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CAZyme Information: MGYG000004197_00454
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Basic Information |
Genomic context |
Full Sequence |
Enzyme annotations |
CAZy signature domains |
CDD domains |
CAZyme hits |
PDB hits |
Swiss-Prot hits |
SignalP and Lipop annotations |
TMHMM annotations
Basic Information help
| Species | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lineage | Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Rikenellaceae; Alistipes_A; | |||||||||||
| CAZyme ID | MGYG000004197_00454 | |||||||||||
| CAZy Family | GH20 | |||||||||||
| CAZyme Description | Beta-hexosaminidase | |||||||||||
| CAZyme Property |
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| Genome Property |
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| Gene Location | Start: 27691; End: 29292 Strand: - | |||||||||||
CAZyme Signature Domains help
| Family | Start | End | Evalue | family coverage |
|---|---|---|---|---|
| GH20 | 150 | 500 | 6.5e-109 | 0.9762611275964391 |
CDD Domains download full data without filtering help
| Cdd ID | Domain | E-Value | qStart | qEnd | sStart | sEnd | Domain Description |
|---|---|---|---|---|---|---|---|
| cd06563 | GH20_chitobiase-like | 2.10e-163 | 156 | 512 | 1 | 356 | 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 | 5.99e-132 | 156 | 500 | 1 | 345 | Glycosyl hydrolase family 20, catalytic domain. This domain has a TIM barrel fold. |
| COG3525 | Chb | 3.35e-98 | 17 | 513 | 125 | 628 | N-acetyl-beta-hexosaminidase [Carbohydrate transport and metabolism]. |
| cd06570 | GH20_chitobiase-like_1 | 6.31e-93 | 156 | 512 | 1 | 310 | A functionally uncharacterized subgroup of the Glycosyl hydrolase family 20 (GH20) catalytic domain found in proteins similar to the chitobiase of Serratia marcescens, a beta-N-1,4-acetylhexosaminidase 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 subgroup 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. |
| cd06562 | GH20_HexA_HexB-like | 2.64e-81 | 156 | 513 | 1 | 337 | 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 help
| Hit ID | E-Value | Query Start | Query End | Hit Start | Hit End |
|---|---|---|---|---|---|
| QGA24333.1 | 0.0 | 1 | 533 | 1 | 532 |
| SCM59072.1 | 8.59e-238 | 1 | 529 | 1 | 526 |
| CAZ97490.1 | 9.18e-156 | 9 | 524 | 8 | 526 |
| BCI64811.1 | 1.43e-153 | 26 | 524 | 21 | 518 |
| ALJ60896.1 | 8.77e-152 | 1 | 524 | 1 | 525 |
PDB Hits download full data without filtering help
| Hit ID | E-Value | Query Start | Query End | Hit Start | Hit End | Description |
|---|---|---|---|---|---|---|
| 7CBN_A | 3.62e-87 | 29 | 512 | 14 | 495 | 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] |
| 6Q63_A | 1.17e-81 | 17 | 525 | 21 | 534 | BT0459[Bacteroides thetaiotaomicron],6Q63_B BT0459 [Bacteroides thetaiotaomicron],6Q63_C BT0459 [Bacteroides thetaiotaomicron] |
| 7DUP_A | 2.58e-81 | 26 | 525 | 4 | 518 | ChainA, Beta-N-acetylhexosaminidase [Bacteroides thetaiotaomicron],7DVA_A Chain A, Beta-N-acetylhexosaminidase [Bacteroides thetaiotaomicron],7DVA_B Chain B, Beta-N-acetylhexosaminidase [Bacteroides thetaiotaomicron] |
| 7DVB_A | 1.41e-80 | 26 | 525 | 4 | 518 | 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] |
| 6YHH_A | 1.98e-76 | 95 | 524 | 88 | 502 | X-rayStructure of Flavobacterium johnsoniae chitobiase (FjGH20) [Flavobacterium johnsoniae UW101],6YHH_B X-ray Structure of Flavobacterium johnsoniae chitobiase (FjGH20) [Flavobacterium johnsoniae UW101] |
Swiss-Prot Hits download full data without filtering help
| Hit ID | E-Value | Query Start | Query End | Hit Start | Hit End | Description |
|---|---|---|---|---|---|---|
| B2UQG6 | 2.64e-86 | 29 | 512 | 33 | 514 | 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 |
| P96155 | 8.60e-81 | 25 | 497 | 138 | 604 | Beta-hexosaminidase OS=Vibrio furnissii OX=29494 GN=exoI PE=1 SV=1 |
| P49008 | 1.95e-77 | 23 | 512 | 32 | 517 | Beta-hexosaminidase OS=Porphyromonas gingivalis (strain ATCC BAA-308 / W83) OX=242619 GN=nahA PE=3 SV=2 |
| B2UP57 | 2.22e-57 | 91 | 512 | 51 | 461 | 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 |
| P20060 | 1.15e-45 | 93 | 512 | 120 | 507 | Beta-hexosaminidase subunit beta OS=Mus musculus OX=10090 GN=Hexb PE=1 SV=2 |
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 |
|---|---|---|---|---|---|
| 0.000295 | 0.998952 | 0.000268 | 0.000171 | 0.000160 | 0.000136 |