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CAZyme Information: MGYG000001700_00173

You are here: Home > Sequence: MGYG000001700_00173

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 Citrobacter_A sedlakii
Lineage Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales; Enterobacteriaceae; Citrobacter_A; Citrobacter_A sedlakii
CAZyme ID MGYG000001700_00173
CAZy Family CBM48
CAZyme Description Glycogen operon protein GlgX
CAZyme Property
Protein Length CGC Molecular Weight Isoelectric Point
693 MGYG000001700_1|CGC2 78444.94 4.6851
Genome Property
Genome Assembly ID Genome Size Genome Type Country Continent
MGYG000001700 4631466 Isolate not provided not provided
Gene Location Start: 170923;  End: 173004  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 190 538 5.6e-166 0.9971509971509972
CBM48 18 110 5.8e-19 0.9210526315789473

CDD Domains      download full data without filtering help

Cdd ID Domain E-Value qStart qEnd sStart sEnd Domain Description
COG1523 PulA 0.0 11 692 12 691
Pullulanase/glycogen debranching enzyme [Carbohydrate transport and metabolism].
PRK14510 PRK14510 0.0 14 652 11 648
bifunctional glycogen debranching protein GlgX/4-alpha-glucanotransferase.
PRK03705 PRK03705 0.0 11 613 4 595
glycogen debranching protein GlgX.
TIGR02100 glgX_debranch 0.0 13 692 1 688
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]
cd11326 AmyAc_Glg_debranch 0.0 153 580 1 432
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.

CAZyme Hits      help

Hit ID E-Value Query Start Query End Hit Start Hit End
QUC32255.1 0.0 1 693 1 693
CBG88306.1 0.0 4 693 2 691
QBY28133.1 0.0 4 693 2 691
AKE97355.1 0.0 4 693 2 691
AHB72612.1 0.0 4 693 2 691

PDB Hits      download full data without filtering help

Hit ID E-Value Query Start Query End Hit Start Hit End Description
2VNC_A 2.79e-222 11 692 12 715
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 1.27e-191 11 613 4 595
Crystalstructure of Glycogen Debranching Enzyme GlgX from Escherichia coli K-12 [Escherichia coli K-12]
4J7R_A 1.18e-125 14 665 60 781
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]
1BF2_A 3.09e-108 15 656 3 702
StructureOf Pseudomonas Isoamylase [Pseudomonas amyloderamosa]
2WAN_A 6.29e-38 19 660 318 890
Pullulanasefrom Bacillus acidopullulyticus [Bacillus acidopullulyticus]

Swiss-Prot Hits      download full data without filtering help

Hit ID E-Value Query Start Query End Hit Start Hit End Description
P0A4Y5 5.82e-230 11 692 19 719
Glycogen operon protein GlgX homolog OS=Mycobacterium bovis (strain ATCC BAA-935 / AF2122/97) OX=233413 GN=glgX PE=3 SV=1
P9WQ25 5.82e-230 11 692 19 719
Glycogen operon protein GlgX homolog OS=Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) OX=83332 GN=glgX PE=1 SV=1
P9WQ24 5.82e-230 11 692 19 719
Glycogen operon protein GlgX homolog OS=Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh) OX=83331 GN=glgX PE=3 SV=1
A8GKU9 1.49e-204 10 660 3 631
Glycogen debranching enzyme OS=Serratia proteamaculans (strain 568) OX=399741 GN=glgX PE=3 SV=1
A1JSI8 1.91e-197 11 613 4 597
Glycogen debranching enzyme OS=Yersinia enterocolitica serotype O:8 / biotype 1B (strain NCTC 13174 / 8081) OX=393305 GN=glgX PE=3 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
1.000061 0.000000 0.000000 0.000000 0.000000 0.000000

TMHMM  Annotations      help

There is no transmembrane helices in MGYG000001700_00173.