dbCAN-seq: a database of CAZyme sequence and annotation

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CAZyme Information: MGYG000002585_00161

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Basic Information help

Species

Lineage

Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Bacteroidaceae; Bacteroides;

CAZyme ID

MGYG000002585_00161

CAZy Family

GH20

CAZyme Description

N,N'-diacetylchitobiase

CAZyme Property

Protein Length	CGC	Molecular Weight	Isoelectric Point
831	MGYG000002585_2\|CGC1	92272.01	5.3228

Genome Property

Genome Assembly ID	Genome Size	Genome Type	Country	Continent
MGYG000002585	2701793	MAG	China	Asia

Gene Location

Start: 16460; End: 18955 Strand: -

Full Sequence Download help

Enzyme Prediction help

No EC number prediction in MGYG000002585_00161.

CAZyme Signature Domains help

Family	Start	End	Evalue	family coverage
GH20	309	718	3.4e-95	0.9554896142433235

CDD Domains download full data without filtering help

Cdd ID	Domain	E-Value	qStart	qEnd	sStart	sEnd	Domain Description
cd06569	GH20_Sm-chitobiase-like	0.0	304	733	1	432	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. 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.
cd06563	GH20_chitobiase-like	2.93e-106	309	716	2	342	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	1.30e-103	309	718	2	345	Glycosyl hydrolase family 20, catalytic domain. This domain has a TIM barrel fold.
COG3525	Chb	1.27e-98	53	824	21	709	N-acetyl-beta-hexosaminidase [Carbohydrate transport and metabolism].
cd06568	GH20_SpHex_like	1.74e-66	309	716	2	314	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.

CAZyme Hits help

Hit ID	Query Start	Query End	Hit Start	Hit End
QUT62496.1	1	831	1	834
QQA31047.1	1	831	1	834
QUU00208.1	1	831	1	834
QBJ17558.1	1	831	1	834
QMI79073.1	1	831	1	834

PDB Hits download full data without filtering help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
1QBA_A	1.26e-104	53	791	44	821	BACTERIALCHITOBIASE, GLYCOSYL HYDROLASE FAMILY 20 [Serratia marcescens],1QBB_A BACTERIAL CHITOBIASE COMPLEXED WITH CHITOBIOSE (DINAG) [Serratia marcescens]
1C7T_A	4.86e-103	53	791	44	821	ChainA, BETA-N-ACETYLHEXOSAMINIDASE [Serratia marcescens]
1C7S_A	2.55e-102	53	791	44	821	ChainA, BETA-N-ACETYLHEXOSAMINIDASE [Serratia marcescens]
6EZR_A	2.26e-77	161	763	108	640	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	2.87e-76	161	763	105	637	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
P13670	4.36e-104	14	791	10	846	N,N'-diacetylchitobiase OS=Vibrio harveyi OX=669 GN=chb PE=1 SV=1
Q54468	8.82e-104	53	791	71	848	Chitobiase OS=Serratia marcescens OX=615 GN=chb PE=1 SV=1
Q04786	4.08e-102	49	791	41	809	Beta-hexosaminidase OS=Vibrio vulnificus OX=672 GN=hex PE=3 SV=1
P49007	9.19e-84	235	723	261	732	Beta-hexosaminidase B OS=Pseudoalteromonas piscicida OX=43662 GN=nag096 PE=3 SV=1
P96155	2.92e-69	218	715	174	604	Beta-hexosaminidase OS=Vibrio furnissii OX=29494 GN=exoI PE=1 SV=1

SignalP and Lipop Annotations help

This protein is predicted as LIPO

Other	SP_Sec_SPI	LIPO_Sec_SPII	TAT_Tat_SPI	TATLIP_Sec_SPII	PILIN_Sec_SPIII
0.000000	0.000000	1.000079	0.000000	0.000000	0.000000

TMHMM Annotations help

There is no transmembrane helices in MGYG000002585_00161.