dbCAN-seq: a database of CAZyme sequence and annotation

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CAZyme Information: MGYG000003881_01606

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Basic Information help

Species

Lineage

Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Muribaculaceae; CAG-279;

CAZyme ID

MGYG000003881_01606

CAZy Family

GH20

CAZyme Description

N,N'-diacetylchitobiase

CAZyme Property

Protein Length	CGC	Molecular Weight	Isoelectric Point
825		92734.1	5.0262

Genome Property

Genome Assembly ID	Genome Size	Genome Type	Country	Continent
MGYG000003881	1968494	MAG	United States	North America

Gene Location

Start: 9722; End: 12199 Strand: -

Full Sequence Download help

Enzyme Prediction help

EC	3.2.1.52

CAZyme Signature Domains help

Family	Start	End	Evalue	family coverage
GH20	309	725	8.9e-95	0.9703264094955489

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	309	725	1	417	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.
pfam00728	Glyco_hydro_20	8.81e-100	313	725	1	345	Glycosyl hydrolase family 20, catalytic domain. This domain has a TIM barrel fold.
cd06563	GH20_chitobiase-like	4.28e-98	313	723	1	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.
COG3525	Chb	1.84e-90	50	813	21	702	N-acetyl-beta-hexosaminidase [Carbohydrate transport and metabolism].
cd06568	GH20_SpHex_like	2.75e-61	313	726	1	317	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	E-Value	Query Start	Query End	Hit Start	Hit End
CDL66413.1	9.18e-251	265	824	1	558
QUT26545.1	4.17e-229	13	821	14	830
QUR45222.1	3.34e-228	13	821	14	830
SCV07433.1	3.78e-227	13	821	15	830
ALJ48025.1	3.78e-227	13	821	15	830

PDB Hits download full data without filtering help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
1QBA_A	5.43e-85	33	787	27	821	BACTERIALCHITOBIASE, GLYCOSYL HYDROLASE FAMILY 20 [Serratia marcescens],1QBB_A BACTERIAL CHITOBIASE COMPLEXED WITH CHITOBIOSE (DINAG) [Serratia marcescens]
1C7T_A	7.52e-85	33	787	27	821	ChainA, BETA-N-ACETYLHEXOSAMINIDASE [Serratia marcescens]
1C7S_A	3.80e-84	33	787	27	821	ChainA, BETA-N-ACETYLHEXOSAMINIDASE [Serratia marcescens]
6EZR_A	1.94e-67	54	756	28	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]
6EZT_A	2.37e-66	54	756	25	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]

Swiss-Prot Hits download full data without filtering help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
P13670	5.39e-90	52	788	71	847	N,N'-diacetylchitobiase OS=Vibrio harveyi OX=669 GN=chb PE=1 SV=1
Q04786	6.84e-86	39	788	34	810	Beta-hexosaminidase OS=Vibrio vulnificus OX=672 GN=hex PE=3 SV=1
Q54468	6.55e-84	33	787	54	848	Chitobiase OS=Serratia marcescens OX=615 GN=chb PE=1 SV=1
P49007	4.02e-73	226	724	234	727	Beta-hexosaminidase B OS=Pseudoalteromonas piscicida OX=43662 GN=nag096 PE=3 SV=1
P96155	2.87e-64	52	715	23	597	Beta-hexosaminidase OS=Vibrio furnissii OX=29494 GN=exoI 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
0.000319	0.998922	0.000188	0.000202	0.000186	0.000171

TMHMM Annotations download full data without filtering help

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