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CAZyme Information: MGYG000002000_00176
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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; Firmicutes_A; Clostridia_A; Christensenellales; CAG-917; CAG-917; | |||||||||||
| CAZyme ID | MGYG000002000_00176 | |||||||||||
| CAZy Family | GH20 | |||||||||||
| CAZyme Description | Beta-hexosaminidase | |||||||||||
| CAZyme Property |
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| Genome Property |
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| Gene Location | Start: 3936; End: 5531 Strand: + | |||||||||||
CAZyme Signature Domains help
| Family | Start | End | Evalue | family coverage |
|---|---|---|---|---|
| GH20 | 129 | 462 | 2.9e-100 | 0.973293768545994 |
CDD Domains download full data without filtering help
| Cdd ID | Domain | E-Value | qStart | qEnd | sStart | sEnd | Domain Description |
|---|---|---|---|---|---|---|---|
| cd06563 | GH20_chitobiase-like | 2.60e-142 | 134 | 474 | 1 | 357 | 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 | 9.63e-122 | 134 | 462 | 1 | 345 | Glycosyl hydrolase family 20, catalytic domain. This domain has a TIM barrel fold. |
| cd06568 | GH20_SpHex_like | 3.60e-87 | 134 | 473 | 1 | 328 | A subgroup of the Glycosyl hydrolase family 20 (GH20) catalytic domain found in proteins similar to the N-acetylhexosaminidase from Streptomyces plicatus (SpHex). SpHex catalyzes the hydrolysis of N-acetyl-beta-hexosaminides. An Asp residue within the active site plays a critical role in substrate-assisted catalysis by orienting the 2-acetamido group and stabilizing the transition state. 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. Proteins belonging to this subgroup lack the C-terminal PKD (polycystic kidney disease I)-like domain found in the chitobiases. |
| COG3525 | Chb | 1.24e-80 | 8 | 486 | 134 | 640 | N-acetyl-beta-hexosaminidase [Carbohydrate transport and metabolism]. |
| cd06562 | GH20_HexA_HexB-like | 5.99e-80 | 134 | 473 | 1 | 336 | 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 |
|---|---|---|---|---|---|
| QUH29206.1 | 7.62e-107 | 10 | 529 | 5 | 526 |
| AXE19129.1 | 2.74e-99 | 7 | 486 | 19 | 490 |
| AHC16348.1 | 5.36e-98 | 83 | 510 | 69 | 499 |
| QDO95740.1 | 6.12e-94 | 2 | 471 | 22 | 534 |
| AQQ09750.1 | 1.51e-92 | 8 | 481 | 50 | 544 |
PDB Hits download full data without filtering help
| Hit ID | E-Value | Query Start | Query End | Hit Start | Hit End | Description |
|---|---|---|---|---|---|---|
| 6JE8_A | 1.79e-76 | 79 | 481 | 36 | 448 | 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] |
| 6Q63_A | 2.38e-75 | 78 | 488 | 102 | 533 | BT0459[Bacteroides thetaiotaomicron],6Q63_B BT0459 [Bacteroides thetaiotaomicron],6Q63_C BT0459 [Bacteroides thetaiotaomicron] |
| 7DUP_A | 9.14e-70 | 6 | 483 | 2 | 515 | 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 | 4.89e-69 | 6 | 483 | 2 | 515 | 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] |
| 7CBN_A | 5.80e-67 | 66 | 503 | 61 | 525 | 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] |
Swiss-Prot Hits download full data without filtering help
| Hit ID | E-Value | Query Start | Query End | Hit Start | Hit End | Description |
|---|---|---|---|---|---|---|
| P49008 | 1.36e-75 | 5 | 473 | 32 | 517 | Beta-hexosaminidase OS=Porphyromonas gingivalis (strain ATCC BAA-308 / W83) OX=242619 GN=nahA PE=3 SV=2 |
| B2UP57 | 1.83e-75 | 79 | 481 | 57 | 469 | 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 |
| B2UQG6 | 4.05e-66 | 66 | 503 | 80 | 544 | 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 | 7.50e-55 | 8 | 459 | 139 | 604 | Beta-hexosaminidase OS=Vibrio furnissii OX=29494 GN=exoI PE=1 SV=1 |
| P07686 | 4.21e-46 | 78 | 464 | 143 | 518 | Beta-hexosaminidase subunit beta OS=Homo sapiens OX=9606 GN=HEXB PE=1 SV=4 |
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 |
|---|---|---|---|---|---|
| 1.000053 | 0.000000 | 0.000000 | 0.000000 | 0.000000 | 0.000000 |