glycosyltransferase family 20 protein such as an alpha,alpha-trehalose-phosphate synthase (UDP-forming), which catalyzes the synthesis of alpha,alpha-1,1-trehalose-6-phosphate from glucose-6-phosphate using a uridine diphosphate-glucose donor
Glycosyltransferase family 20; Members of this family belong to glycosyl transferase family 20. ...
13-477
0e+00
Glycosyltransferase family 20; Members of this family belong to glycosyl transferase family 20. OtsA (Trehalose-6-phosphate synthase) is homologous to regions in the subunits of yeast trehalose-6-phosphate synthase/phosphate complex,.
:
Pssm-ID: 425972 [Multi-domain] Cd Length: 471 Bit Score: 778.00 E-value: 0e+00
Glycosyltransferase family 20; Members of this family belong to glycosyl transferase family 20. ...
13-477
0e+00
Glycosyltransferase family 20; Members of this family belong to glycosyl transferase family 20. OtsA (Trehalose-6-phosphate synthase) is homologous to regions in the subunits of yeast trehalose-6-phosphate synthase/phosphate complex,.
Pssm-ID: 425972 [Multi-domain] Cd Length: 471 Bit Score: 778.00 E-value: 0e+00
trehalose-6-phosphate synthase; Trehalose-6-Phosphate Synthase (TPS, EC 2.4.1.15) is a ...
14-475
0e+00
trehalose-6-phosphate synthase; Trehalose-6-Phosphate Synthase (TPS, EC 2.4.1.15) is a glycosyltransferase that catalyses the synthesis of alpha,alpha-1,1-trehalose-6-phosphate from glucose-6-phosphate using a UDP-glucose donor. It is a key enzyme in the trehalose synthesis pathway. Trehalose is a nonreducing disaccharide present in a wide variety of organisms and may serve as a source of energy and carbon. It is characterized most notably in insect, plant, and microbial cells. Its production is often associated with a variety of stress conditions, including desiccation, dehydration, heat, cold, and oxidation. This family represents the catalytic domain of the TPS. Some members of this domain family coexist with a C-terminal trehalose phosphatase domain.
Pssm-ID: 340820 [Multi-domain] Cd Length: 463 Bit Score: 739.01 E-value: 0e+00
alpha,alpha-trehalose-phosphate synthase [UDP-forming]; This enzyme catalyzes the key, ...
14-477
0e+00
alpha,alpha-trehalose-phosphate synthase [UDP-forming]; This enzyme catalyzes the key, penultimate step in biosynthesis of trehalose, a compatible solute made as an osmoprotectant in some species in all three domains of life. The gene symbol OtsA stands for osmotically regulated trehalose synthesis A. Trehalose helps protect against both osmotic and thermal stresses, and is made from two glucose subunits. This model excludes glucosylglycerol-phosphate synthase, an enzyme of an analogous osmoprotectant system in many cyanobacterial strains. This model does not identify archaeal examples, as they are more divergent than glucosylglycerol-phosphate synthase. Sequences that score in the gray zone between the trusted and noise cutoffs include a number of yeast multidomain proteins in which the N-terminal domain may be functionally equivalent to this family. The gray zone also includes the OtsA of Cornyebacterium glutamicum (and related species), shown to be responsible for synthesis of only trace amounts of trehalose while the majority is synthesized by the TreYZ pathway; the significance of OtsA in this species is unclear (see Wolf, et al., ). [Cellular processes, Adaptations to atypical conditions]
Pssm-ID: 274112 Cd Length: 456 Bit Score: 736.00 E-value: 0e+00
Glycosyltransferase family 20; Members of this family belong to glycosyl transferase family 20. ...
13-477
0e+00
Glycosyltransferase family 20; Members of this family belong to glycosyl transferase family 20. OtsA (Trehalose-6-phosphate synthase) is homologous to regions in the subunits of yeast trehalose-6-phosphate synthase/phosphate complex,.
Pssm-ID: 425972 [Multi-domain] Cd Length: 471 Bit Score: 778.00 E-value: 0e+00
trehalose-6-phosphate synthase; Trehalose-6-Phosphate Synthase (TPS, EC 2.4.1.15) is a ...
14-475
0e+00
trehalose-6-phosphate synthase; Trehalose-6-Phosphate Synthase (TPS, EC 2.4.1.15) is a glycosyltransferase that catalyses the synthesis of alpha,alpha-1,1-trehalose-6-phosphate from glucose-6-phosphate using a UDP-glucose donor. It is a key enzyme in the trehalose synthesis pathway. Trehalose is a nonreducing disaccharide present in a wide variety of organisms and may serve as a source of energy and carbon. It is characterized most notably in insect, plant, and microbial cells. Its production is often associated with a variety of stress conditions, including desiccation, dehydration, heat, cold, and oxidation. This family represents the catalytic domain of the TPS. Some members of this domain family coexist with a C-terminal trehalose phosphatase domain.
Pssm-ID: 340820 [Multi-domain] Cd Length: 463 Bit Score: 739.01 E-value: 0e+00
alpha,alpha-trehalose-phosphate synthase [UDP-forming]; This enzyme catalyzes the key, ...
14-477
0e+00
alpha,alpha-trehalose-phosphate synthase [UDP-forming]; This enzyme catalyzes the key, penultimate step in biosynthesis of trehalose, a compatible solute made as an osmoprotectant in some species in all three domains of life. The gene symbol OtsA stands for osmotically regulated trehalose synthesis A. Trehalose helps protect against both osmotic and thermal stresses, and is made from two glucose subunits. This model excludes glucosylglycerol-phosphate synthase, an enzyme of an analogous osmoprotectant system in many cyanobacterial strains. This model does not identify archaeal examples, as they are more divergent than glucosylglycerol-phosphate synthase. Sequences that score in the gray zone between the trusted and noise cutoffs include a number of yeast multidomain proteins in which the N-terminal domain may be functionally equivalent to this family. The gray zone also includes the OtsA of Cornyebacterium glutamicum (and related species), shown to be responsible for synthesis of only trace amounts of trehalose while the majority is synthesized by the TreYZ pathway; the significance of OtsA in this species is unclear (see Wolf, et al., ). [Cellular processes, Adaptations to atypical conditions]
Pssm-ID: 274112 Cd Length: 456 Bit Score: 736.00 E-value: 0e+00
phosphatidyl-myo-inositol mannosyltransferase; This family is most closely related to the GT4 ...
108-449
4.91e-12
phosphatidyl-myo-inositol mannosyltransferase; This family is most closely related to the GT4 family of glycosyltransferases and named after PimA in Propionibacterium freudenreichii, which is involved in the biosynthesis of phosphatidyl-myo-inositol mannosides (PIM) which are early precursors in the biosynthesis of lipomannans (LM) and lipoarabinomannans (LAM), and catalyzes the addition of a mannosyl residue from GDP-D-mannose (GDP-Man) to the position 2 of the carrier lipid phosphatidyl-myo-inositol (PI) to generate a phosphatidyl-myo-inositol bearing an alpha-1,2-linked mannose residue (PIM1). Glycosyltransferases catalyze the transfer of sugar moieties from activated donor molecules to specific acceptor molecules, forming glycosidic bonds. The acceptor molecule can be a lipid, a protein, a heterocyclic compound, or another carbohydrate residue. This group of glycosyltransferases is most closely related to the previously defined glycosyltransferase family 1 (GT1). The members of this family may transfer UDP, ADP, GDP, or CMP linked sugars. The diverse enzymatic activities among members of this family reflect a wide range of biological functions. The protein structure available for this family has the GTB topology, one of the two protein topologies observed for nucleotide-sugar-dependent glycosyltransferases. GTB proteins have distinct N- and C- terminal domains each containing a typical Rossmann fold. The two domains have high structural homology despite minimal sequence homology. The large cleft that separates the two domains includes the catalytic center and permits a high degree of flexibility. The members of this family are found mainly in certain bacteria and archaea.
Pssm-ID: 340831 [Multi-domain] Cd Length: 366 Bit Score: 67.56 E-value: 4.91e-12
Shigella dysenteriae WbnK and similar proteins; This family is most closely related to the GT4 ...
251-451
1.85e-04
Shigella dysenteriae WbnK and similar proteins; This family is most closely related to the GT4 family of glycosyltransferases. WbnK in Shigella dysenteriae has been shown to be involved in the type 7 O-antigen biosynthesis.
Pssm-ID: 340836 [Multi-domain] Cd Length: 362 Bit Score: 43.84 E-value: 1.85e-04
sucrose-phosphate synthase and similar proteins; This family is most closely related to the ...
220-448
3.44e-04
sucrose-phosphate synthase and similar proteins; This family is most closely related to the GT4 family of glycosyltransferases. The sucrose-phosphate synthases in this family may be unique to plants and photosynthetic bacteria. This enzyme catalyzes the synthesis of sucrose 6-phosphate from fructose 6-phosphate and uridine 5'-diphosphate-glucose, a key regulatory step of sucrose metabolism. The activity of this enzyme is regulated by phosphorylation and moderated by the concentration of various metabolites and light.
Pssm-ID: 340830 [Multi-domain] Cd Length: 398 Bit Score: 43.00 E-value: 3.44e-04
Vibrio cholerae WavL and similar sequences; This family is most closely related to the GT4 ...
238-449
6.77e-04
Vibrio cholerae WavL and similar sequences; This family is most closely related to the GT4 family of glycosyltransferases. WavL in Vibrio cholerae has been shown to be involved in the biosynthesis of the lipopolysaccharide core.
Pssm-ID: 340846 [Multi-domain] Cd Length: 345 Bit Score: 41.96 E-value: 6.77e-04
Glycosyl transferases group 1; Mutations in this domain of Swiss:P37287 lead to disease ...
281-456
1.24e-03
Glycosyl transferases group 1; Mutations in this domain of Swiss:P37287 lead to disease (Paroxysmal Nocturnal haemoglobinuria). Members of this family transfer activated sugars to a variety of substrates, including glycogen, Fructose-6-phosphate and lipopolysaccharides. Members of this family transfer UDP, ADP, GDP or CMP linked sugars. The eukaryotic glycogen synthases may be distant members of this family.
Pssm-ID: 425737 [Multi-domain] Cd Length: 158 Bit Score: 39.56 E-value: 1.24e-03
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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