dbCAN-seq: a database of CAZyme sequence and annotation

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CAZyme Information: MGYG000004793_00682

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Basic Information help

Species

Lineage

Bacteria; Bacteroidota; Bacteroidia; Flavobacteriales; UBA1820; UBA1820;

CAZyme ID

MGYG000004793_00682

CAZy Family

GH20

CAZyme Description

N,N'-diacetylchitobiase

CAZyme Property

Protein Length	CGC	Molecular Weight	Isoelectric Point
815		91265.04	5.4887

Genome Property

Genome Assembly ID	Genome Size	Genome Type	Country	Continent
MGYG000004793	1486801	MAG	China	Asia

Gene Location

Start: 21; End: 2468 Strand: -

Full Sequence Download help

Enzyme Prediction help

EC	3.2.1.52	2.4.1.-

CAZyme Signature Domains help

Family	Start	End	Evalue	family coverage
GH20	285	701	1.7e-90	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	280	721	1	437	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	3.03e-102	285	705	2	350	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	4.28e-94	285	701	2	345	Glycosyl hydrolase family 20, catalytic domain. This domain has a TIM barrel fold.
COG3525	Chb	1.95e-89	222	789	196	721	N-acetyl-beta-hexosaminidase [Carbohydrate transport and metabolism].
cd06568	GH20_SpHex_like	5.97e-56	285	706	2	323	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
QIU93708.1	4.61e-228	9	812	44	832
QNL38883.1	1.29e-222	11	815	45	836
QUU00208.1	9.70e-222	9	808	44	827
QBJ17558.1	1.37e-221	9	808	44	827
QRQ49907.1	1.88e-221	9	815	44	833

PDB Hits download full data without filtering help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
1QBA_A	4.46e-105	7	800	33	846	BACTERIALCHITOBIASE, GLYCOSYL HYDROLASE FAMILY 20 [Serratia marcescens],1QBB_A BACTERIAL CHITOBIASE COMPLEXED WITH CHITOBIOSE (DINAG) [Serratia marcescens]
1C7T_A	4.66e-103	7	800	33	846	ChainA, BETA-N-ACETYLHEXOSAMINIDASE [Serratia marcescens]
1C7S_A	2.45e-102	7	800	33	846	ChainA, BETA-N-ACETYLHEXOSAMINIDASE [Serratia marcescens]
6Q63_A	8.29e-65	179	801	51	601	BT0459[Bacteroides thetaiotaomicron],6Q63_B BT0459 [Bacteroides thetaiotaomicron],6Q63_C BT0459 [Bacteroides thetaiotaomicron]
6EZR_A	2.44e-63	154	745	131	638	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]

Swiss-Prot Hits download full data without filtering help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
Q04786	8.73e-109	6	775	34	809	Beta-hexosaminidase OS=Vibrio vulnificus OX=672 GN=hex PE=3 SV=1
P13670	2.92e-105	14	800	66	880	N,N'-diacetylchitobiase OS=Vibrio harveyi OX=669 GN=chb PE=1 SV=1
Q54468	1.63e-103	7	800	60	873	Chitobiase OS=Serratia marcescens OX=615 GN=chb PE=1 SV=1
P49007	9.58e-87	11	739	53	762	Beta-hexosaminidase B OS=Pseudoalteromonas piscicida OX=43662 GN=nag096 PE=3 SV=1
P96155	4.95e-60	176	700	163	606	Beta-hexosaminidase OS=Vibrio furnissii OX=29494 GN=exoI PE=1 SV=1

SignalP and Lipop Annotations help

This protein is predicted as OTHER

Other	SP_Sec_SPI	LIPO_Sec_SPII	TAT_Tat_SPI	TATLIP_Sec_SPII	PILIN_Sec_SPIII
1.000055	0.000000	0.000000	0.000000	0.000000	0.000000

TMHMM Annotations help

There is no transmembrane helices in MGYG000004793_00682.