Type 1 glutamine amidotransferase (GATase1)-like domain; Type 1 glutamine amidotransferase ...
7-722
0e+00
Type 1 glutamine amidotransferase (GATase1)-like domain; Type 1 glutamine amidotransferase (GATase1)-like domain. This group contains proteins similar to Class I glutamine amidotransferases, the intracellular PH1704 from Pyrococcus horikoshii, the C-terminal of the large catalase: Escherichia coli HP-II, Sinorhizobium meliloti Rm1021 ThuA, the A4 beta-galactosidase middle domain and peptidase E. The majority of proteins in this group have a reactive Cys found in the sharp turn between a beta strand and an alpha helix termed the nucleophile elbow. For Class I glutamine amidotransferases proteins which transfer ammonia from the amide side chain of glutamine to an acceptor substrate, this Cys forms a Cys-His-Glu catalytic triad in the active site. Glutamine amidotransferases activity can be found in a range of biosynthetic enzymes included in this cd: glutamine amidotransferase, formylglycinamide ribonucleotide, GMP synthetase, anthranilate synthase component II, glutamine-dependent carbamoyl phosphate synthase (CPSase), cytidine triphosphate synthetase, gamma-glutamyl hydrolase, imidazole glycerol phosphate synthase and, cobyric acid synthase. For Pyrococcus horikoshii PH1704, the Cys of the nucleophile elbow together with a different His and, a Glu from an adjacent monomer form a catalytic triad different from the typical GATase1 triad. Peptidase E is believed to be a serine peptidase having a Ser-His-Glu catalytic triad which differs from the Cys-His-Glu catalytic triad of typical GATase1 domains, by having a Ser in place of the reactive Cys at the nucleophile elbow. The E. coli HP-II C-terminal domain, S. meliloti Rm1021 ThuA and the A4 beta-galactosidase middle domain lack the catalytic triad typical GATaseI domains. GATase1-like domains can occur either as single polypeptides, as in Class I glutamine amidotransferases, or as domains in a much larger multifunctional synthase protein, such as CPSase. Peptidase E has a circular permutation in the common core of a typical GTAse1 domain.
The actual alignment was detected with superfamily member TIGR02336:
Pssm-ID: 469582 [Multi-domain] Cd Length: 719 Bit Score: 965.90 E-value: 0e+00
1,3-beta-galactosyl-N-acetylhexosamine phosphorylase; Members of this family are found in ...
7-722
0e+00
1,3-beta-galactosyl-N-acetylhexosamine phosphorylase; Members of this family are found in phylogenetically diverse bacteria, including Clostridium perfringens (in the Firmicutes), Bifidobacterium longum and Propionibacterium acnes (in the Actinobacteria), and Vibrio vulnificus (in the Proteobacteria), most of which occur as mammalian pathogens or commensals. The nominal activity, 1,3-beta-galactosyl-N-acetylhexosamine phosphorylase (EC 2.4.1.211), varies somewhat from instance to instance in relative rates for closely related substrates. [Energy metabolism, Biosynthesis and degradation of polysaccharides]
Pssm-ID: 213701 [Multi-domain] Cd Length: 719 Bit Score: 965.90 E-value: 0e+00
Lacto-N-biose phosphorylase N-terminal TIM barrel domain; The gene which codes for this ...
7-439
0e+00
Lacto-N-biose phosphorylase N-terminal TIM barrel domain; The gene which codes for this protein in gut-bacteria is located in a novel putative operon for galactose metabolism. The protein appears to be a carbohydrate-processing phosphorolytic enzyme (EC:2.4.1.211), unlike either glycoside hydrolases or glycoside lyase. Intestinal colonization by bifidobacteria is important for human health, especially in pediatrics, because colonization seems to prevent infection by some pathogenic bacteria that cause diarrhoea or other illnesses. The operon seems to be involved in intestinal colonization by bifidobacteria mediated by metabolism of mucin sugars. In addition, it may also resolve the question of the nature of the bifidus factor in human milk as the lacto-N-biose structure found in milk oligosaccharides.
Pssm-ID: 462820 Cd Length: 434 Bit Score: 733.29 E-value: 0e+00
1,3-beta-galactosyl-N-acetylhexosamine phosphorylase; Members of this family are found in ...
7-722
0e+00
1,3-beta-galactosyl-N-acetylhexosamine phosphorylase; Members of this family are found in phylogenetically diverse bacteria, including Clostridium perfringens (in the Firmicutes), Bifidobacterium longum and Propionibacterium acnes (in the Actinobacteria), and Vibrio vulnificus (in the Proteobacteria), most of which occur as mammalian pathogens or commensals. The nominal activity, 1,3-beta-galactosyl-N-acetylhexosamine phosphorylase (EC 2.4.1.211), varies somewhat from instance to instance in relative rates for closely related substrates. [Energy metabolism, Biosynthesis and degradation of polysaccharides]
Pssm-ID: 213701 [Multi-domain] Cd Length: 719 Bit Score: 965.90 E-value: 0e+00
Lacto-N-biose phosphorylase N-terminal TIM barrel domain; The gene which codes for this ...
7-439
0e+00
Lacto-N-biose phosphorylase N-terminal TIM barrel domain; The gene which codes for this protein in gut-bacteria is located in a novel putative operon for galactose metabolism. The protein appears to be a carbohydrate-processing phosphorolytic enzyme (EC:2.4.1.211), unlike either glycoside hydrolases or glycoside lyase. Intestinal colonization by bifidobacteria is important for human health, especially in pediatrics, because colonization seems to prevent infection by some pathogenic bacteria that cause diarrhoea or other illnesses. The operon seems to be involved in intestinal colonization by bifidobacteria mediated by metabolism of mucin sugars. In addition, it may also resolve the question of the nature of the bifidus factor in human milk as the lacto-N-biose structure found in milk oligosaccharides.
Pssm-ID: 462820 Cd Length: 434 Bit Score: 733.29 E-value: 0e+00
Lacto-N-biose phosphorylase central domain; The gene which codes for this protein in ...
443-664
2.26e-110
Lacto-N-biose phosphorylase central domain; The gene which codes for this protein in gut-bacteria is located in a novel putative operon for galactose metabolism. The protein appears to be a carbohydrate-processing phosphorolytic enzyme (EC:2.4.1.211), unlike either glycoside hydrolases or glycoside lyase. Intestinal colonization by bifidobacteria is important for human health, especially in pediatrics, because colonization seems to prevent infection by some pathogenic bacteria that cause diarrhoea or other illnesses. The operon seems to be involved in intestinal colonization by bifidobacteria mediated by metabolism of mucin sugars. In addition, it may also resolve the question of the nature of the bifidus factor in human milk as the lacto-N-biose structure found in milk oligosaccharides.
Pssm-ID: 465409 Cd Length: 221 Bit Score: 333.43 E-value: 2.26e-110
Lacto-N-biose phosphorylase C-terminal domain; The gene which codes for this protein in ...
669-721
1.68e-14
Lacto-N-biose phosphorylase C-terminal domain; The gene which codes for this protein in gut-bacteria is located in a novel putative operon for galactose metabolism. The protein appears to be a carbohydrate-processing phosphorolytic enzyme (EC:2.4.1.211), unlike either glycoside hydrolases or glycoside lyase. Intestinal colonization by bifidobacteria is important for human health, especially in pediatrics, because colonization seems to prevent infection by some pathogenic bacteria that cause diarrhoea or other illnesses. The operon seems to be involved in intestinal colonization by bifidobacteria mediated by metabolism of mucin sugars. In addition, it may also resolve the question of the nature of the bifidus factor in human milk as the lacto-N-biose structure found in milk oligosaccharides.
Pssm-ID: 465410 Cd Length: 53 Bit Score: 68.04 E-value: 1.68e-14
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.
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