dbCAN-seq: a database of CAZyme sequence and annotation

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CAZyme Information: MGYG000004596_01037

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Basic Information help

Species

Lineage

Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Bacteroidaceae; CAG-617;

CAZyme ID

MGYG000004596_01037

CAZy Family

GH20

CAZyme Description

Beta-hexosaminidase

CAZyme Property

Protein Length	CGC	Molecular Weight	Isoelectric Point
546	MGYG000004596_37\|CGC1	61843.3	7.4233

Genome Property

Genome Assembly ID	Genome Size	Genome Type	Country	Continent
MGYG000004596	2214446	MAG	France	Europe

Gene Location

Start: 16179; End: 17819 Strand: +

Full Sequence Download help

Enzyme Prediction help

No EC number prediction in MGYG000004596_01037.

CAZyme Signature Domains help

Family	Start	End	Evalue	family coverage
GH20	150	491	4e-105	0.973293768545994

CDD Domains download full data without filtering help

Cdd ID	Domain	E-Value	qStart	qEnd	sStart	sEnd	Domain Description
cd06563	GH20_chitobiase-like	1.96e-161	155	504	1	357	The chitobiase of Serratia marcescens is a beta-N-1,4-acetylhexosaminidase with a glycosyl hydrolase family 20 (GH20) domain that hydrolyzes the beta-1,4-glycosidic linkages in oligomers derived from chitin. Chitin is degraded by a two step process: i) a chitinase hydrolyzes the chitin to oligosaccharides and disaccharides such as di-N-acetyl-D-glucosamine and chitobiose, ii) chitobiase then further degrades these oligomers into monomers. This GH20 domain family includes an N-acetylglucosamidase (GlcNAcase A) from Pseudoalteromonas piscicida and an N-acetylhexosaminidase (SpHex) from Streptomyces plicatus. SpHex lacks the C-terminal PKD (polycystic kidney disease I)-like domain found in the chitobiases. The GH20 hexosaminidases are thought to act via a catalytic mechanism in which the catalytic nucleophile is not provided by solvent or the enzyme, but by the substrate itself.
pfam00728	Glyco_hydro_20	8.51e-144	155	491	1	345	Glycosyl hydrolase family 20, catalytic domain. This domain has a TIM barrel fold.
cd06568	GH20_SpHex_like	7.69e-95	155	504	1	329	A subgroup of the Glycosyl hydrolase family 20 (GH20) catalytic domain found in proteins similar to the N-acetylhexosaminidase from Streptomyces plicatus (SpHex). SpHex catalyzes the hydrolysis of N-acetyl-beta-hexosaminides. An Asp residue within the active site plays a critical role in substrate-assisted catalysis by orienting the 2-acetamido group and stabilizing the transition state. The GH20 hexosaminidases are thought to act via a catalytic mechanism in which the catalytic nucleophile is not provided by solvent or the enzyme, but by the substrate itself. Proteins belonging to this subgroup lack the C-terminal PKD (polycystic kidney disease I)-like domain found in the chitobiases.
COG3525	Chb	4.16e-91	102	520	206	644	N-acetyl-beta-hexosaminidase [Carbohydrate transport and metabolism].
cd02742	GH20_hexosaminidase	8.05e-82	157	489	1	302	Beta-N-acetylhexosaminidases of glycosyl hydrolase family 20 (GH20) catalyze the removal of beta-1,4-linked N-acetyl-D-hexosamine residues from the non-reducing ends of N-acetyl-beta-D-hexosaminides including N-acetylglucosides and N-acetylgalactosides. These enzymes are broadly distributed in microorganisms, plants and animals, and play roles in various key physiological and pathological processes. These processes include cell structural integrity, energy storage, cellular signaling, fertilization, pathogen defense, viral penetration, the development of carcinomas, inflammatory events and lysosomal storage disorders. The GH20 enzymes include the eukaryotic beta-N-acetylhexosaminidases A and B, the bacterial chitobiases, dispersin B, and lacto-N-biosidase. The GH20 hexosaminidases are thought to act via a catalytic mechanism in which the catalytic nucleophile is not provided by the solvent or the enzyme, but by the substrate itself.

CAZyme Hits help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End
QUT41481.1	2.17e-227	27	546	24	537
ALJ44203.1	2.17e-227	27	546	24	537
QQA08279.1	3.07e-227	27	546	24	537
AAO78703.1	6.18e-227	27	546	24	537
QMW85972.1	6.18e-227	27	546	24	537

PDB Hits download full data without filtering help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
6EZR_A	4.35e-86	103	518	210	637	Crystalstructure of GH20 Exo beta-N-Acetylglucosaminidase from Vibrio harveyi [Vibrio harveyi],6EZR_B Crystal structure of GH20 Exo beta-N-Acetylglucosaminidase from Vibrio harveyi [Vibrio harveyi],6EZS_A Crystal structure of GH20 Exo beta-N-Acetylglucosaminidase from Vibrio harveyi in complex with N-acetylglucosamine [Vibrio harveyi],6EZS_B Crystal structure of GH20 Exo beta-N-Acetylglucosaminidase from Vibrio harveyi in complex with N-acetylglucosamine [Vibrio harveyi],6K35_A Crystal structure of GH20 exo beta-N-acetylglucosaminidase from Vibrio harveyi in complex with NAG-thiazoline [Vibrio harveyi],6K35_B Crystal structure of GH20 exo beta-N-acetylglucosaminidase from Vibrio harveyi in complex with NAG-thiazoline [Vibrio harveyi]
1HP4_A	1.10e-85	29	525	26	508	ChainA, Beta-n-acetylhexosaminidase [Streptomyces plicatus],1HP5_A Chain A, Beta-n-acetylhexosaminidase [Streptomyces plicatus],1JAK_A Chain A, Beta-N-acetylhexosaminidase [Streptomyces plicatus],1M01_A Chain A, Beta-N-acetylhexosaminidase [Streptomyces plicatus],5FCZ_A Chain A, B-N-acetylhexosaminidase [Streptomyces plicatus],5FD0_A Chain A, B-N-acetylhexosaminidase [Streptomyces plicatus]
6EZT_A	6.01e-85	103	518	207	634	Crystalstructure of GH20 Exo beta-N-Acetylglucosaminidase D437A inactive mutant from Vibrio harveyi [Vibrio harveyi],6EZT_B Crystal structure of GH20 Exo beta-N-Acetylglucosaminidase D437A inactive mutant from Vibrio harveyi [Vibrio harveyi]
1M04_A	6.03e-85	29	525	26	508	ChainA, Beta-N-acetylhexosaminidase [Streptomyces plicatus]
7CBN_A	1.67e-84	96	518	72	510	Crystalstructure of beta-N-acetylhexosaminidase Am0868 from Akkermansia muciniphila [Akkermansia muciniphila ATCC BAA-835],7CBO_A Crystal structure of beta-N-acetylhexosaminidase Am0868 from Akkermansia muciniphila in complex with GlcNAc [Akkermansia muciniphila ATCC BAA-835]

Swiss-Prot Hits download full data without filtering help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
P49008	3.20e-85	28	518	35	532	Beta-hexosaminidase OS=Porphyromonas gingivalis (strain ATCC BAA-308 / W83) OX=242619 GN=nahA PE=3 SV=2
B2UQG6	1.22e-83	96	518	91	529	Beta-hexosaminidase Amuc_0868 OS=Akkermansia muciniphila (strain ATCC BAA-835 / DSM 22959 / JCM 33894 / BCRC 81048 / CCUG 64013 / CIP 107961 / Muc) OX=349741 GN=Amuc_0868 PE=1 SV=1
P96155	6.72e-72	103	485	209	601	Beta-hexosaminidase OS=Vibrio furnissii OX=29494 GN=exoI PE=1 SV=1
B2UP57	6.16e-66	102	506	58	464	Beta-hexosaminidase Amuc_2018 OS=Akkermansia muciniphila (strain ATCC BAA-835 / DSM 22959 / JCM 33894 / BCRC 81048 / CCUG 64013 / CIP 107961 / Muc) OX=349741 GN=Amuc_2018 PE=1 SV=1
Q7WUL4	2.72e-63	27	515	3	474	Beta-N-acetylhexosaminidase OS=Cellulomonas fimi OX=1708 GN=hex20 PE=1 SV=1

SignalP and Lipop Annotations help

This protein is predicted as SP

Other	SP_Sec_SPI	LIPO_Sec_SPII	TAT_Tat_SPI	TATLIP_Sec_SPII	PILIN_Sec_SPIII
0.000755	0.591299	0.407260	0.000269	0.000216	0.000189

TMHMM Annotations download full data without filtering help

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