CAZyme Information: MGYG000002621_01738

Basic Information

• Species: Bacteroides ndongoniae
• Lineage: Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Bacteroidaceae; Bacteroides; Bacteroides ndongoniae
• CAZyme ID: MGYG000002621_01738
• CAZy Family: GH20
• CAZyme Description: Beta-hexosaminidase

CAZyme Property

Protein Length	CGC	Molecular Weight	Isoelectric Point
528	MGYG000002621_17|CGC1	60273.14	6.015

Genome Property

Genome Assembly ID	Genome Size	Genome Type	Country	Continent
MGYG000002621	3633256	MAG	China	Asia

• Gene Location: Start: 53744; End: 55330 Strand: +

Full Sequence      

MKIRNLERRIVIVAMACLFSLPMVSQVSLFPTPVEVRKAEGYFMVGRNLQIGSNGGYAAL
LAGKLGEELKEVSADTRASGEVFLELNELAGLPDEGYMMEVTPAKVVLKASSAAGLFYAK
ETFLQLAETAGGKIRCCRIEDAPRYSWRGFMLDESRHFFGKEKVKQYLDMMASLKLNVFH
WHLTDEPGWRIEIKKYPKLTSEGAVGNWHDPKAPAQFYTQDDIREIVSYAAERHIMVLPE
FDMPGHATAVCRSYPEVSGGGEGKWEGFTFHPCKEETFEFISHIFDEIISLFPSPYIHVG
GDEVHFGNQSWYTDPEIQQFIKDKNLGNEVGLEHYFIRRIADMLASKGKTMIGWDEIVDA
GVSPEKAVVMWWRHDRKHQLVKALENGYKVIMTPRRPLYGDFVQYGQHTVGRFWDGYNPI
EDICRFPEPIIHLAQGYEDQLMGLQFSMWTERVADEKRLDFMTFPRLAAVAESAWTPAKK
KDCSLFMQKLPKFLKLLDRLGIYYFNPFQPDATPEPDAPDKDDVLKNG

Enzyme Prediction     

No EC number prediction in MGYG000002621_01738.

CAZyme Signature Domains

Family	Start	End	Evalue	family coverage
GH20	140	477	4.2e-110	0.973293768545994

CDD Domains     

Cdd ID	Domain	E-Value	qStart	qEnd	sStart	sEnd	Domain Description
cd06563	GH20_chitobiase-like	2.83e-166	145	490	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	4.12e-144	145	477	1	345	Glycosyl hydrolase family 20, catalytic domain. This domain has a TIM barrel fold.
COG3525	Chb	5.32e-98	90	515	201	654	N-acetyl-beta-hexosaminidase [Carbohydrate transport and metabolism].
cd06568	GH20_SpHex_like	2.87e-96	145	482	1	321	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.
cd06562	GH20_HexA_HexB-like	7.39e-92	145	501	1	348	Beta-N-acetylhexosaminidases catalyze the removal of beta-1,4-linked N-acetyl-D-hexosamine residues from the non-reducing ends of N-acetyl-beta-D-hexosaminides including N-acetylglucosides and N-acetylgalactosides. The hexA and hexB genes encode the alpha- and beta-subunits of the two major beta-N-acetylhexosaminidase isoenzymes, N-acetyl-beta-D-hexosaminidase A (HexA) and beta-N-acetylhexosaminidase B (HexB). Both the alpha and the beta catalytic subunits have a TIM-barrel fold and belong to the glycosyl hydrolase family 20 (GH20). The HexA enzyme is a heterodimer containing one alpha and one beta subunit while the HexB enzyme is a homodimer containing two beta-subunits. Hexosaminidase mutations cause an inability to properly hydrolyze certain sphingolipids which accumulate in lysosomes within the brain, resulting in the lipid storage disorders Tay-Sachs and Sandhoff. Mutations in the alpha subunit cause in a deficiency in the HexA enzyme and result in Tay-Sachs, mutations in the beta-subunit cause in a deficiency in both HexA and HexB enzymes and result in Sandhoff disease. In both disorders GM(2) gangliosides accumulate in lysosomes. 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     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End
QUT50216.1	3.19e-304	18	528	13	524
CBW20983.1	2.12e-252	94	528	77	511
QCQ40074.1	2.12e-252	94	528	77	511
ANQ62643.1	4.26e-252	94	528	77	511
AKA50463.1	4.26e-252	94	528	77	511

PDB Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
7CBN_A	1.60e-91	88	507	71	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]
7DUP_A	4.14e-82	26	504	3	520	ChainA, Beta-N-acetylhexosaminidase [Bacteroides thetaiotaomicron],7DVA_A Chain A, Beta-N-acetylhexosaminidase [Bacteroides thetaiotaomicron],7DVA_B Chain B, Beta-N-acetylhexosaminidase [Bacteroides thetaiotaomicron]
6Q63_A	5.25e-82	72	504	84	536	BT0459[Bacteroides thetaiotaomicron],6Q63_B BT0459 [Bacteroides thetaiotaomicron],6Q63_C BT0459 [Bacteroides thetaiotaomicron]
7DVB_A	2.25e-81	26	504	3	520	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]
6EZR_A	2.71e-79	67	509	180	642	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     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
B2UQG6	1.18e-90	88	507	90	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	5.41e-84	27	507	35	535	Beta-hexosaminidase OS=Porphyromonas gingivalis (strain ATCC BAA-308 / W83) OX=242619 GN=nahA PE=3 SV=2
P96155	7.63e-74	28	473	140	603	Beta-hexosaminidase OS=Vibrio furnissii OX=29494 GN=exoI PE=1 SV=1
Q7WUL4	3.84e-60	27	501	4	474	Beta-N-acetylhexosaminidase OS=Cellulomonas fimi OX=1708 GN=hex20 PE=1 SV=1
B2UP57	5.53e-55	68	490	35	462	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

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
0.225094	0.692864	0.075849	0.004429	0.000999	0.000727

TMHMM  Annotations     

start	end
12	34