dbCAN-seq: a database of CAZyme sequence and annotation

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CAZyme Information: MGYG000003607_01438

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Basic Information help

Species

HGM04593 sp900770655

Lineage

Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Bacteroidaceae; HGM04593; HGM04593 sp900770655

CAZyme ID

MGYG000003607_01438

CAZy Family

GH20

CAZyme Description

Beta-hexosaminidase

CAZyme Property

Protein Length	CGC	Molecular Weight	Isoelectric Point
582	MGYG000003607_50\|CGC1	66484.78	6.0792

Genome Property

Genome Assembly ID	Genome Size	Genome Type	Country	Continent
MGYG000003607	1908641	MAG	Fiji	Oceania

Gene Location

Start: 44762; End: 46510 Strand: +

Full Sequence Download help

Enzyme Prediction help

EC	3.2.1.52	3.2.1.-

CAZyme Signature Domains help

Family	Start	End	Evalue	family coverage
GH20	191	549	5.5e-114	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	0.0	196	562	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	1.16e-152	196	549	1	345	Glycosyl hydrolase family 20, catalytic domain. This domain has a TIM barrel fold.
COG3525	Chb	2.86e-113	47	576	136	642	N-acetyl-beta-hexosaminidase [Carbohydrate transport and metabolism].
cd06568	GH20_SpHex_like	1.24e-85	196	562	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.
cd06570	GH20_chitobiase-like_1	1.87e-77	196	562	1	311	A functionally uncharacterized subgroup of the Glycosyl hydrolase family 20 (GH20) catalytic domain found in proteins similar to the chitobiase of Serratia marcescens, a beta-N-1,4-acetylhexosaminidase 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 subgroup 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.

CAZyme Hits help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End
BCA48934.1	3.42e-260	41	582	3	529
QUT42279.1	1.81e-259	41	582	20	546
QUT70076.1	2.57e-259	41	582	20	546
QMW86727.1	2.98e-258	41	582	20	546
AAO79499.1	2.98e-258	41	582	20	546

PDB Hits download full data without filtering help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
7DUP_A	1.64e-258	43	582	2	526	ChainA, Beta-N-acetylhexosaminidase [Bacteroides thetaiotaomicron],7DVA_A Chain A, Beta-N-acetylhexosaminidase [Bacteroides thetaiotaomicron],7DVA_B Chain B, Beta-N-acetylhexosaminidase [Bacteroides thetaiotaomicron]
7DVB_A	9.43e-258	43	582	2	526	ChainA, Beta-N-acetylhexosaminidase [Bacteroides thetaiotaomicron],7DVB_B Chain B, Beta-N-acetylhexosaminidase [Bacteroides thetaiotaomicron],7DVB_C Chain C, Beta-N-acetylhexosaminidase [Bacteroides thetaiotaomicron],7DVB_D Chain D, Beta-N-acetylhexosaminidase [Bacteroides thetaiotaomicron]
6Q63_A	1.01e-111	47	581	31	541	BT0459[Bacteroides thetaiotaomicron],6Q63_B BT0459 [Bacteroides thetaiotaomicron],6Q63_C BT0459 [Bacteroides thetaiotaomicron]
6EZR_A	1.06e-106	129	578	203	639	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]
6EZT_A	1.50e-105	129	578	200	636	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]

Swiss-Prot Hits download full data without filtering help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
P49008	1.03e-107	26	576	2	532	Beta-hexosaminidase OS=Porphyromonas gingivalis (strain ATCC BAA-308 / W83) OX=242619 GN=nahA PE=3 SV=2
P96155	2.65e-89	83	546	148	604	Beta-hexosaminidase OS=Vibrio furnissii OX=29494 GN=exoI PE=1 SV=1
B2UQG6	6.72e-87	33	576	17	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
B2UP57	4.21e-71	130	576	53	475	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
Q04786	3.52e-53	38	550	191	720	Beta-hexosaminidase OS=Vibrio vulnificus OX=672 GN=hex PE=3 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
0.005975	0.992867	0.000490	0.000245	0.000207	0.000200

TMHMM Annotations download full data without filtering help

start	end
29	48