarius [Saccharolobus solfataricus],7EAV_A Chain A, Glycogen debranching enzyme [Saccharolobus solfataricus],7EAV_B Chain B, Glycogen debranching enzyme [Saccharolobus solfataricus]
2WSK_A 2.90e-114 44 588 21 564
Crystalstructure of Glycogen Debranching Enzyme GlgX from Escherichia coli K-12 [Escherichia coli K-12]
1BF2_A 3.66e-73 109 589 106 633
StructureOf Pseudomonas Isoamylase [Pseudomonas amyloderamosa]
3WDH_A 6.72e-49 32 589 106 621
Crystalstructure of Pullulanase from Anoxybacillus sp. LM18-11 [Anoxybacillus sp. LM18-11],3WDI_A Crystal structure of Pullulanase complexed with maltotriose from Anoxybacillus sp. LM18-11 [Anoxybacillus sp. LM18-11],3WDJ_A Crystal structure of Pullulanase complexed with maltotetraose from Anoxybacillus sp. LM18-11 [Anoxybacillus sp. LM18-11]

Swiss-Prot Hits      download full data without filtering help

Hit ID E-Value Query Start Query End Hit Start Hit End Description
O22637 8.35e-167 36 564 89 645
Isoamylase SU1, chloroplastic OS=Zea mays OX=4577 GN=SU1 PE=1 SV=1
Q9M0S5 1.12e-166 25 591 83 665
Isoamylase 3, chloroplastic OS=Arabidopsis thaliana OX=3702 GN=ISA3 PE=1 SV=2
D0TZF0 2.51e-166 36 671 105 756
Isoamylase 1, chloroplastic OS=Oryza sativa subsp. japonica OX=39947 GN=ISA1 PE=1 SV=1
O04196 3.37e-161 17 564 60 637
Isoamylase 1, chloroplastic OS=Arabidopsis thaliana OX=3702 GN=ISA1 PE=1 SV=1
B9G434 6.34e-158 20 591 93 682
Isoamylase 3, chloroplastic OS=Oryza sativa subsp. japonica OX=39947 GN=ISA3 PE=2 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
1.000060 0.000000 0.000000 0.000000 0.000000 0.000000

TMHMM  Annotations      help

There is no transmembrane helices in MGYG000000378_00323.