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CAZyme Information: MGYG000001445_03799

You are here: Home > Sequence: MGYG000001445_03799

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 Cedecea davisae
Lineage Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales; Enterobacteriaceae; Cedecea; Cedecea davisae
CAZyme ID MGYG000001445_03799
CAZy Family GH20
CAZyme Description hypothetical protein
CAZyme Property
Protein Length CGC Molecular Weight Isoelectric Point
796 MGYG000001445_1|CGC49 88448.69 5.9766
Genome Property
Genome Assembly ID Genome Size Genome Type Country Continent
MGYG000001445 4852695 Isolate not provided not provided
Gene Location Start: 4120182;  End: 4122572  Strand: -

Full Sequence      Download help

Enzyme Prediction      help

EC 3.2.1.52

CAZyme Signature Domains help

Family Start End Evalue family coverage
GH20 158 587 6.1e-117 0.9703264094955489

CDD Domains      download full data without filtering help

Cdd ID Domain E-Value qStart qEnd sStart sEnd Domain Description
cd06570 GH20_chitobiase-like_1 1.65e-177 162 600 1 311
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.
cd06563 GH20_chitobiase-like 7.38e-127 162 600 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 2.43e-114 162 587 1 345
Glycosyl hydrolase family 20, catalytic domain. This domain has a TIM barrel fold.
cd06562 GH20_HexA_HexB-like 4.56e-100 162 602 1 339
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.
cd02742 GH20_hexosaminidase 4.02e-80 164 586 1 303
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.

CAZyme Hits      help

Hit ID E-Value Query Start Query End Hit Start Hit End
QIX96251.1 0.0 1 796 1 796
AIR05884.1 0.0 1 796 1 796
AIR59590.1 0.0 1 796 1 796
AIR64006.1 0.0 1 796 1 796
VEB95290.1 0.0 1 796 1 796

PDB Hits      download full data without filtering help

Hit ID E-Value Query Start Query End Hit Start Hit End Description
6YHH_A 6.53e-127 27 791 6 672
X-rayStructure of Flavobacterium johnsoniae chitobiase (FjGH20) [Flavobacterium johnsoniae UW101],6YHH_B X-ray Structure of Flavobacterium johnsoniae chitobiase (FjGH20) [Flavobacterium johnsoniae UW101]
7CBN_A 6.77e-64 110 387 78 377
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 2.74e-63 105 429 101 448
BT0459[Bacteroides thetaiotaomicron],6Q63_B BT0459 [Bacteroides thetaiotaomicron],6Q63_C BT0459 [Bacteroides thetaiotaomicron]
2GK1_I 2.64e-58 103 600 19 412
X-raycrystal structure of NGT-bound HexA [Homo sapiens],2GK1_J X-ray crystal structure of NGT-bound HexA [Homo sapiens],2GK1_K X-ray crystal structure of NGT-bound HexA [Homo sapiens],2GK1_L X-ray crystal structure of NGT-bound HexA [Homo sapiens]
2GJX_A 3.43e-58 30 600 1 478
Crystallographicstructure of human beta-Hexosaminidase A [Homo sapiens],2GJX_D Crystallographic structure of human beta-Hexosaminidase A [Homo sapiens],2GJX_E Crystallographic structure of human beta-Hexosaminidase A [Homo sapiens],2GJX_H Crystallographic structure of human beta-Hexosaminidase A [Homo sapiens]

Swiss-Prot Hits      download full data without filtering help

Hit ID E-Value Query Start Query End Hit Start Hit End Description
P49008 1.09e-69 34 435 39 450
Beta-hexosaminidase OS=Porphyromonas gingivalis (strain ATCC BAA-308 / W83) OX=242619 GN=nahA PE=3 SV=2
B2UQG6 4.72e-63 110 387 97 396
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
P49614 2.10e-61 84 600 86 503
Beta-hexosaminidase subunit beta OS=Felis catus OX=9685 GN=HEXB PE=2 SV=2
P96155 1.08e-60 22 415 133 535
Beta-hexosaminidase OS=Vibrio furnissii OX=29494 GN=exoI PE=1 SV=1
P20060 5.81e-60 83 613 99 520
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
0.000397 0.554834 0.444051 0.000293 0.000227 0.000184

TMHMM  Annotations      help

There is no transmembrane helices in MGYG000001445_03799.