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CAZyme Information: MGYG000000638_01050

You are here: Home > Sequence: MGYG000000638_01050

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 Lachnospira sp900547255
Lineage Bacteria; Firmicutes_A; Clostridia; Lachnospirales; Lachnospiraceae; Lachnospira; Lachnospira sp900547255
CAZyme ID MGYG000000638_01050
CAZy Family GH13
CAZyme Description Glycogen operon protein GlgX
CAZyme Property
Protein Length CGC Molecular Weight Isoelectric Point
616 MGYG000000638_19|CGC1 71139.37 6.4654
Genome Property
Genome Assembly ID Genome Size Genome Type Country Continent
MGYG000000638 2352186 MAG Madagascar Africa
Gene Location Start: 6276;  End: 8126  Strand: +

Full Sequence      Download help

Enzyme Prediction      help

No EC number prediction in MGYG000000638_01050.

CAZyme Signature Domains help

Family Start End Evalue family coverage
GH13 261 443 2.5e-51 0.5954415954415955

CDD Domains      download full data without filtering help

Cdd ID Domain E-Value qStart qEnd sStart sEnd Domain Description
cd11326 AmyAc_Glg_debranch 1.54e-130 115 485 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 4.35e-112 9 601 2 688
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]
COG1523 PulA 5.58e-110 6 603 12 693
Pullulanase/glycogen debranching enzyme [Carbohydrate transport and metabolism].
PRK03705 PRK03705 3.17e-80 1 482 1 558
glycogen debranching protein GlgX.
PRK14510 PRK14510 6.91e-73 6 569 8 654
bifunctional glycogen debranching protein GlgX/4-alpha-glucanotransferase.

CAZyme Hits      help

Hit ID E-Value Query Start Query End Hit Start Hit End
ACR72308.1 1.67e-232 4 611 1 615
SEU00412.1 1.52e-164 14 598 16 606
ADL06627.1 2.91e-159 49 604 52 612
QRV19300.1 2.91e-159 49 604 52 612
BCN30257.1 2.36e-155 8 599 9 629

PDB Hits      download full data without filtering help

Hit ID E-Value Query Start Query End Hit Start Hit End Description
2VNC_A 1.44e-71 9 510 15 616
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]
4J7R_A 9.91e-71 9 576 60 780
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]
2WSK_A 1.86e-49 1 482 1 558
Crystalstructure of Glycogen Debranching Enzyme GlgX from Escherichia coli K-12 [Escherichia coli K-12]
1BF2_A 1.47e-24 37 599 116 730
StructureOf Pseudomonas Isoamylase [Pseudomonas amyloderamosa]
6JHH_A 2.60e-21 85 491 115 567
Crystalstructure of mutant D350A of Pullulanase from Paenibacillus barengoltzii complexed with maltotriose [Paenibacillus barengoltzii]

Swiss-Prot Hits      download full data without filtering help

Hit ID E-Value Query Start Query End Hit Start Hit End Description
O04196 1.32e-77 3 482 66 656
Isoamylase 1, chloroplastic OS=Arabidopsis thaliana OX=3702 GN=ISA1 PE=1 SV=1
Q9M0S5 4.87e-75 6 570 85 725
Isoamylase 3, chloroplastic OS=Arabidopsis thaliana OX=3702 GN=ISA3 PE=1 SV=2
B9G434 9.21e-75 7 601 101 780
Isoamylase 3, chloroplastic OS=Oryza sativa subsp. japonica OX=39947 GN=ISA3 PE=2 SV=1
D0TZF0 6.69e-74 6 577 96 756
Isoamylase 1, chloroplastic OS=Oryza sativa subsp. japonica OX=39947 GN=ISA1 PE=1 SV=1
O22637 1.42e-73 6 579 80 744
Isoamylase SU1, chloroplastic OS=Zea mays OX=4577 GN=SU1 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
1.000066 0.000000 0.000000 0.000000 0.000000 0.000000

TMHMM  Annotations      help

There is no transmembrane helices in MGYG000000638_01050.