hopanoid biosynthesis associated glycosyl transferase protein HpnI; This family of genes ...
10-383
1.88e-148
hopanoid biosynthesis associated glycosyl transferase protein HpnI; This family of genes include a glycosyl transferase, group 2 domain (pfam00535) which are responsible, generally for the transfer of nucleotide-diphosphate sugars to substrates such as polysaccharides and lipids. The member of this clade from Acidithiobacillus ferrooxidans ATCC 23270 (AFE_0974) is found in the same locus as squalene-hopene cyclase (SHC, TIGR01507) and other genes associated with the biosynthesis of hopanoid natural products. Similarly, in Ralstonia eutropha JMP134 (Reut_B4902) this gene is adjacent to HpnAB, IspH and HpnH (TIGR03470), although SHC itself is elsewhere in the genome. Notably, this gene (here named HpnI) and three others form a conserved set (HpnIJKL) which occur in a subset of all genomes containing the SHC enzyme. This relationship was discerned using the method of partial phylogenetic profiling. This group includes Zymomonas mobilis, the organism where the initial hopanoid biosynthesis locus was described consisting of the genes HpnA-E and SHC (HpnF). Continuing past SHC are found a phosphorylase enzyme (ZMO0873, i.e. HpnG, TIGR03468) and another radical SAM enzyme (ZMO0874), HpnH. Although discontinuous in Z. mobilis, we continue the gene symbol sequence with HpnIJKL. Hopanoids are known to feature polar glycosyl head groups in many organisms.
The actual alignment was detected with superfamily member TIGR03472:
Pssm-ID: 132512 [Multi-domain] Cd Length: 373 Bit Score: 424.87 E-value: 1.88e-148
hopanoid biosynthesis associated glycosyl transferase protein HpnI; This family of genes ...
10-383
1.88e-148
hopanoid biosynthesis associated glycosyl transferase protein HpnI; This family of genes include a glycosyl transferase, group 2 domain (pfam00535) which are responsible, generally for the transfer of nucleotide-diphosphate sugars to substrates such as polysaccharides and lipids. The member of this clade from Acidithiobacillus ferrooxidans ATCC 23270 (AFE_0974) is found in the same locus as squalene-hopene cyclase (SHC, TIGR01507) and other genes associated with the biosynthesis of hopanoid natural products. Similarly, in Ralstonia eutropha JMP134 (Reut_B4902) this gene is adjacent to HpnAB, IspH and HpnH (TIGR03470), although SHC itself is elsewhere in the genome. Notably, this gene (here named HpnI) and three others form a conserved set (HpnIJKL) which occur in a subset of all genomes containing the SHC enzyme. This relationship was discerned using the method of partial phylogenetic profiling. This group includes Zymomonas mobilis, the organism where the initial hopanoid biosynthesis locus was described consisting of the genes HpnA-E and SHC (HpnF). Continuing past SHC are found a phosphorylase enzyme (ZMO0873, i.e. HpnG, TIGR03468) and another radical SAM enzyme (ZMO0874), HpnH. Although discontinuous in Z. mobilis, we continue the gene symbol sequence with HpnIJKL. Hopanoids are known to feature polar glycosyl head groups in many organisms.
Pssm-ID: 132512 [Multi-domain] Cd Length: 373 Bit Score: 424.87 E-value: 1.88e-148
Glucosylceramide synthase catalyzes the first glycosylation step of glycosphingolipid ...
46-276
3.32e-85
Glucosylceramide synthase catalyzes the first glycosylation step of glycosphingolipid synthesis; UDP-glucose:N-acylsphingosine D-glucosyltransferase (glucosylceramide synthase or ceramide glucosyltransferase) catalyzes the first glycosylation step of glycosphingolipid synthesis. Its product, glucosylceramide, serves as the core of more than 300 glycosphingolipids (GSL). GSLs are a group of membrane components that have the lipid portion embedded in the outer plasma membrane leaflet and the sugar chains extended to the outer environment. Several lines of evidence suggest the importance of GSLs in various cellular processes such as differentiation, adhesion, proliferation, and cell-cell recognition. In pathogenic fungus Cryptococcus neoformans, glucosylceramide serves as an antigen that elicits an antibody response in patients and it is essential for fungal growth in host extracellular environment.
Pssm-ID: 133012 [Multi-domain] Cd Length: 196 Bit Score: 257.14 E-value: 3.32e-85
hopanoid biosynthesis associated glycosyl transferase protein HpnI; This family of genes ...
10-383
1.88e-148
hopanoid biosynthesis associated glycosyl transferase protein HpnI; This family of genes include a glycosyl transferase, group 2 domain (pfam00535) which are responsible, generally for the transfer of nucleotide-diphosphate sugars to substrates such as polysaccharides and lipids. The member of this clade from Acidithiobacillus ferrooxidans ATCC 23270 (AFE_0974) is found in the same locus as squalene-hopene cyclase (SHC, TIGR01507) and other genes associated with the biosynthesis of hopanoid natural products. Similarly, in Ralstonia eutropha JMP134 (Reut_B4902) this gene is adjacent to HpnAB, IspH and HpnH (TIGR03470), although SHC itself is elsewhere in the genome. Notably, this gene (here named HpnI) and three others form a conserved set (HpnIJKL) which occur in a subset of all genomes containing the SHC enzyme. This relationship was discerned using the method of partial phylogenetic profiling. This group includes Zymomonas mobilis, the organism where the initial hopanoid biosynthesis locus was described consisting of the genes HpnA-E and SHC (HpnF). Continuing past SHC are found a phosphorylase enzyme (ZMO0873, i.e. HpnG, TIGR03468) and another radical SAM enzyme (ZMO0874), HpnH. Although discontinuous in Z. mobilis, we continue the gene symbol sequence with HpnIJKL. Hopanoids are known to feature polar glycosyl head groups in many organisms.
Pssm-ID: 132512 [Multi-domain] Cd Length: 373 Bit Score: 424.87 E-value: 1.88e-148
Glucosylceramide synthase catalyzes the first glycosylation step of glycosphingolipid ...
46-276
3.32e-85
Glucosylceramide synthase catalyzes the first glycosylation step of glycosphingolipid synthesis; UDP-glucose:N-acylsphingosine D-glucosyltransferase (glucosylceramide synthase or ceramide glucosyltransferase) catalyzes the first glycosylation step of glycosphingolipid synthesis. Its product, glucosylceramide, serves as the core of more than 300 glycosphingolipids (GSL). GSLs are a group of membrane components that have the lipid portion embedded in the outer plasma membrane leaflet and the sugar chains extended to the outer environment. Several lines of evidence suggest the importance of GSLs in various cellular processes such as differentiation, adhesion, proliferation, and cell-cell recognition. In pathogenic fungus Cryptococcus neoformans, glucosylceramide serves as an antigen that elicits an antibody response in patients and it is essential for fungal growth in host extracellular environment.
Pssm-ID: 133012 [Multi-domain] Cd Length: 196 Bit Score: 257.14 E-value: 3.32e-85
Glycosyltransferase like family 2; Members of this family of prokaryotic proteins include ...
47-275
5.10e-21
Glycosyltransferase like family 2; Members of this family of prokaryotic proteins include putative glucosyltransferase, which are involved in bacterial capsule biosynthesis.
Pssm-ID: 433372 [Multi-domain] Cd Length: 230 Bit Score: 90.89 E-value: 5.10e-21
Glycosyltransferase family A (GT-A) includes diverse families of glycosyl transferases with a ...
49-188
4.38e-10
Glycosyltransferase family A (GT-A) includes diverse families of glycosyl transferases with a common GT-A type structural fold; Glycosyltransferases (GTs) are enzymes that synthesize oligosaccharides, polysaccharides, and glycoconjugates by transferring the sugar moiety from an activated nucleotide-sugar donor to an acceptor molecule, which may be a growing oligosaccharide, a lipid, or a protein. Based on the stereochemistry of the donor and acceptor molecules, GTs are classified as either retaining or inverting enzymes. To date, all GT structures adopt one of two possible folds, termed GT-A fold and GT-B fold. This hierarchy includes diverse families of glycosyl transferases with a common GT-A type structural fold, which has two tightly associated beta/alpha/beta domains that tend to form a continuous central sheet of at least eight beta-strands. The majority of the proteins in this superfamily are Glycosyltransferase family 2 (GT-2) proteins. But it also includes families GT-43, GT-6, GT-8, GT13 and GT-7; which are evolutionarily related to GT-2 and share structure similarities.
Pssm-ID: 132997 [Multi-domain] Cd Length: 156 Bit Score: 57.90 E-value: 4.38e-10
Glycosyl transferase family group 2; Members of this family of prokaryotic proteins include ...
134-304
1.17e-09
Glycosyl transferase family group 2; Members of this family of prokaryotic proteins include putative glucosyltransferases, which are involved in bacterial capsule biosynthesis.
Pssm-ID: 433365 [Multi-domain] Cd Length: 192 Bit Score: 57.35 E-value: 1.17e-09
CESA_like_1 is a member of the cellulose synthase (CESA) superfamily; This is a subfamily of ...
28-175
3.99e-08
CESA_like_1 is a member of the cellulose synthase (CESA) superfamily; This is a subfamily of cellulose synthase (CESA) superfamily. CESA superfamily includes a wide variety of glycosyltransferase family 2 enzymes that share the common characteristic of catalyzing the elongation of polysaccharide chains. The members of the superfamily include cellulose synthase catalytic subunit, chitin synthase, glucan biosynthesis protein and other families of CESA-like proteins.
Pssm-ID: 133061 [Multi-domain] Cd Length: 251 Bit Score: 53.74 E-value: 3.99e-08
CESA_like is the cellulose synthase superfamily; The cellulose synthase (CESA) superfamily ...
49-232
4.05e-08
CESA_like is the cellulose synthase superfamily; The cellulose synthase (CESA) superfamily includes a wide variety of glycosyltransferase family 2 enzymes that share the common characteristic of catalyzing the elongation of polysaccharide chains. The members include cellulose synthase catalytic subunit, chitin synthase, glucan biosynthesis protein and other families of CESA-like proteins. Cellulose synthase catalyzes the polymerization reaction of cellulose, an aggregate of unbranched polymers of beta-1,4-linked glucose residues in plants, most algae, some bacteria and fungi, and even some animals. In bacteria, algae and lower eukaryotes, there is a second unrelated type of cellulose synthase (Type II), which produces acylated cellulose, a derivative of cellulose. Chitin synthase catalyzes the incorporation of GlcNAc from substrate UDP-GlcNAc into chitin, which is a linear homopolymer of beta-(1,4)-linked GlcNAc residues and Glucan Biosynthesis protein catalyzes the elongation of beta-1,2 polyglucose chains of Glucan.
Pssm-ID: 133045 [Multi-domain] Cd Length: 180 Bit Score: 52.61 E-value: 4.05e-08
Glycosyl transferase family 2; Diverse family, transferring sugar from UDP-glucose, ...
48-232
3.24e-07
Glycosyl transferase family 2; Diverse family, transferring sugar from UDP-glucose, UDP-N-acetyl- galactosamine, GDP-mannose or CDP-abequose, to a range of substrates including cellulose, dolichol phosphate and teichoic acids.
Pssm-ID: 425738 [Multi-domain] Cd Length: 166 Bit Score: 49.70 E-value: 3.24e-07
Hyaluronan synthases catalyze polymerization of hyaluronan; Hyaluronan synthases (HASs) are ...
47-185
1.38e-05
Hyaluronan synthases catalyze polymerization of hyaluronan; Hyaluronan synthases (HASs) are bi-functional glycosyltransferases that catalyze polymerization of hyaluronan. HASs transfer both GlcUA and GlcNAc in beta-(1,3) and beta-(1,4) linkages, respectively to the hyaluronan chain using UDP-GlcNAc and UDP-GlcUA as substrates. HA is made as a free glycan, not attached to a protein or lipid. HASs do not need a primer for HA synthesis; they initiate HA biosynthesis de novo with only UDP-GlcNAc, UDP-GlcUA, and Mg2+. Hyaluronan (HA) is a linear heteropolysaccharide composed of (1-3)-linked beta-D-GlcUA-beta-D-GlcNAc disaccharide repeats. It can be found in vertebrates and a few microbes and is typically on the cell surface or in the extracellular space, but is also found inside mammalian cells. Hyaluronan has several physiochemical and biological functions such as space filling, lubrication, and providing a hydrated matrix through which cells can migrate.
Pssm-ID: 133056 [Multi-domain] Cd Length: 235 Bit Score: 46.09 E-value: 1.38e-05
CESA_CelA_like are involved in the elongation of the glucan chain of cellulose; Family of ...
118-274
1.50e-04
CESA_CelA_like are involved in the elongation of the glucan chain of cellulose; Family of proteins related to Agrobacterium tumefaciens CelA and Gluconacetobacter xylinus BscA. These proteins are involved in the elongation of the glucan chain of cellulose, an aggregate of unbranched polymers of beta-1,4-linked glucose residues. They are putative catalytic subunit of cellulose synthase, which is a glycosyltransferase using UDP-glucose as the substrate. The catalytic subunit is an integral membrane protein with 6 transmembrane segments and it is postulated that the protein is anchored in the membrane at the N-terminal end.
Pssm-ID: 133043 [Multi-domain] Cd Length: 234 Bit Score: 42.94 E-value: 1.50e-04
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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The table lists conserved domains identified on the query sequence. Click on the plus sign (+) on the left to display full descriptions, alignments, and scores.
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(labeled illustration) Standard Display shows only the best scoring domain model from each source, in each hit category listed below for each region on the query sequence.
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