CAZyme Information: MGYG000001591_00820

Basic Information

• Species: Parabacteroides timonensis
• Lineage: Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Tannerellaceae; Parabacteroides; Parabacteroides timonensis
• CAZyme ID: MGYG000001591_00820
• CAZy Family: GH20
• CAZyme Description: Beta-hexosaminidase

CAZyme Property

Protein Length	CGC	Molecular Weight	Isoelectric Point
524	MGYG000001591_9|CGC1	59547.05	6.2841

Genome Property

Genome Assembly ID	Genome Size	Genome Type	Country	Continent
MGYG000001591	5999279	MAG	China	Asia

• Gene Location: Start: 15948; End: 17522 Strand: +

Full Sequence      

MRKLFSVALLLIFLGLPALAQLTMFPTPARVVGQKGSFTIGATPKISGNGGYADVLAKKL
QSELKATGKQSSAGGGEIRLVLDEKLKMVDEGYSLNISPETVLLEASSESGLFYAKEALL
QLVRFGNGTLGACKIEDYPRYDWRGFMLDESRHFFGKEKVKQYLDIMASLRMNVFHWHLT
DEPGWRIEIKKYPKLTSVGAIGNWHEPEAPAQFYTQDDIREIVAYAADRHIMVVPEFDMP
GHATAVSRAYPELSGGGEGKWNGFTFHPCKETTYRFISDVLDEIVALFPSPYIHIGGDEV
HYGNQSWFTDPEIQQFIKDKKLQNETGLEHYFVKRAADIVASKGKTMIGWDEIIDAGVSP
DKAVIMWWRHDRKHQLVKALENGFRVIMTPRRPLYADFVQYGAHKVGRLWNGYNPVEDIY
RFPDPIIHLTKDYEDQVMGMQFSLWTERVADTKRLDYMTFPRLAAVAESAWTPAKAKESS
LFMKKLPYFLQYLDTFGIYYFNPFDPDSTPEPDAPEKEDVLQNG

Enzyme Prediction     

No EC number prediction in MGYG000001591_00820.

CAZyme Signature Domains

Family	Start	End	Evalue	family coverage
GH20	137	473	1.1e-114	0.9703264094955489

CDD Domains     

Cdd ID	Domain	E-Value	qStart	qEnd	sStart	sEnd	Domain Description
cd06563	GH20_chitobiase-like	1.27e-173	141	486	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	2.93e-153	141	473	1	345	Glycosyl hydrolase family 20, catalytic domain. This domain has a TIM barrel fold.
cd06568	GH20_SpHex_like	1.72e-105	141	486	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	2.10e-97	141	474	1	299	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.
COG3525	Chb	4.58e-97	91	511	206	654	N-acetyl-beta-hexosaminidase [Carbohydrate transport and metabolism].

CAZyme Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End
QUT50216.1	0.0	1	524	1	524
ALJ59064.1	1.28e-255	90	524	70	504
QUT89819.1	1.48e-254	90	524	70	504
CBW20983.1	2.72e-254	9	524	21	511
QCQ40074.1	2.72e-254	9	524	21	511

PDB Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
7CBN_A	1.50e-98	56	503	43	513	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]
6EZR_A	2.63e-84	24	504	142	641	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]
7DUP_A	3.44e-83	21	486	3	506	ChainA, Beta-N-acetylhexosaminidase [Bacteroides thetaiotaomicron],7DVA_A Chain A, Beta-N-acetylhexosaminidase [Bacteroides thetaiotaomicron],7DVA_B Chain B, Beta-N-acetylhexosaminidase [Bacteroides thetaiotaomicron]
6EZT_A	3.64e-83	24	504	139	638	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]
7DVB_A	1.88e-82	21	486	3	506	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]

Swiss-Prot Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
B2UQG6	1.11e-97	56	503	62	532	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
P49008	2.46e-92	22	503	35	535	Beta-hexosaminidase OS=Porphyromonas gingivalis (strain ATCC BAA-308 / W83) OX=242619 GN=nahA PE=3 SV=2
P96155	2.29e-82	20	469	137	603	Beta-hexosaminidase OS=Vibrio furnissii OX=29494 GN=exoI PE=1 SV=1
Q7WUL4	4.07e-65	78	497	69	474	Beta-N-acetylhexosaminidase OS=Cellulomonas fimi OX=1708 GN=hex20 PE=1 SV=1
P06865	1.05e-54	91	489	114	503	Beta-hexosaminidase subunit alpha OS=Homo sapiens OX=9606 GN=HEXA PE=1 SV=2

SignalP and Lipop Annotations

This protein is predicted as SP

Other	SP_Sec_SPI	LIPO_Sec_SPII	TAT_Tat_SPI	TATLIP_Sec_SPII	PILIN_Sec_SPIII
0.000254	0.999136	0.000159	0.000153	0.000149	0.000140

TMHMM  Annotations     

start	end
7	29