CAZyme Information: MGYG000002683_00814

Basic Information

• Lineage: Bacteria; Firmicutes_A; Clostridia; RUG12999; RUG12999
• CAZyme ID: MGYG000002683_00814
• CAZy Family: GH20
• CAZyme Description: hypothetical protein

CAZyme Property

Protein Length	CGC	Molecular Weight	Isoelectric Point
608	MGYG000002683_38|CGC1	70659.13	5.1152

Genome Property

Genome Assembly ID	Genome Size	Genome Type	Country	Continent
MGYG000002683	3225682	MAG	Canada	North America

• Gene Location: Start: 8443; End: 10269 Strand: +

Full Sequence      

MNFTGDIKELQEGINLILNEENLNADVEVQKGDCLKISEKDGKYKIGFSAKSEFFRGLTI
LADKIKKGEKDFEVVQKKQFNSCGIMIDVSRRAVLKPETVKIIIRYMAKMGLNMMMLYTE
DTFKMDKYPYFGYLRGAYTKDEIKELVAYGEKFGIELVPCIQTLAHLATTLRWGYADGMK
DTGDILLIDEEKTYEFIEEMIKTSRECYKTDKIHIGMDEAGDVGFGEYFRRHGYVNRFEL
LSRHLKRVMEITDKYGFKPMMWSDMFFRLASKNGSYYDTSAKMPENISELIPENISMVYW
DYYNTDEKVYDFMIKTHQEMKRNVVFAGGIWTWIGLSPQYDKTFITTKLGLSSCRKNGIK
DVFATMWGDDGAECSIFAALLGLQLYGEYNYFDEVSDEHLAEMFKICTGYDMDAFSVFNI
DDFGELCKDHDAAVSKQVFYSDVLLGLFDKNLAKLDLKKHYKEIADKFDTIKKQPGLEYL
FDYQKQLVSILYKKCTMGIDVTEAYRKGDKVKLGELAKEIREIANDTEIIRKMQYEIWNR
NNKAFGFEFFDSKFGGRIARLLTAAQRIEDYIEGKIDKIEELDEEKLYYSGNENPFIHQY
CAGMIQMT

Enzyme Prediction     

No EC number prediction in MGYG000002683_00814.

CAZyme Signature Domains

Family	Start	End	Evalue	family coverage
GH20	77	371	3.3e-41	0.8961424332344213

CDD Domains     

Cdd ID	Domain	E-Value	qStart	qEnd	sStart	sEnd	Domain Description
cd06565	GH20_GcnA-like	7.82e-112	84	391	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.
pfam18088	Glyco_H_20C_C	1.32e-50	430	593	21	186	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.
cd02742	GH20_hexosaminidase	1.62e-46	84	373	3	282	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.
pfam00728	Glyco_hydro_20	5.42e-18	84	266	5	223	Glycosyl hydrolase family 20, catalytic domain. This domain has a TIM barrel fold.
cd06564	GH20_DspB_LnbB-like	1.16e-17	84	303	4	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.

CAZyme Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End
QUG40135.1	1.81e-186	1	593	3	603
ALV21422.1	1.03e-177	3	591	5	601
QQP69431.1	1.45e-177	3	591	5	601
ALC91381.1	1.51e-174	1	591	3	602
QIZ10344.1	1.77e-173	1	589	3	600

PDB Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
2EPL_X	8.57e-125	18	590	22	599	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]
5A69_A	4.71e-120	3	590	27	621	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	4.71e-120	3	590	27	621	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]
5AC4_A	1.32e-119	3	590	27	621	GH20C,Beta-hexosaminidase from Streptococcus pneumoniae in complex with GalNAc [Streptococcus pneumoniae TIGR4],5AC4_B GH20C, Beta-hexosaminidase from Streptococcus pneumoniae in complex with GalNAc [Streptococcus pneumoniae TIGR4]
2EPK_X	1.10e-118	18	590	22	599	N-acetyl-B-D-glucosaminidase(GCNA) from Streptococcus gordonii [Streptococcus gordonii]

Swiss-Prot Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
Q86M34	9.69e-10	84	266	191	403	Beta-hexosaminidase subunit beta OS=Entamoeba histolytica OX=5759 GN=HEXB PE=1 SV=1
A6QNR0	6.02e-06	110	302	28	217	Hexosaminidase D OS=Bos taurus OX=9913 GN=HEXD PE=2 SV=2
Q8WVB3	6.30e-06	110	302	36	225	Hexosaminidase D OS=Homo sapiens OX=9606 GN=HEXD PE=1 SV=3

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
1.000049	0.000000	0.000000	0.000000	0.000000	0.000000

TMHMM  Annotations     

There is no transmembrane helices in MGYG000002683_00814.