dbCAN-seq: a database of CAZyme sequence and annotation

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CAZyme Information: MGYG000003854_00343

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Basic Information help

Species

Lineage

Bacteria; Firmicutes_A; Clostridia; Oscillospirales; Ruminococcaceae; Negativibacillus;

CAZyme ID

MGYG000003854_00343

CAZy Family

GH20

CAZyme Description

hypothetical protein

CAZyme Property

Protein Length	CGC	Molecular Weight	Isoelectric Point
620	MGYG000003854_2\|CGC1	71554.96	5.9589

Genome Property

Genome Assembly ID	Genome Size	Genome Type	Country	Continent
MGYG000003854	2287573	MAG	United States	North America

Gene Location

Start: 71238; End: 73100 Strand: +

Full Sequence Download help

Enzyme Prediction help

No EC number prediction in MGYG000003854_00343.

CAZyme Signature Domains help

Family	Start	End	Evalue	family coverage
GH20	125	436	3.5e-42	0.9614243323442137

CDD Domains download full data without filtering help

Cdd ID	Domain	E-Value	qStart	qEnd	sStart	sEnd	Domain Description
cd06565	GH20_GcnA-like	3.19e-85	128	435	1	301	Glycosyl hydrolase family 20 (GH20) catalytic domain of N-acetyl-beta-D-glucosaminidase (GcnA, also known as BhsA) and related proteins. GcnA is an exoglucosidase which cleaves N-acetyl-beta-D-galactosamine (NAG) and N-acetyl-beta-D-galactosamine residues from 4-methylumbelliferylated (4MU) substrates, as well as cleaving NAG from chito-oligosaccharides (i.e. NAG polymers). In contrast, sulfated forms of the substrate are unable to be cleaved and act instead as mild competitive inhibitors. Additionally, the enzyme is known to be poisoned by several first-row transition metals as well as by mercury. GcnA forms a homodimer with subunits comprised of three domains, an N-terminal zincin-like domain, this central catalytic GH20 domain, and a C-terminal alpha helical domain. 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.
cd06564	GH20_DspB_LnbB-like	2.89e-23	127	349	1	224	Glycosyl hydrolase family 20 (GH20) catalytic domain of dispersin B (DspB), lacto-N-biosidase (LnbB) and related proteins. Dispersin B is a soluble beta-N-acetylglucosamidase found in bacteria that hydrolyzes the beta-1,6-linkages of PGA (poly-beta-(1,6)-N-acetylglucosamine), a major component of the extracellular polysaccharide matrix. Lacto-N-biosidase hydrolyzes lacto-N-biose (LNB) type I oligosaccharides at the nonreducing terminus to produce lacto-N-biose as part of the GNB/LNB (galacto-N-biose/lacto-N-biose I) degradation pathway. The lacto-N-biosidase from Bifidobacterium bifidum has this GH20 domain, a carbohydrate binding module 32, and a bacterial immunoglobulin-like domain 2, as well as a YSIRK signal peptide and a G5 membrane anchor at the N and C termini, respectively. 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.
cd02742	GH20_hexosaminidase	1.16e-15	128	351	1	214	Beta-N-acetylhexosaminidases of glycosyl hydrolase family 20 (GH20) 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. These enzymes are broadly distributed in microorganisms, plants and animals, and play roles in various key physiological and pathological processes. These processes include cell structural integrity, energy storage, cellular signaling, fertilization, pathogen defense, viral penetration, the development of carcinomas, inflammatory events and lysosomal storage disorders. The GH20 enzymes include the eukaryotic beta-N-acetylhexosaminidases A and B, the bacterial chitobiases, dispersin B, and lacto-N-biosidase. The GH20 hexosaminidases are thought to act via a catalytic mechanism in which the catalytic nucleophile is not provided by the solvent or the enzyme, but by the substrate itself.
COG3525	Chb	1.70e-10	3	351	136	513	N-acetyl-beta-hexosaminidase [Carbohydrate transport and metabolism].
pfam02838	Glyco_hydro_20b	7.69e-10	28	122	26	123	Glycosyl hydrolase family 20, domain 2. This domain has a zincin-like fold.

CAZyme Hits help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End
QOV20378.1	3.70e-206	1	619	1	631
BCJ97085.1	7.41e-178	1	620	1	613
BCJ95063.1	5.75e-176	1	619	1	606
ABX40994.1	4.34e-172	1	620	1	604
BCJ98685.1	9.96e-171	1	620	3	617

PDB Hits download full data without filtering help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
4H04_A	2.90e-11	39	346	67	375	Lacto-N-biosidasefrom Bifidobacterium bifidum [Bifidobacterium bifidum JCM 1254],4H04_B Lacto-N-biosidase from Bifidobacterium bifidum [Bifidobacterium bifidum JCM 1254],4JAW_A Crystal Structure of Lacto-N-Biosidase from Bifidobacterium bifidum complexed with LNB-thiazoline [Bifidobacterium bifidum JCM 1254],4JAW_B Crystal Structure of Lacto-N-Biosidase from Bifidobacterium bifidum complexed with LNB-thiazoline [Bifidobacterium bifidum JCM 1254],5BXP_A LNBase in complex with LNB-LOGNAc [Bifidobacterium bifidum JCM 1254],5BXP_B LNBase in complex with LNB-LOGNAc [Bifidobacterium bifidum JCM 1254],5BXR_A LNBase in complex with LNB-NHAcDNJ [Bifidobacterium bifidum JCM 1254],5BXR_B LNBase in complex with LNB-NHAcDNJ [Bifidobacterium bifidum JCM 1254],5BXS_A LNBase in complex with LNB-NHAcCAS [Bifidobacterium bifidum JCM 1254],5BXS_B LNBase in complex with LNB-NHAcCAS [Bifidobacterium bifidum JCM 1254],5BXT_A LNBase in complex with LNB-NHAcAUS [Bifidobacterium bifidum JCM 1254],5BXT_B LNBase in complex with LNB-NHAcAUS [Bifidobacterium bifidum JCM 1254]
6JE8_A	4.38e-09	70	212	30	193	crystalstructure of a beta-N-acetylhexosaminidase [Akkermansia muciniphila ATCC BAA-835],6JEA_A crystal structure of a beta-N-acetylhexosaminidase [Akkermansia muciniphila ATCC BAA-835],6JEB_A crystal structure of a beta-N-acetylhexosaminidase [Akkermansia muciniphila ATCC BAA-835]

Swiss-Prot Hits download full data without filtering help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
B2UPR7	7.29e-17	47	326	150	445	Beta-hexosaminidase Amuc_2136 OS=Akkermansia muciniphila (strain ATCC BAA-835 / DSM 22959 / JCM 33894 / BCRC 81048 / CCUG 64013 / CIP 107961 / Muc) OX=349741 GN=Amuc_2136 PE=1 SV=1
Q3U4H6	2.66e-09	137	417	17	305	Hexosaminidase D OS=Mus musculus OX=10090 GN=Hexd PE=1 SV=1
B2UP57	2.51e-08	70	212	51	214	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
A6QNR0	1.16e-07	137	351	9	220	Hexosaminidase D OS=Bos taurus OX=9913 GN=HEXD PE=2 SV=2
P49009	2.57e-07	66	326	109	398	Beta-hexosaminidase subunit alpha OS=Entamoeba histolytica OX=5759 GN=HEXA PE=1 SV=2

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
1.000049	0.000000	0.000000	0.000000	0.000000	0.000000

TMHMM Annotations help

There is no transmembrane helices in MGYG000003854_00343.