dbCAN-seq: a database of CAZyme sequence and annotation

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CAZyme Information: MGYG000001657_00868

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Basic Information help

Species

RC9 sp900760425

Lineage

Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; UBA932; RC9; RC9 sp900760425

CAZyme ID

MGYG000001657_00868

CAZy Family

GH20

CAZyme Description

hypothetical protein

CAZyme Property

Protein Length	CGC	Molecular Weight	Isoelectric Point
509	MGYG000001657_37\|CGC1	58051.26	5.8577

Genome Property

Genome Assembly ID	Genome Size	Genome Type	Country	Continent
MGYG000001657	2980281	MAG	United States	North America

Gene Location

Start: 11644; End: 13173 Strand: -

Full Sequence Download help

Enzyme Prediction help

No EC number prediction in MGYG000001657_00868.

CAZyme Signature Domains help

Family	Start	End	Evalue	family coverage
GH20	22	274	1.2e-35	0.7566765578635015

CDD Domains download full data without filtering help

Cdd ID	Domain	E-Value	qStart	qEnd	sStart	sEnd	Domain Description
cd06565	GH20_GcnA-like	3.15e-76	27	304	1	280	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.
pfam00728	Glyco_hydro_20	6.58e-20	81	295	75	294	Glycosyl hydrolase family 20, catalytic domain. This domain has a TIM barrel fold.
cd06563	GH20_chitobiase-like	2.81e-17	81	233	83	241	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.
cd02742	GH20_hexosaminidase	3.11e-15	28	301	2	277	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.
cd06564	GH20_DspB_LnbB-like	2.58e-12	76	284	74	262	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.

CAZyme Hits help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End
ALJ60693.1	4.77e-159	8	483	12	488
QUT88323.1	4.77e-159	8	483	12	488
QIU93919.1	2.01e-150	22	483	32	489
AVM54072.1	1.05e-143	25	508	27	508
AYN69240.1	1.86e-133	23	484	15	476

PDB Hits help

has no PDB hit.

Swiss-Prot Hits download full data without filtering help

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
Q8WVB3	1.49e-23	20	262	2	256	Hexosaminidase D OS=Homo sapiens OX=9606 GN=HEXD PE=1 SV=3
A6QNR0	4.96e-23	28	262	2	248	Hexosaminidase D OS=Bos taurus OX=9913 GN=HEXD PE=2 SV=2
Q3U4H6	1.24e-21	25	262	7	256	Hexosaminidase D OS=Mus musculus OX=10090 GN=Hexd 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
0.015538	0.844846	0.138045	0.000633	0.000417	0.000493

TMHMM Annotations download full data without filtering help

start	end
7	29