CAZyme Information: MGYG000004881_00170

Basic Information

• Lineage: Bacteria; Firmicutes_A; Clostridia; Monoglobales_A; UBA1381; UBA4716
• CAZyme ID: MGYG000004881_00170
• CAZy Family: GH20
• CAZyme Description: hypothetical protein

CAZyme Property

Protein Length	CGC	Molecular Weight	Isoelectric Point
589	MGYG000004881_17|CGC1	67992.37	4.7563

Genome Property

Genome Assembly ID	Genome Size	Genome Type	Country	Continent
MGYG000004881	2323503	MAG	China	Asia

• Gene Location: Start: 7560; End: 9329 Strand: -

Full Sequence      

MIKEKIFAVTGFPFDGEIEEISFDGVYVRRSGGNAVIGYSTKAQKARCYFMLSMLCKEGK
TDCEIKEKPVFDLCGPMLDLSRGSVMRAENVKRYIDRMAALGLNMLMLYTEDIYELDGYP
MFGYLRGRYSESELKEIDDYAFEMGVELIPCIQTLGHLQNYIRWGEAADFAENGNVLLPD
EEKTYKFIEAEIKTMRKCLRSDRINLGMDEAVGLGTGKYFQKHGFENKLDIFNRHLEKVL
KIAKKYNYSPMIWGDMYFSETDDNYYYEPDAVIPQKAIDSAPQEPELVFWDYYHTYYDYY
DKKLEQYARFPNTASFAGGVWTWDGFAPNFRYTCDSMIPALKCCIDRGIKTVIATMWENG
GSETDFFDAFDGLAVFSEYCYKGNECTEQDIYSAASLITGSGADFIDAVASFHFGKDGSV
GLGKGIFYCDPLINLLCYDMDYAKAADTCKKALDTFEKYSAHPKYSYYKLLFEIILKKAG
LIDGLQREYKANNKKYLSETAEKTIPELQKLYKQFYEVFGENWLRVNKPFGYEVFAQRFG
GIDLRLSYAQKRLLEYCEGKTDRIEELEEEIVTGLNKTWRYANNYMNTI

Enzyme Prediction     

No EC number prediction in MGYG000004881_00170.

CAZyme Signature Domains

Family	Start	End	Evalue	family coverage
GH20	68	382	1.8e-38	0.9643916913946587

CDD Domains     

Cdd ID	Domain	E-Value	qStart	qEnd	sStart	sEnd	Domain Description
cd06565	GH20_GcnA-like	6.02e-90	75	381	3	300	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.
cd02742	GH20_hexosaminidase	4.35e-33	75	365	3	284	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.
pfam18088	Glyco_H_20C_C	8.46e-30	424	572	27	180	Glycoside Hydrolase 20C C-terminal domain. This is the C-terminal domain of Glycoside hydrolase 20 C (GH20C) present in S. pneumoniae. GH20C possesses the ability to hydrolyze the beta-linkages joining either N-acetylglucosamine or N-acetylgalactosamine to a wide variety of aglycon residues. The C-terminal domain is commonly known as Domain III is important in dimerization as it forms the primary interface of the dimer. However, there is presently no evidence supporting dimerization as being necessary for catalysis. Domain III is unusual among structurally characterized GH20 enzymes but in GH20 enzymes possessing domain III, dimerization seems to be a conserved feature.
pfam00728	Glyco_hydro_20	4.14e-15	75	273	5	236	Glycosyl hydrolase family 20, catalytic domain. This domain has a TIM barrel fold.
cd06562	GH20_HexA_HexB-like	1.95e-14	75	273	5	225	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
QUD74125.1	4.82e-117	32	570	59	608
AMN32488.1	4.82e-117	32	570	59	608
AQW26363.1	2.68e-116	32	570	59	608
ABG83419.1	5.31e-116	32	570	59	608
AQW23412.1	7.48e-116	32	570	59	608

PDB Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
2EPL_X	2.73e-97	22	572	35	596	N-acetyl-B-D-glucosaminidase(GCNA) from Streptococcus gordonii [Streptococcus gordonii],2EPM_X N-acetyl-B-D-glucoasminidase (GCNA) from Stretococcus gordonii [Streptococcus gordonii],2EPN_A N-acetyl-B-D-glucosaminidase (GCNA) from Streptococcus gordonii [Streptococcus gordonii],2EPN_B N-acetyl-B-D-glucosaminidase (GCNA) from Streptococcus gordonii [Streptococcus gordonii],2EPO_A N-acetyl-B-D-glucosaminidase (GCNA) from Streptococcus gordonii [Streptococcus gordonii],2EPO_B N-acetyl-B-D-glucosaminidase (GCNA) from Streptococcus gordonii [Streptococcus gordonii]
2EPK_X	2.76e-92	22	572	35	596	N-acetyl-B-D-glucosaminidase(GCNA) from Streptococcus gordonii [Streptococcus gordonii]
5A6B_D	2.50e-85	64	572	99	617	GH20C,Beta-hexosaminidase from Streptococcus pneumoniae in complex with PUGNAc [Streptococcus pneumoniae TIGR4]
5A69_A	2.55e-85	64	572	99	618	GH20C,Beta-hexosaminidase from Streptococcus pneumoniae in complex with Gal-PUGNAc [Streptococcus pneumoniae TIGR4],5A6A_A GH20C, Beta-hexosaminidase from Streptococcus pneumoniae in complex with NGT [Streptococcus pneumoniae TIGR4],5A6A_B GH20C, Beta-hexosaminidase from Streptococcus pneumoniae in complex with NGT [Streptococcus pneumoniae TIGR4],5A6J_A GH20C, Beta-hexosaminidase from Streptococcus pneumoniae [Streptococcus pneumoniae TIGR4],5A6J_B GH20C, Beta-hexosaminidase from Streptococcus pneumoniae [Streptococcus pneumoniae TIGR4],5A6J_C GH20C, Beta-hexosaminidase from Streptococcus pneumoniae [Streptococcus pneumoniae TIGR4],5A6J_D GH20C, Beta-hexosaminidase from Streptococcus pneumoniae [Streptococcus pneumoniae TIGR4],5A6K_A GH20C, Beta-hexosaminidase from Streptococcus pneumoniae in complex with Gal-NGT [Streptococcus pneumoniae TIGR4],5A6K_B GH20C, Beta-hexosaminidase from Streptococcus pneumoniae in complex with Gal-NGT [Streptococcus pneumoniae TIGR4],5AC5_A GH20C, Beta-hexosaminidase from Streptococcus pneumoniae in complex with GlcNAc [Streptococcus pneumoniae TIGR4],5AC5_B GH20C, Beta-hexosaminidase from Streptococcus pneumoniae in complex with GlcNAc [Streptococcus pneumoniae TIGR4]
5A6B_A	2.55e-85	64	572	99	618	GH20C,Beta-hexosaminidase from Streptococcus pneumoniae in complex with PUGNAc [Streptococcus pneumoniae TIGR4],5A6B_B GH20C, Beta-hexosaminidase from Streptococcus pneumoniae in complex with PUGNAc [Streptococcus pneumoniae TIGR4],5A6B_C GH20C, Beta-hexosaminidase from Streptococcus pneumoniae in complex with PUGNAc [Streptococcus pneumoniae TIGR4]

Swiss-Prot Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
Q8WVB3	6.39e-11	78	292	14	225	Hexosaminidase D OS=Homo sapiens OX=9606 GN=HEXD PE=1 SV=3
Q3U4H6	1.48e-10	78	292	14	225	Hexosaminidase D OS=Mus musculus OX=10090 GN=Hexd PE=1 SV=1
A6QNR0	3.48e-10	100	327	27	246	Hexosaminidase D OS=Bos taurus OX=9913 GN=HEXD PE=2 SV=2
P43077	4.98e-06	65	260	160	373	Beta-hexosaminidase OS=Candida albicans OX=5476 GN=HEX1 PE=1 SV=1

SignalP and Lipop Annotations

This protein is predicted as OTHER

Other	SP_Sec_SPI	LIPO_Sec_SPII	TAT_Tat_SPI	TATLIP_Sec_SPII	PILIN_Sec_SPIII
1.000029	0.000000	0.000000	0.000000	0.000000	0.000000

TMHMM  Annotations     

There is no transmembrane helices in MGYG000004881_00170.