nucleoside phosphorylase similar to Trypanosoma brucei uridine phosphorylase that catalyzes the reversible phosphorolysis of uracil ribosides and analogous compounds to their respective nucleobases and ribose 1-phosphate
uridine phosphorylases similar to Trypanosoma brucei UP; Uridine phosphorylase (UP) catalyzes ...
9-288
5.01e-162
uridine phosphorylases similar to Trypanosoma brucei UP; Uridine phosphorylase (UP) catalyzes the reversible phosphorolysis of uracil ribosides and analogous compounds to their respective nucleobases and ribose 1-phosphate. Trypanosoma brucei UP has a high specificity for uracil-containing (deoxy)nucleosides, and may function as a dimer. This subfamily belongs to the nucleoside phosphorylase-I (NP-I) family, whose members accept a range of purine nucleosides as well as the pyrimidine nucleoside uridine. The NP-1 family includes phosphorolytic nucleosidases, such as purine nucleoside phosphorylase (PNPs, EC. 2.4.2.1), uridine phosphorylase (UP, EC 2.4.2.3), and 5'-deoxy-5'-methylthioadenosine phosphorylase (MTAP, EC 2.4.2.28), and hydrolytic nucleosidases, such as AMP nucleosidase (AMN, EC 3.2.2.4), and 5'-methylthioadenosine/S-adenosylhomocysteine (MTA/SAH) nucleosidase (MTAN, EC 3.2.2.16). The NP-I family is distinct from nucleoside phosphorylase-II, which belongs to a different structural family.
:
Pssm-ID: 350155 Cd Length: 282 Bit Score: 451.54 E-value: 5.01e-162
uridine phosphorylases similar to Trypanosoma brucei UP; Uridine phosphorylase (UP) catalyzes ...
9-288
5.01e-162
uridine phosphorylases similar to Trypanosoma brucei UP; Uridine phosphorylase (UP) catalyzes the reversible phosphorolysis of uracil ribosides and analogous compounds to their respective nucleobases and ribose 1-phosphate. Trypanosoma brucei UP has a high specificity for uracil-containing (deoxy)nucleosides, and may function as a dimer. This subfamily belongs to the nucleoside phosphorylase-I (NP-I) family, whose members accept a range of purine nucleosides as well as the pyrimidine nucleoside uridine. The NP-1 family includes phosphorolytic nucleosidases, such as purine nucleoside phosphorylase (PNPs, EC. 2.4.2.1), uridine phosphorylase (UP, EC 2.4.2.3), and 5'-deoxy-5'-methylthioadenosine phosphorylase (MTAP, EC 2.4.2.28), and hydrolytic nucleosidases, such as AMP nucleosidase (AMN, EC 3.2.2.4), and 5'-methylthioadenosine/S-adenosylhomocysteine (MTA/SAH) nucleosidase (MTAN, EC 3.2.2.16). The NP-I family is distinct from nucleoside phosphorylase-II, which belongs to a different structural family.
Pssm-ID: 350155 Cd Length: 282 Bit Score: 451.54 E-value: 5.01e-162
uridine phosphorylase; This model represents a family of bacterial and archaeal uridine ...
18-272
4.84e-23
uridine phosphorylase; This model represents a family of bacterial and archaeal uridine phosphorylases unrelated to the mammalian enzymes of the same name. The E. coli, Salmonella and Klebsiella genes have been characterized. Sequences from Clostridium, Streptomyces, Treponema, Halobacterium and Pyrobaculum were included above trusted on the basis of sequence homology and a PAM-based neighbor-joining tree. A clade including second sequences from Halobacterium and Vibrio was somewhat more distantly related and may represent a slightly different substrate specificity - these were placed below the noise cutoff. More distantly related is a clade of archaeal sequences which as related to the DeoD family of inosine phosphorylases (TIGR00107) as they are to these uridine phosphorylases. This clade includes a characterized protein from Sulfolobus solfataricus which has been mis-named as a methylthioadenosine phosphorylase, but which acts on inosine and guanosine - it is unclear whether uridine has been evaluated as a substrate. [Purines, pyrimidines, nucleosides, and nucleotides, Salvage of nucleosides and nucleotides]
Pssm-ID: 130779 Cd Length: 245 Bit Score: 94.96 E-value: 4.84e-23
Phosphorylase superfamily; Members of this family include: purine nucleoside phosphorylase ...
32-263
3.58e-17
Phosphorylase superfamily; Members of this family include: purine nucleoside phosphorylase (PNP) Uridine phosphorylase (UdRPase) 5'-methylthioadenosine phosphorylase (MTA phosphorylase)
Pssm-ID: 426013 Cd Length: 233 Bit Score: 78.54 E-value: 3.58e-17
uridine phosphorylases similar to Trypanosoma brucei UP; Uridine phosphorylase (UP) catalyzes ...
9-288
5.01e-162
uridine phosphorylases similar to Trypanosoma brucei UP; Uridine phosphorylase (UP) catalyzes the reversible phosphorolysis of uracil ribosides and analogous compounds to their respective nucleobases and ribose 1-phosphate. Trypanosoma brucei UP has a high specificity for uracil-containing (deoxy)nucleosides, and may function as a dimer. This subfamily belongs to the nucleoside phosphorylase-I (NP-I) family, whose members accept a range of purine nucleosides as well as the pyrimidine nucleoside uridine. The NP-1 family includes phosphorolytic nucleosidases, such as purine nucleoside phosphorylase (PNPs, EC. 2.4.2.1), uridine phosphorylase (UP, EC 2.4.2.3), and 5'-deoxy-5'-methylthioadenosine phosphorylase (MTAP, EC 2.4.2.28), and hydrolytic nucleosidases, such as AMP nucleosidase (AMN, EC 3.2.2.4), and 5'-methylthioadenosine/S-adenosylhomocysteine (MTA/SAH) nucleosidase (MTAN, EC 3.2.2.16). The NP-I family is distinct from nucleoside phosphorylase-II, which belongs to a different structural family.
Pssm-ID: 350155 Cd Length: 282 Bit Score: 451.54 E-value: 5.01e-162
uridine phosphorylases similar to Escherichia coli Udp and related phosphorylases; Uridine ...
19-285
3.87e-43
uridine phosphorylases similar to Escherichia coli Udp and related phosphorylases; Uridine phosphorylase (UP) is specific for pyrimidines, and is involved in pyrimidine salvage and in the maintenance of uridine homeostasis. In addition to E. coli Udp, this subfamily includes Shewanella oneidensis MR-1 UP and Plasmodium falciparum purine nucleoside phosphorylase (PfPNP). PfPNP is an outlier in terms of genetic distance from the other families of PNPs. PfPNP is catalytically active for inosine and guanosine, and in addition, has a weak UP activity. This subfamily belongs to the nucleoside phosphorylase-I (NP-I) family, whose members accept a range of purine nucleosides as well as the pyrimidine nucleoside uridine. The NP-1 family includes phosphorolytic nucleosidases, such as purine nucleoside phosphorylase (PNPs, EC. 2.4.2.1), uridine phosphorylase (UP, EC 2.4.2.3), and 5'-deoxy-5'-methylthioadenosine phosphorylase (MTAP, EC 2.4.2.28), and hydrolytic nucleosidases, such as AMP nucleosidase (AMN, EC 3.2.2.4), and 5'-methylthioadenosine/S-adenosylhomocysteine (MTA/SAH) nucleosidase (MTAN, EC 3.2.2.16). The NP-I family is distinct from nucleoside phosphorylase-II, which belongs to a different structural family.
Pssm-ID: 350167 Cd Length: 239 Bit Score: 147.59 E-value: 3.87e-43
uridine phosphorylase; This model represents a family of bacterial and archaeal uridine ...
18-272
4.84e-23
uridine phosphorylase; This model represents a family of bacterial and archaeal uridine phosphorylases unrelated to the mammalian enzymes of the same name. The E. coli, Salmonella and Klebsiella genes have been characterized. Sequences from Clostridium, Streptomyces, Treponema, Halobacterium and Pyrobaculum were included above trusted on the basis of sequence homology and a PAM-based neighbor-joining tree. A clade including second sequences from Halobacterium and Vibrio was somewhat more distantly related and may represent a slightly different substrate specificity - these were placed below the noise cutoff. More distantly related is a clade of archaeal sequences which as related to the DeoD family of inosine phosphorylases (TIGR00107) as they are to these uridine phosphorylases. This clade includes a characterized protein from Sulfolobus solfataricus which has been mis-named as a methylthioadenosine phosphorylase, but which acts on inosine and guanosine - it is unclear whether uridine has been evaluated as a substrate. [Purines, pyrimidines, nucleosides, and nucleotides, Salvage of nucleosides and nucleotides]
Pssm-ID: 130779 Cd Length: 245 Bit Score: 94.96 E-value: 4.84e-23
nucleoside phosphorylase-I family; The nucleoside phosphorylase-I family members accept a ...
32-290
8.03e-20
nucleoside phosphorylase-I family; The nucleoside phosphorylase-I family members accept a range of purine nucleosides as well as the pyrimidine nucleoside uridine. The NP-1 family includes phosphorolytic nucleosidases such as purine nucleoside phosphorylase (PNP, EC. 2.4.2.1), uridine phosphorylase (UP, EC 2.4.2.3), and 5'-deoxy-5'-methylthioadenosine phosphorylase (MTAP, EC 2.4.2.28), and hydrolytic nucleosidases such as AMP nucleosidase (AMN, EC 3.2.2.4) and 5'-methylthioadenosine/S-adenosylhomocysteine (MTA/SAH) nucleosidase (MTAN, EC 3.2.2.16). Members of this family display different physiologically relevant quaternary structures: hexameric (trimer-of-dimers arrangement of Shewanella oneidensis MR-1 UP); homotrimeric (human PNP and Escherichia coli PNPII or XapA); hexameric (with some evidence for co-existence of a trimeric form) such as E. coli PNPI (DeoD); or homodimeric such as human and Trypanosoma brucei UP. The NP-I family is distinct from nucleoside phosphorylase-II, which belongs to a different structural family.
Pssm-ID: 350156 Cd Length: 216 Bit Score: 85.42 E-value: 8.03e-20
nucleoside phosphorylases similar to Toxoplasma gondii uridine phosphorylase; This subfamily ...
32-281
1.94e-17
nucleoside phosphorylases similar to Toxoplasma gondii uridine phosphorylase; This subfamily is composed of mostly uncharacterized proteins with similarity to Toxoplasma gondii uridine phosphorylase (TgUPase). Toxoplasma gondii appears to have a single non-specific uridine phosphorylase which catalyzes the reversible phosphorolysis of uridine, deoxyuridine and thymidine, rather than the two distinct enzymes of mammalian cells: uridine phosphorylase (nucleoside phosphorylase-I family) and thymidine phosphorylase (nucleoside phosphorylase-II family). TgUPase is a potential target for intervention against toxoplasmosis. It belongs to the nucleoside phosphorylase-I (NP-I) family, whose members accept a range of purine nucleosides as well as the pyrimidine nucleoside uridine. The NP-1 family includes phosphorolytic nucleosidases, such as purine nucleoside phosphorylase (PNPs, EC. 2.4.2.1), uridine phosphorylase (UP, EC 2.4.2.3), and 5'-deoxy-5'-methylthioadenosine phosphorylase (MTAP, EC 2.4.2.28), and hydrolytic nucleosidases, such as AMP nucleosidase (AMN, EC 3.2.2.4), and 5'-methylthioadenosine/S-adenosylhomocysteine (MTA/SAH) nucleosidase (MTAN, EC 3.2.2.16). The NP-I family is distinct from nucleoside phosphorylase-II, which belongs to a different structural family.
Pssm-ID: 350169 Cd Length: 255 Bit Score: 79.93 E-value: 1.94e-17
Phosphorylase superfamily; Members of this family include: purine nucleoside phosphorylase ...
32-263
3.58e-17
Phosphorylase superfamily; Members of this family include: purine nucleoside phosphorylase (PNP) Uridine phosphorylase (UdRPase) 5'-methylthioadenosine phosphorylase (MTA phosphorylase)
Pssm-ID: 426013 Cd Length: 233 Bit Score: 78.54 E-value: 3.58e-17
purine nucleoside phosphorylases similar to Escherichia coli PNP-I (DeoD) and Trichomonas ...
20-290
4.18e-14
purine nucleoside phosphorylases similar to Escherichia coli PNP-I (DeoD) and Trichomonas vaginalis PNP; Escherichia coli purine nucleoside phosphorylase (PNP)-I (or DeoD) accepts both 6-oxo and 6-amino purine nucleosides as substrates. Trichomonas vaginalis PNP has broad substrate specificity, having phosphorolytic catalytic activity with adenosine, inosine, and guanosine (with adenosine as the preferred substrate). This subfamily belongs to the nucleoside phosphorylase-I (NP-I) family, whose members accept a range of purine nucleosides as well as the pyrimidine nucleoside uridine. The NP-1 family includes phosphorolytic nucleosidases, such as purine nucleoside phosphorylase (PNPs, EC. 2.4.2.1), uridine phosphorylase (UP, EC 2.4.2.3), and 5'-deoxy-5'-methylthioadenosine phosphorylase (MTAP, EC 2.4.2.28), and hydrolytic nucleosidases, such as AMP nucleosidase (AMN, EC 3.2.2.4), and 5'-methylthioadenosine/S-adenosylhomocysteine (MTA/SAH) nucleosidase (MTAN, EC 3.2.2.16). The NP-I family is distinct from nucleoside phosphorylase-II, which belongs to a different structural family.
Pssm-ID: 350157 Cd Length: 228 Bit Score: 69.74 E-value: 4.18e-14
Purine-nucleoside phosphorylase [Nucleotide transport and metabolism]; Purine-nucleoside ...
20-260
1.20e-12
Purine-nucleoside phosphorylase [Nucleotide transport and metabolism]; Purine-nucleoside phosphorylase is part of the Pathway/BioSystem: Purine salvage
Pssm-ID: 440575 Cd Length: 236 Bit Score: 65.91 E-value: 1.20e-12
purine nucleoside phosphorylases similar to Thermus thermophiles PNP; Purine nucleoside ...
20-252
1.52e-12
purine nucleoside phosphorylases similar to Thermus thermophiles PNP; Purine nucleoside phosphorylase (PNP) catalyzes the reversible phosphorolysis of purine nucleosides. Thermus thermophiles PNP catalyzes the phosphorolysis of guanosine but not adenosine. This subfamily belongs to the nucleoside phosphorylase-I (NP-I) family, whose members accept a range of purine nucleosides as well as the pyrimidine nucleoside uridine. The NP-1 family includes phosphorolytic nucleosidases, such as purine nucleoside phosphorylase (PNPs, EC. 2.4.2.1), uridine phosphorylase (UP, EC 2.4.2.3), and 5'-deoxy-5'-methylthioadenosine phosphorylase (MTAP, EC 2.4.2.28), and hydrolytic nucleosidases, such as AMP nucleosidase (AMN, EC 3.2.2.4), and 5'-methylthioadenosine/S-adenosylhomocysteine (MTA/SAH) nucleosidase (MTAN, EC 3.2.2.16). The NP-I family is distinct from nucleoside phosphorylase-II, which belongs to a different structural family.
Pssm-ID: 350165 Cd Length: 234 Bit Score: 65.79 E-value: 1.52e-12
5'-deoxy-5'-methylthioadenosine phosphorylases similar to Sulfolobus solfataricus MTAPI; 5 ...
32-252
4.68e-10
5'-deoxy-5'-methylthioadenosine phosphorylases similar to Sulfolobus solfataricus MTAPI; 5'-deoxy-5'-methylthioadenosine phosphorylase (MTAP) catalyzes the reversible phosphorolysis of 5'-deoxy-5'-methylthioadenosine (MTA) to adenine and 5-methylthio-D-ribose-1-phosphate. Sulfolobus solfataricus MTAPI will utilize inosine, guanosine, and adenosine as substrates, in addition to MTA. Two MTAPs have been isolated from S. solfataricus: SsMTAP1 and SsMTAPII, SsMTAPII belongs to a different subfamily of the nucleoside phosphorylase-I (NP-I) family, whose members accept a range of purine nucleosides as well as the pyrimidine nucleoside uridine. The NP-I family includes phosphorolytic nucleosidases, such as purine nucleoside phosphorylase (PNPs, EC. 2.4.2.1), uridine phosphorylase (UP, EC 2.4.2.3), and 5'-deoxy-5'-methylthioadenosine phosphorylase (MTAP, EC 2.4.2.28), and hydrolytic nucleosidases, such as AMP nucleosidase (AMN, EC 3.2.2.4), and 5'-methylthioadenosine/S-adenosylhomocysteine (MTA/SAH) nucleosidase (MTAN, EC 3.2.2.16). The NP-I family is distinct from nucleoside phosphorylase-II, which belongs to a different structural family.
Pssm-ID: 350164 Cd Length: 220 Bit Score: 58.39 E-value: 4.68e-10
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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