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IPR000111

Description

IPR000111 is a Glycoside hydrolase family 27/36, conserved site.

<p>O-Glycosyl hydrolases ([ec:3.2.1]) are a widespread group of enzymes that hydrolyse the glycosidic bond between two or more carbohydrates, or between a carbohydrate and a non-carbohydrate moiety. A classification system for glycosyl hydrolases, based on sequence similarity, has led to the definition of 85 different families [[cite:PUB00004870], [cite:PUB00005266]]. This classification is available on the CAZy (CArbohydrate-Active EnZymes) web site. Families 27 ([cazy:GH27]) and 36 ([cazy:GH36]) encompasses alpha-galactosidases and alpha-N-acetylgalactosaminidases.</p> <p>Alpha-galactosidase ([ec:3.2.1.22]) (melibiase) [[cite:PUB00000002]] catalyses the hydrolysis of melibiose into galactose and glucose. In man, the deficiency of this enzyme is the cause of Fabry's disease (X-linked sphingolipidosis). Alpha-galactosidase is present in a variety of organisms. There is a considerable degree of similarity in the sequence of alpha-galactosidase from various eukaryotic species. Escherichia coli alpha-galactosidase (gene melA), which requires NAD and magnesium as cofactors, is not structurally related to the eukaryotic enzymes; by contrast, an Escherichia coli plasmid encoded alpha-galactosidase (gene rafA) [[cite:PUB00002094]] contains a region of about 50 amino acids which is similar to a domain of the eukaryotic alpha-galactosidases.</p> <p>Alpha-N-acetylgalactosaminidase ([ec:3.2.1.49]) [[cite:PUB00002595]] catalyses the hydrolysis of terminal non-reducing N-acetyl-D-galactosamine residues in N-acetyl-alpha-D-galactosaminides. In man, the deficiency of this enzyme is the cause of Schindler and Kanzaki diseases. The sequence of this enzyme is highly related to that of the eukaryotic alpha-galactosidases.</p> <p>This entry represents a conserved site in families 27 and 36. It contains two conserved aspartic acid residues which could be involved in the catalytic mechanism.</p>

This description is obtained from EB-eye REST.

Associated GO terms

GO predictions are based solely on the InterPro-to-GO mappings published by EMBL-EBI, which are in turn based on the mapping of predicted domains to the InterPro dataset. The InterPro-to-GO mapping was last updated on , while the GO metadata was last updated on .

GO term Namespace Name Definition Relationships
Molecular function Hydrolase activity, hydrolyzing O-glycosyl compounds Catalysis of the hydrolysis of any O-glycosyl bond.
Biological process Carbohydrate metabolic process The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y. Includes the formation of carbohydrate derivatives by the addition of a carbohydrate residue to another molecule.

Associated Lotus transcripts 7

Transcript Name Description Predicted domains Domain count
PREDICTED: alpha-galactosidase-like isoform 1 [Glycine max] gi|356516253|ref|XP_003526810.1| 24
Alpha-galactosidase; TAIR: AT3G56310.1 Melibiase family protein; Swiss-Prot: sp|Q8VXZ7|AGAL3_ARATH Alpha-galactosidase 3; TrEMBL-Plants: tr|I1KB92|I1KB92_SOYBN Alpha-galactosidase; Found in the gene: LotjaGi1g1v0308200 25
Alpha-galactosidase; TAIR: AT3G56310.1 Melibiase family protein; Swiss-Prot: sp|Q8VXZ7|AGAL3_ARATH Alpha-galactosidase 3; TrEMBL-Plants: tr|I1KB92|I1KB92_SOYBN Alpha-galactosidase; Found in the gene: LotjaGi1g1v0308200 25
Alpha-galactosidase; TAIR: AT5G08380.1 alpha-galactosidase 1; Swiss-Prot: sp|Q9FT97|AGAL1_ARATH Alpha-galactosidase 1; TrEMBL-Plants: tr|A0A072U1H6|A0A072U1H6_MEDTR Alpha-galactosidase; Found in the gene: LotjaGi1g1v0458400 25
Alpha-galactosidase; TAIR: AT5G08370.1 alpha-galactosidase 2; Swiss-Prot: sp|P14749|AGAL_CYATE Alpha-galactosidase; TrEMBL-Plants: tr|V7C549|V7C549_PHAVU Alpha-galactosidase; Found in the gene: LotjaGi2g1v0170000 22
Alpha-galactosidase; TAIR: AT5G08370.1 alpha-galactosidase 2; Swiss-Prot: sp|P14749|AGAL_CYATE Alpha-galactosidase; TrEMBL-Plants: tr|I1LBZ8|I1LBZ8_SOYBN Alpha-galactosidase; Found in the gene: LotjaGi5g1v0053000 25
Alpha-galactosidase; TAIR: AT5G08370.1 alpha-galactosidase 2; Swiss-Prot: sp|P14749|AGAL_CYATE Alpha-galactosidase; TrEMBL-Plants: tr|K7N4X3|K7N4X3_SOYBN Alpha-galactosidase; Found in the gene: LotjaGi5g1v0198300 23

Co-occuring domains 1

A list of co-occurring predicted domains within the L. japonicus gene space:

Predicted domain Source Observations Saturation (%)
cd14792 CDD 1 14.29