CAZyme Information: MGYG000003335_02206

Basic Information

• Species: GCA-900066135 sp900543575
• Lineage: Bacteria; Firmicutes_A; Clostridia; Lachnospirales; Lachnospiraceae; GCA-900066135; GCA-900066135 sp900543575
• CAZyme ID: MGYG000003335_02206
• CAZy Family: GH13
• CAZyme Description: Glycogen operon protein GlgX

CAZyme Property

Protein Length	CGC	Molecular Weight	Isoelectric Point
608	MGYG000003335_241|CGC1	70370.66	5.5687

Genome Property

Genome Assembly ID	Genome Size	Genome Type	Country	Continent
MGYG000003335	3295822	MAG	China	Asia

• Gene Location: Start: 231; End: 2057 Strand: -

Full Sequence      

MTMEKQWIPETGDWTRAGVTKTGQGVNFTLELPEAETAELLLFQKGEEEPEAVIPMGEKV
MGDLCSIFLKGFRPERYEYAYRIGEEVFVDPRAERILGRKDFGEWDPETGVPALRGGFAF
EAYNWENDRHPKIPYEEGILYHLHVRGFTKNQNSRVRHKGTFVGLAEKIPYLKELGVNQL
LLMPVYDFDERILPEKEKNIPYQKEGQEPKLNYWGYGKARYFAPKSTYSVKDPVKEFKDL
VKKFHAEGIEVLMEIFFPEGTEERLIFDCLEHWVRDYHVDGFYLMGDDSMNRFLARDPMF
VGTKLLSTWFDTDNIYERKKTPAFRNLAEHNDGFLVDARRFLKGDEDQLPAFTWRVRKNP
AKCAVINYITHHDGFTLMDLVSYEERHNEANGEGGQDGPAYNFSWNCGVEGPSRKKKIQE
LRLQQMKNAFLLLLFSQGTPMILAGDEFGNSQRGNNNPYCQDNETSWLEWNGLKKQAELF
EFVKAAIAFRKTHPLLHQAKELQGTSGSVLGYPDVSCHGQQAWYGNFETTSRHFGMMYCG
EEGEYLYVAYNLHWKEQSFALPKLPEGLSWQLVFDTEDGASPEKKIKWIDQKSFEAPPRS
ILVLEGRK

Enzyme Prediction     

No EC number prediction in MGYG000003335_02206.

CAZyme Signature Domains

Family	Start	End	Evalue	family coverage
GH13	263	451	2.6e-53	0.5925925925925926

CDD Domains     

Cdd ID	Domain	E-Value	qStart	qEnd	sStart	sEnd	Domain Description
cd11326	AmyAc_Glg_debranch	4.42e-147	123	493	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	5.49e-141	18	604	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	5.24e-126	12	604	15	689	Pullulanase/glycogen debranching enzyme [Carbohydrate transport and metabolism].
PRK03705	PRK03705	5.98e-91	11	509	6	577	glycogen debranching protein GlgX.
PRK14510	PRK14510	4.59e-72	18	562	17	647	bifunctional glycogen debranching protein GlgX/4-alpha-glucanotransferase.

CAZyme Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End
QMW79391.1	6.30e-190	16	608	21	645
QIB54880.1	6.30e-190	16	608	21	645
QBE97456.1	1.59e-189	16	608	7	631
QUO22145.1	3.03e-187	12	608	9	610
SEU00412.1	7.16e-185	18	608	17	611

PDB Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
4J7R_A	1.01e-81	26	606	76	828	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	2.89e-81	25	516	30	614	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	9.63e-63	18	509	13	577	Crystalstructure of Glycogen Debranching Enzyme GlgX from Escherichia coli K-12 [Escherichia coli K-12]
6JHH_A	1.23e-36	18	577	42	630	Crystalstructure of mutant D350A of Pullulanase from Paenibacillus barengoltzii complexed with maltotriose [Paenibacillus barengoltzii]
6JEQ_A	1.23e-36	18	577	42	630	Crystalstructure of Pullulanase from Paenibacillus barengoltzii complex with beta-cyclodextrin [Paenibacillus barengoltzii],6JFJ_A Crystal structure of Pullulanase from Paenibacillus barengoltzii complex with maltohexaose and alpha-cyclodextrin [Paenibacillus barengoltzii],6JFX_A Crystal structure of Pullulanase from Paenibacillus barengoltzii complex with maltopentaose [Paenibacillus barengoltzii],6JHF_A Crystal structure of apo Pullulanase from Paenibacillus barengoltzii [Paenibacillus barengoltzii],6JHG_A Crystal structure of apo Pullulanase from Paenibacillus barengoltzii in space group P212121 [Paenibacillus barengoltzii]

Swiss-Prot Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
Q9M0S5	2.28e-88	1	576	77	731	Isoamylase 3, chloroplastic OS=Arabidopsis thaliana OX=3702 GN=ISA3 PE=1 SV=2
B9G434	4.98e-85	18	576	109	748	Isoamylase 3, chloroplastic OS=Oryza sativa subsp. japonica OX=39947 GN=ISA3 PE=2 SV=1
O04196	1.47e-80	18	576	78	733	Isoamylase 1, chloroplastic OS=Arabidopsis thaliana OX=3702 GN=ISA1 PE=1 SV=1
D0TZF0	2.12e-79	18	576	105	755	Isoamylase 1, chloroplastic OS=Oryza sativa subsp. japonica OX=39947 GN=ISA1 PE=1 SV=1
O22637	2.32e-77	18	576	89	741	Isoamylase SU1, chloroplastic OS=Zea mays OX=4577 GN=SU1 PE=1 SV=1

SignalP and Lipop Annotations

This protein is predicted as OTHER

Other	SP_Sec_SPI	LIPO_Sec_SPII	TAT_Tat_SPI	TATLIP_Sec_SPII	PILIN_Sec_SPIII
1.000052	0.000000	0.000000	0.000000	0.000000	0.000000

TMHMM  Annotations     

There is no transmembrane helices in MGYG000003335_02206.