Peritrophic membrane chitin binding protein [Caenorhabditis elegans]
polysaccharide deacetylase family protein( domain architecture ID 79029)
metal-dependent polysaccharide deacetylase family protein, belonging to the carbohydrate esterase 4 (CE4) superfamily, may catalyze the N- or O-deacetylation of a substrate such as acetylated chitin, peptidoglycan, and acetylated xylan
List of domain hits
Name | Accession | Description | Interval | E-value | |||||
CE4_SF super family | cl15692 | Catalytic NodB homology domain of the carbohydrate esterase 4 superfamily; The carbohydrate ... |
55-317 | 4.58e-142 | |||||
Catalytic NodB homology domain of the carbohydrate esterase 4 superfamily; The carbohydrate esterase 4 (CE4) superfamily mainly includes chitin deacetylases (EC 3.5.1.41), bacterial peptidoglycan N-acetylglucosamine deacetylases (EC 3.5.1.-), and acetylxylan esterases (EC 3.1.1.72), which catalyze the N- or O-deacetylation of substrates such as acetylated chitin, peptidoglycan, and acetylated xylan, respectively. Members in this superfamily contain a NodB homology domain that adopts a deformed (beta/alpha)8 barrel fold, which encompasses a mononuclear metalloenzyme employing a conserved His-His-Asp zinc-binding triad, closely associated with the conserved catalytic base (aspartic acid) and acid (histidine) to carry out acid/base catalysis. The NodB homology domain of CE4 superfamily is remotely related to the 7-stranded beta/alpha barrel catalytic domain of the superfamily consisting of family 38 glycoside hydrolases (GH38), family 57 heat stable retaining glycoside hydrolases (GH57), lactam utilization protein LamB/YcsF family proteins, and YdjC-family proteins. The actual alignment was detected with superfamily member cd10974: Pssm-ID: 472828 Cd Length: 269 Bit Score: 404.03 E-value: 4.58e-142
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Name | Accession | Description | Interval | E-value | |||||
CE4_CDA_like_1 | cd10974 | Putative catalytic domain of chitin deacetylase-like proteins with additional chitin-binding ... |
55-317 | 4.58e-142 | |||||
Putative catalytic domain of chitin deacetylase-like proteins with additional chitin-binding peritrophin-A domain (ChBD) and/or a low-density lipoprotein receptor class A domain (LDLa); Chitin deacetylases (CDAs, EC 3.5.1.41) are secreted metalloproteins belonging to a family of extracellular chitin-modifying enzymes that catalyze the N-deacetylation of chitin, a beta-1,4-linked N-acetylglucosamine polymer, to form chitosan, a polymer of beta-(1,4)-linked d-glucosamine residues. CDAs have been isolated and characterized from various bacterial and fungal species and belong to the larger carbohydrate esterase 4 (CE4) superfamily. This family includes many CDA-like proteins mainly from insects, which contain a putative CDA-like catalytic domain similar to the catalytic NodB homology domain of CE4 esterases. In addition to the CDA-like domain, family members contain two additional domains, a chitin-binding peritrophin-A domain (ChBD) and a low-density lipoprotein receptor class A domain (LDLa), or have the ChBD domain but do not have the LDLa domain. Pssm-ID: 200596 Cd Length: 269 Bit Score: 404.03 E-value: 4.58e-142
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Polysacc_deac_1 | pfam01522 | Polysaccharide deacetylase; This domain is found in polysaccharide deacetylase. This family of ... |
55-147 | 4.98e-05 | |||||
Polysaccharide deacetylase; This domain is found in polysaccharide deacetylase. This family of polysaccharide deacetylases includes NodB (nodulation protein B from Rhizobium) which is a chitooligosaccharide deacetylase. It also includes chitin deacetylase from yeast, and endoxylanases which hydrolyses glucosidic bonds in xylan. Pssm-ID: 426305 [Multi-domain] Cd Length: 124 Bit Score: 42.60 E-value: 4.98e-05
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Name | Accession | Description | Interval | E-value | |||||
CE4_CDA_like_1 | cd10974 | Putative catalytic domain of chitin deacetylase-like proteins with additional chitin-binding ... |
55-317 | 4.58e-142 | |||||
Putative catalytic domain of chitin deacetylase-like proteins with additional chitin-binding peritrophin-A domain (ChBD) and/or a low-density lipoprotein receptor class A domain (LDLa); Chitin deacetylases (CDAs, EC 3.5.1.41) are secreted metalloproteins belonging to a family of extracellular chitin-modifying enzymes that catalyze the N-deacetylation of chitin, a beta-1,4-linked N-acetylglucosamine polymer, to form chitosan, a polymer of beta-(1,4)-linked d-glucosamine residues. CDAs have been isolated and characterized from various bacterial and fungal species and belong to the larger carbohydrate esterase 4 (CE4) superfamily. This family includes many CDA-like proteins mainly from insects, which contain a putative CDA-like catalytic domain similar to the catalytic NodB homology domain of CE4 esterases. In addition to the CDA-like domain, family members contain two additional domains, a chitin-binding peritrophin-A domain (ChBD) and a low-density lipoprotein receptor class A domain (LDLa), or have the ChBD domain but do not have the LDLa domain. Pssm-ID: 200596 Cd Length: 269 Bit Score: 404.03 E-value: 4.58e-142
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CE4_CDA_like_2 | cd10975 | Putative catalytic domain of chitin deacetylase-like proteins; Chitin deacetylases (CDAs, EC 3. ... |
55-317 | 3.88e-72 | |||||
Putative catalytic domain of chitin deacetylase-like proteins; Chitin deacetylases (CDAs, EC 3.5.1.41) are secreted metalloproteins belonging to a family of extracellular chitin-modifying enzymes that catalyze the N-deacetylation of chitin, a beta-1,4-linked N-acetylglucosamine polymer, to form chitosan, a polymer of beta-(1,4)-linked d-glucosamine residues. CDAs have been isolated and characterized from various bacterial and fungal species and belong to the larger carbohydrate esterase 4 (CE4) superfamily. This family includes many midgut-specific CDA-like proteins mainly from insects, such as Tribolium castaneum CDAs (TcCDA6-9). These proteins contain a putative CDA-like catalytic domain similar to the catalytic NodB homology domain of CE4 esterases. In addition to the CDA-like domain, some family members have an additional chitin-binding peritrophin-A domain (ChBD). Pssm-ID: 200597 Cd Length: 268 Bit Score: 226.04 E-value: 3.88e-72
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CE4_CDA_like | cd10919 | Putative catalytic domain of chitin deacetylase-like proteins from insects and similar ... |
55-317 | 3.80e-68 | |||||
Putative catalytic domain of chitin deacetylase-like proteins from insects and similar proteins; Chitin deacetylases (CDAs, EC 3.5.1.41) are secreted metalloproteins belonging to a family of extracellular chitin-modifying enzymes that catalyze the N-deacetylation of chitin, a beta-1,4-linked N-acetylglucosamine polymer, to form chitosan, a polymer of beta-(1,4)-linked d-glucosamine residues. CDAs have been isolated and characterized from various bacterial and fungal species and belong to the larger carbohydrate esterase family 4 (CE4). This family includes many CDA-like proteins, mainly from insects, which contain a putative CDA-like catalytic domain similar to the catalytic NodB homology domain of CE4 esterases. Some family members have an additional chitin binding domain (ChBD), or an additional low-density lipoprotein receptor class A domain (LDLa), or both. Due to the lack of some catalytically relevant residues, several insect CDA-like proteins are devoid of enzymatic activity and may simply bind to chitin and thus influence the mechanical or permeability properties of chitin-containing structures such as the cuticle or the peritrophic membrane. This family also includes many uncharacterized hypothetical proteins from bacteria, exhibiting high sequence similarity to insect CDA-like proteins. Pssm-ID: 200545 [Multi-domain] Cd Length: 273 Bit Score: 216.07 E-value: 3.80e-68
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CE4_CDA_like_3 | cd10976 | Putative catalytic domain of uncharacterized bacterial hypothetical proteins similar to insect ... |
107-314 | 1.26e-11 | |||||
Putative catalytic domain of uncharacterized bacterial hypothetical proteins similar to insect chitin deacetylase-like proteins; The family includes many uncharacterized bacterial hypothetical proteins that show high sequence similarity to insect chitin deacetylase-like proteins. Chitin deacetylases (CDAs, EC 3.5.1.41) are secreted metalloproteins belonging to a family of extracellular chitin-modifying enzymes that catalyze the N-deacetylation of chitin, a beta-1,4-linked N-acetylglucosamine polymer, to form chitosan, a polymer of beta-(1,4)-linked d-glucosamine residues. Pssm-ID: 200598 [Multi-domain] Cd Length: 299 Bit Score: 64.69 E-value: 1.26e-11
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Polysacc_deac_1 | pfam01522 | Polysaccharide deacetylase; This domain is found in polysaccharide deacetylase. This family of ... |
55-147 | 4.98e-05 | |||||
Polysaccharide deacetylase; This domain is found in polysaccharide deacetylase. This family of polysaccharide deacetylases includes NodB (nodulation protein B from Rhizobium) which is a chitooligosaccharide deacetylase. It also includes chitin deacetylase from yeast, and endoxylanases which hydrolyses glucosidic bonds in xylan. Pssm-ID: 426305 [Multi-domain] Cd Length: 124 Bit Score: 42.60 E-value: 4.98e-05
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CE4_NodB_like_6s_7s | cd10917 | Catalytic NodB homology domain of rhizobial NodB-like proteins; This family belongs to the ... |
58-137 | 2.18e-04 | |||||
Catalytic NodB homology domain of rhizobial NodB-like proteins; This family belongs to the large and functionally diverse carbohydrate esterase 4 (CE4) superfamily, whose members show strong sequence similarity with some variability due to their distinct carbohydrate substrates. It includes many rhizobial NodB chitooligosaccharide N-deacetylase (EC 3.5.1.-)-like proteins, mainly from bacteria and eukaryotes, such as chitin deacetylases (EC 3.5.1.41), bacterial peptidoglycan N-acetylglucosamine deacetylases (EC 3.5.1.-), and acetylxylan esterases (EC 3.1.1.72), which catalyze the N- or O-deacetylation of substrates such as acetylated chitin, peptidoglycan, and acetylated xylan. All members of this family contain a catalytic NodB homology domain with the same overall topology and a deformed (beta/alpha)8 barrel fold with 6- or 7 strands. Their catalytic activity is dependent on the presence of a divalent cation, preferably cobalt or zinc, and they employ a conserved His-His-Asp zinc-binding triad closely associated with the conserved catalytic base (aspartic acid) and acid (histidine) to carry out acid/base catalysis. Several family members show diversity both in metal ion specificities and in the residues that coordinate the metal. Pssm-ID: 213022 [Multi-domain] Cd Length: 171 Bit Score: 41.45 E-value: 2.18e-04
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CE4_GLA_like_6s | cd10967 | Putative catalytic NodB homology domain of gellan lyase and similar proteins; This family is ... |
57-147 | 3.44e-04 | |||||
Putative catalytic NodB homology domain of gellan lyase and similar proteins; This family is represented by the extracellular polysaccharide-degrading enzyme, gellan lyase (gellanase, EC 4.2.2.-), from Bacillus sp. The enzyme acts on gellan exolytically and releases a tetrasaccharide of glucuronyl-glucosyl-rhamnosyl-glucose with unsaturated glucuronic acid at the nonreducing terminus. The family also includes many uncharacterized prokaryotic polysaccharide deacetylases, which show high sequence similarity to Bacillus sp. gellan lyase. Although their biological functions remain unknown, all members of the family contain a conserved domain with a 6-stranded beta/alpha barrel, which is similar to the catalytic NodB homology domain of rhizobial NodB-like proteins, belonging to the larger carbohydrate esterase 4 (CE4) superfamily. Pssm-ID: 200589 [Multi-domain] Cd Length: 202 Bit Score: 41.21 E-value: 3.44e-04
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Blast search parameters | ||||
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