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CAZyme Information: RL4_JR_05297-RA-p1

You are here: Home > Sequence: RL4_JR_05297-RA-p1

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 Raffaelea lauricola
Lineage Ascomycota; Sordariomycetes; ; Ophiostomataceae; Raffaelea; Raffaelea lauricola
CAZyme ID RL4_JR_05297-RA-p1
CAZy Family GH2
CAZyme Description unspecified product
CAZyme Property
Protein Length CGC Molecular Weight Isoelectric Point
629 68746.50 4.9466
Genome Property
Genome Version/Assembly ID Genes Strain NCBI Taxon ID Non Protein Coding Genes Protein Coding Genes
FungiDB-61_RlauricolaRL4 10461 N/A 146 10315
Gene Location

Full Sequence      Download help

Enzyme Prediction      help

EC 3.2.1.52:9

CAZyme Signature Domains help

Family Start End Evalue family coverage
GH20 231 576 3.9e-82 0.9762611275964391

CDD Domains      download full data without filtering help

Cdd ID Domain E-Value qStart qEnd sStart sEnd Domain Description
119332 GH20_HexA_HexB-like 2.16e-142 237 605 1 348
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.
395590 Glyco_hydro_20 1.31e-103 237 576 1 345
Glycosyl hydrolase family 20, catalytic domain. This domain has a TIM barrel fold.
119336 GH20_SpHex_like 3.35e-51 237 576 1 316
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.
119333 GH20_chitobiase-like 1.40e-50 237 578 1 346
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.
119331 GH20_hexosaminidase 4.77e-50 239 575 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
1.21e-264 11 627 15 579
5.37e-259 8 624 12 577
3.73e-258 16 620 19 575
8.20e-256 2 625 6 607
8.20e-256 2 625 6 607

PDB Hits      download full data without filtering help

Hit ID E-Value Query Start Query End Hit Start Hit End Description
1.55e-70 177 624 124 570
Crystal structure of insect beta-N-acetyl-D-hexosaminidase OfHex1 complexed with naphthalimide derivative Q1 [Ostrinia furnacalis],3WMC_A Crystal structure of insect beta-N-acetyl-D-hexosaminidase OfHex1 complexed with naphthalimide derivative Q2 [Ostrinia furnacalis]
1.77e-70 177 624 124 570
Crystal Structure of insect beta-N-acetyl-D-hexosaminidase OfHex1 complexed with a berberine derivative (SYSU-00679) [Ostrinia furnacalis]
3.01e-70 177 624 124 570
Crystal Structure of insect beta-N-acetyl-D-hexosaminidase OfHex1 from Ostrinia furnacalis [Ostrinia furnacalis],3NSN_A Crystal Structure of insect beta-N-acetyl-D-hexosaminidase OfHex1 complexed with TMG-chitotriomycin [Ostrinia furnacalis],3OZO_A Crystal Structure of insect beta-N-acetyl-D-hexosaminidase OfHex1 complexed with NGT [Ostrinia furnacalis],3OZP_A Crystal Structure of insect beta-N-acetyl-D-hexosaminidase OfHex1 complexed with PUGNAc [Ostrinia furnacalis]
3.22e-70 177 624 127 573
Crystal Structure of insect beta-N-acetyl-D-hexosaminidase OfHex1 V327G complexed with PUGNAc [Ostrinia furnacalis]
2.51e-69 177 624 124 570
Crystal Structure of insect beta-N-acetyl-D-hexosaminidase OfHex1 complexed with berberine [Ostrinia furnacalis]

Swiss-Prot Hits      download full data without filtering help

Hit ID E-Value Query Start Query End Hit Start Hit End Description
2.94e-135 15 622 16 602
Beta-hexosaminidase ARB_07893 OS=Arthroderma benhamiae (strain ATCC MYA-4681 / CBS 112371) OX=663331 GN=ARB_07893 PE=1 SV=1
1.89e-91 155 624 96 570
Beta-hexosaminidase 2 OS=Arabidopsis thaliana OX=3702 GN=HEXO2 PE=1 SV=1
2.47e-71 160 624 102 585
Beta-hexosaminidase 1 OS=Coccidioides posadasii (strain RMSCC 757 / Silveira) OX=443226 GN=HEX1 PE=1 SV=1
2.50e-69 177 624 146 592
Chitooligosaccharidolytic beta-N-acetylglucosaminidase OS=Ostrinia furnacalis OX=93504 PE=1 SV=1
5.54e-69 178 624 138 605
Probable beta-hexosaminidase ARB_01353 OS=Arthroderma benhamiae (strain ATCC MYA-4681 / CBS 112371) OX=663331 GN=ARB_01353 PE=1 SV=1

SignalP and Lipop Annotations help

This protein is predicted as SP

Other SP_Sec_SPI CS Position
0.000416 0.999568 CS pos: 17-18. Pr: 0.9654

TMHMM  Annotations      help

There is no transmembrane helices in RL4_JR_05297-RA-p1.