3.2.1.145: galactan 1,3-beta-galactosidase
This is an abbreviated version!
For detailed information about galactan 1,3-beta-galactosidase, go to the full flat file.
Word Map on EC 3.2.1.145
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3.2.1.145
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glycoside
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galactose
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oligosaccharide
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carbohydrate-binding
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phanerochaete
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exo-acting
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chrysosporium
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larch
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beta-1,6-linked
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arabinofuranose
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thermocellum
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dockerin
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arabinogalactan-proteins
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pectic
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beta-1,3-linkage
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avermitilis
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galactooligosaccharides
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analysis
- 3.2.1.145
- glycoside
- galactose
- oligosaccharide
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carbohydrate-binding
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phanerochaete
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exo-acting
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chrysosporium
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larch
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beta-1,6-linked
- arabinofuranose
- thermocellum
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dockerin
- arabinogalactan-proteins
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pectic
-
beta-1,3-linkage
- avermitilis
- galactooligosaccharides
- analysis
Reaction
Synonyms
arabinogalactan endo-1,3-beta-galactosidase, BbGal43A, beta-galactanase, Bl1,3Gal, Bl1,6Gal, BLLJ_1840, Ct1,3Gal43A, Cthe_0661, exo-/beta-1,3-galactanase, Exo-1,3-Gal, exo-beta-(1,3)-D-galactanase, exo-beta-(1->3)-D-galactanase, exo-beta-1,3-D -galactanase, exo-beta-1,3-D-galactanase, exo-beta-1,3-galactanase, exo-beta-1,6-galactobiohydrolase, Fo/1,3Gal, GH30_5 exo-beta-1,6-galactobiohydrolase, GH43_24 exo-beta-1,3-galactanase, Il1,3Gal, More, Pc1,3Gal43A, RsBGAL1, Sa1,3Gal43A, SGalase1, SGalase2
ECTree
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General Information on EC 3.2.1.145 - galactan 1,3-beta-galactosidase
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GENERAL INFORMATION 
ORGANISM
UNIPROT
COMMENTARY 
LITERATURE
evolution
metabolism
physiological function
type II arabinogalactan (AG) degradative enzymes, including Bl1,3Gal, Bl1,6Gal, and BlArafA. GH30_5 exo-beta-1,6-galactobiohydrolase (Bl1,6Gal, EC 3.2.1.145) and GH43_22 alpha-L-arabinofuranosidase (BlArafA, EC 3.2.1.55) are important for the acquisition of type II AG in Bifidobacterium longum
additional information
evolution
the enzyme belongs to the glycoside hydrolase family 43, GH43
evolution
the enzyme belongs to the glycoside hydrolase family 43, GH43, phylogenetic analysis and tree
evolution
the enzyme belongs to the glycoside hydrolase family 43, GH43, phylogenetic relationships of BLLJ_1840
evolution
the enzyme belongs to the glycosyl hydrolase family 30, GH30, subfamily 22. GH43_24 exo-beta-1,3-galactanase (Bl1,3Gal, EC 3.2.1.145) forms a gene cluster with GH30_5 and GH43_22 enzyme candidates, which are conserved in all Bifidobacterium longum strains
evolution
the enzyme belongs to the glycosyl hydrolase family 43, GH43, subfamily 24. GH43_24 exo-beta-1,3-galactanase (Bl1,3Gal) forms a gene cluster with GH30_5 exo-beta-1,6-galactobiohydrolase (Bl1,6Gal) and GH43_22 alpha-L-arabinofuranosidase (BlArafA) enzyme candidates, which are conserved in all Bifidobacterium longum strains
evolution
the enzyme belongs to the glycosyl hydrolase family 43, GH43. Structure comparisons reveal that structural and sequence homology between BbGal43A, Clostridium thermocellum Ct1,3Gal43A (PDB ID 3vsf), and Bacteroides thetaiotaomicron BT2959 (PDB ID 3nqh) indicate that all three enzymes might be different types of exo-beta-1,3-galactanase
evolution
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the enzyme belongs to the glycosyl hydrolase family 43, GH43. Structure comparisons reveal that structural and sequence homology between BbGal43A, Clostridium thermocellum Ct1,3Gal43A (PDB ID 3vsf), and Bacteroides thetaiotaomicron BT2959 (PDB ID 3nqh) indicate that all three enzymes might be different types of exo-beta-1,3-galactanase
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evolution
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the enzyme belongs to the glycoside hydrolase family 43, GH43, phylogenetic analysis and tree
-
evolution
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the enzyme belongs to the glycoside hydrolase family 43, GH43, phylogenetic relationships of BLLJ_1840
-
evolution
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the enzyme belongs to the glycosyl hydrolase family 43, GH43. Structure comparisons reveal that structural and sequence homology between BbGal43A, Clostridium thermocellum Ct1,3Gal43A (PDB ID 3vsf), and Bacteroides thetaiotaomicron BT2959 (PDB ID 3nqh) indicate that all three enzymes might be different types of exo-beta-1,3-galactanase
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metabolism
the enzyme shows a synergistic effect with related enzymes on degradation of type II arabinogalactan
metabolism
GH30_5 exo-beta-1,6-galactobiohydrolase (Bl1,6Gal, EC 3.2.1.145) and GH43_22 alpha-L-arabinofuranosidase (BlArafA, EC 3.2.1.55) are degradative enzymes for type II arabinogalactan (AG) side chains in cooperation with GH43_24 exo-beta-1,3-galactanase (Bl1,3Gal, EC 3.2.1.145)
metabolism
GH30_5 exo-beta-1,6-galactobiohydrolase (Bl1,6Gal, EC 3.2.1.145) and GH43_22 alpha-L-arabinofuranosidase (BlArafA, EC 3.2.1.55), which are degradative enzymes for type II arabinogalactan (AG) side chains in cooperation with GH43_24 exo-beta-1,3-galactanase (Bl1,3Gal, EC 3.2.1.145)
metabolism
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the enzyme shows a synergistic effect with related enzymes on degradation of type II arabinogalactan
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additional information
domain structures of BLLJ_1840 comprising the GH43 catalytic domain, bacterial Ig-like domain, CBM32, and the LPXTG cell wall anchor domain (Anchor), as well as the signal peptide
additional information
two modes of substrate binding are observed at the beta site of the CtCBM13 domain, and one galactobiose molecule is found in an L shaped pocket of the CtGH43 domain, which appears large enough to accommodate two more galactose units. Glu112 serves as the general base for substrate hydrolysis. Putative mechanism of substrate delivery via the CBM13 domain, overview
additional information
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two modes of substrate binding are observed at the beta site of the CtCBM13 domain, and one galactobiose molecule is found in an L shaped pocket of the CtGH43 domain, which appears large enough to accommodate two more galactose units. Glu112 serves as the general base for substrate hydrolysis. Putative mechanism of substrate delivery via the CBM13 domain, overview
additional information
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domain structures of BLLJ_1840 comprising the GH43 catalytic domain, bacterial Ig-like domain, CBM32, and the LPXTG cell wall anchor domain (Anchor), as well as the signal peptide
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