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. 2022 Jan 1;23(1):483. doi: 10.3390/ijms23010483

Table 3.

Uremic retention solutes and their synthesizing enzymes’ mRNA abundance in HMP2. Presented uremic retention solutes had at least one enzyme’s mRNA represented in more than 90% of patients. The following information is given in parentheses for each enzyme: mRNA - percentage of patients who have mRNA for this enzyme; Q - quartile for this mRNA abundance; prot - percent of patients who have protein for this enzyme detected in proteome. The complete list is available in Supplementary Table S5.

Uremic Retention Solutes Number of Different Enzymes Where mRNA Detected Percentage of Patients Who Have at Least One Enzyme’s mRNA for This Uremic Retention Solute Enzymes
Argininic Acid 11 99.73% Nitric-oxide synthase (NADPH) (mRNA: 2.59%, Q1, prot: NA); Glycine amidinotransferase (mRNA: 0.68%, Q1, prot: NA); Arginine N-succinyltransferase (mRNA: 5.17%, Q1, prot: NA); Arginine--pyruvate transaminase (mRNA: 0.14%, Q1, prot: NA); Arginine kinase (mRNA: 9.12%, Q2, prot: NA); [Protein ADP-ribosylarginine] hydrolase (mRNA: 2.86%, Q2, prot: NA); Arginase (mRNA: 82.31%, Q2, prot: 0.22%); Arginine deiminase (mRNA: 83.27%, Q2, prot: 8.22%); Arginine decarboxylase (mRNA: 91.29%, Q2, prot: 32%); Argininosuccinate lyase (mRNA: 99.18%, Q4, prot: 14%); Arginine--tRNA ligase (mRNA: 99.59%, Q4, prot: 42%)
S-Adenosylhomocysteine 64 99.59% Homocysteine S-methyltransferase (mRNA: 4.49%, Q1, prot: NA); Protein-S-isoprenylcysteine O-methyltransferase (mRNA: 0%, QNA, prot: NA); Caffeoyl-CoA O-methyltransferase (mRNA: 8.98%, Q1, prot: NA); Uroporphyrinogen-III C-methyltransferase (mRNA: 52.65%, Q1, prot: 1.33%); Site-specific DNA-methyltransferase (cytosine-N(4)-specific) (mRNA: 2.45%, Q1, prot: NA); Precorrin-2 C(20)-methyltransferase (mRNA: 57.96%, Q1, prot: NA); Precorrin-3B C(17)-methyltransferase (mRNA: 78.91%, Q2, prot: NA); Precorrin-6B C(5,15)-methyltransferase (decarboxylating) (mRNA: 86.94%, Q2, prot: 0.22%); Precorrin-4 C(11)-methyltransferase (mRNA: 71.56%, Q1, prot: NA); Trans-aconitate 2-methyltransferase (mRNA: 8.98%, Q1, prot: 0.22%)... (see all 64 enzymes in ST 4)
Orotidine 2 99.59% Orotate phosphoribosyltransferase (mRNA: 99.05%, Q4, prot: 35.78%); Orotidine-5’-phosphate decarboxylase (mRNA: 99.32%, Q4, prot: 63.78%)
Uridine 7 99.46% Pyrimidine-nucleoside phosphorylase (mRNA: 50.88%, Q1, prot: 0.22%); Uridine phosphorylase (mRNA: 91.84%, Q2, prot: 4.67%); Uridine kinase (mRNA: 99.05%, Q4, prot: 2.89%); 5’-nucleotidase (mRNA: 98.64%, Q4, prot: 1.56%); 3’-nucleotidase (mRNA: 19.46%, Q1, prot: 0.89%); Uridine nucleosidase (mRNA: 0.54%, Q1, prot: NA); Cytidine deaminase (mRNA: 87.62%, Q2, prot: 11.56%)
Hypoxanthine 8 99.32% Xanthine dehydrogenase (mRNA: 80%, Q2, prot: 0.89%); Purine-nucleoside phosphorylase (mRNA: 99.18%, Q4, prot: 62.67%); Thymidine phosphorylase (mRNA: 58.5%, Q1, prot: 0.89%); S-methyl-5’-thioinosine phosphorylase (mRNA: 0.41%, Q1, prot: NA); Hypoxanthine phosphoribosyltransferase (mRNA: 97.69%, Q3, prot: 6.89%); Purine nucleosidase (mRNA: 28.44%, Q1, prot: NA); Ribosylpyrimidine nucleosidase (mRNA: 3.67%, Q1, prot: NA); Adenine deaminase (mRNA: 96.46%, Q2, prot: 0.22%)
Cytidine 6 99.32% Pyrimidine-nucleoside phosphorylase (mRNA: 50.88%, Q1, prot: 0.22%); Uridine kinase (mRNA: 99.05%, Q4, prot: 2.89%); 5’-nucleotidase (mRNA: 98.64%, Q4, prot: 1.56%); 3’-nucleotidase (mRNA: 19.46%, Q1, prot: 0.89%); Ribosylpyrimidine nucleosidase (mRNA: 3.67%, Q1, prot: NA); Cytidine deaminase (mRNA: 87.62%, Q2, prot: 11.56%)
Orotic Acid 4 99.32% Dihydroorotate dehydrogenase (NAD(+)) (mRNA: 91.43%, Q3, prot: 14.44%); Dihydroorotate dehydrogenase (quinone) (mRNA: 93.47%, Q3, prot: 0.44%); Dihydroorotate oxidase (fumarate) (mRNA: 2.86%, Q1, prot: NA); Orotate phosphoribosyltransferase (mRNA: 99.05%, Q4, prot: 35.78%)
Nicotinamide 7 99.18% Purine-nucleoside phosphorylase (mRNA: 99.18%, Q4, prot: 62.67%); Nicotinamide phosphoribosyltransferase (mRNA: 0.41%, Q1, prot: NA); NAD(+) ADP-ribosyltransferase (mRNA: 0.41%, Q2, prot: 0%); Purine nucleosidase (mRNA: 28.44%, Q1, prot: NA); Uridine nucleosidase (mRNA: 0.54%, Q1, prot: NA); ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase (mRNA: 0%, QNA, prot: NA); Nicotinamidase (mRNA: 19.32%, Q1, prot: NA)
Xanthine 6 99.18% Xanthine dehydrogenase (mRNA: 80%, Q2, prot: 0.89%); Purine-nucleoside phosphorylase (mRNA: 99.18%, Q4, prot: 62.67%); Xanthine phosphoribosyltransferase (mRNA: 98.37%, Q4, prot: 16.22%); Hypoxanthine phosphoribosyltransferase (mRNA: 97.69%, Q3, prot: 6.89%); Purine nucleosidase (mRNA: 28.44%, Q1, prot: NA); Guanine deaminase (mRNA: 42.04%, Q1, prot: 0%)
Inosine 6 99.18% Purine-nucleoside phosphorylase (mRNA: 99.18%, Q4, prot: 62.67%); Inosine kinase (mRNA: 17.69%, Q1, prot: NA); 5’-nucleotidase (mRNA: 98.64%, Q4, prot: 1.56%); Purine nucleosidase (mRNA: 28.44%, Q1, prot: NA); Ribosylpyrimidine nucleosidase (mRNA: 3.67%, Q1, prot: NA); Adenosine deaminase (mRNA: 36.46%, Q1, prot: 0.22%)
Myoinositol 5 99.18% Inositol 2-dehydrogenase (mRNA: 16.33%, Q1, prot: 0.89%); Galactinol--raffinose galactosyltransferase (mRNA: 0.27%, Q2, prot: NA); CDP-diacylglycerol--inositol 3-phosphatidyltransferase (mRNA: 3.54%, Q2, prot: NA); Inositol-phosphate phosphatase (mRNA: 87.48%, Q2, prot: 0.22%); Alpha-galactosidase (mRNA: 99.05%, Q3, prot: 11.56%)
Xanthosine 3 99.18% Purine-nucleoside phosphorylase (mRNA: 99.18%, Q4, prot: 62.67%); 5’-nucleotidase (mRNA: 98.64%, Q4, prot: 1.56%); Purine nucleosidase (mRNA: 28.44%, Q1, prot: NA)
Methylglyoxal 8 99.05% Aldehyde reductase (mRNA: 11.43%, Q1, prot: NA); Methylglyoxal reductase (NADPH) (mRNA: 5.71%, Q2, prot: NA); Glycerol dehydrogenase (mRNA: 54.01%, Q1, prot: 7.11%); Glyoxylate reductase (NADP(+)) (mRNA: 17.28%, Q1, prot: NA); Lactaldehyde dehydrogenase (mRNA: 24.76%, Q1, prot: 0.89%); D-lactate dehydratase (mRNA: 15.78%, Q1, prot: 0.22%); Methylglyoxal synthase (mRNA: 98.91%, Q4, prot: 58.22%); Lactoylglutathione lyase (mRNA: 66.8%, Q2, prot: 0.67%)
Homocysteine 8 99.05% Homocysteine S-methyltransferase (mRNA: 4.49%, Q1, prot: NA); Methionine synthase (mRNA: 82.45%, Q2, prot: 0.44%); 5-methyltetrahydropteroyltriglutamate--homocysteine S-methyltransferase (mRNA: 38.23%, Q1, prot: 18.67%); Cystathionine gamma-synthase (mRNA: 29.52%, Q1, prot: 0.67%); O-acetylhomoserine aminocarboxypropyltransferase (mRNA: 94.01%, Q2, prot: 21.56%); Adenosylhomocysteinase (mRNA: 97.82%, Q3, prot: 16.22%); Cystathionine beta-synthase (mRNA: 4.35%, Q1, prot: NA); S-ribosylhomocysteine lyase (mRNA: 97.82%, Q3, prot: 42.89%)
Sorbitol 4 99.05% L-iditol 2-dehydrogenase (mRNA: 63.27%, Q1, prot: 4.89%); Aldehyde reductase (mRNA: 11.43%, Q1, prot: NA); Hexokinase (mRNA: 33.88%, Q1, prot: NA); Alpha-galactosidase (mRNA: 99.05%, Q3, prot: 11.56%)
Phenylacetic acid 6 98.37% Phenylacetaldehyde dehydrogenase (mRNA: 4.08%, Q1, prot: NA); Aldehyde dehydrogenase (NAD(P)(+)) (mRNA: 5.85%, Q1, prot: NA); Penicillin amidase (mRNA: 62.99%, Q1, prot: 0.44%); Amidase (mRNA: 1.09%, Q1, prot: NA); Nitrilase (mRNA: 0.27%, Q1, prot: NA); Phenylacetate--CoA ligase (mRNA: 98.23%, Q4, prot: 12.44%)
Putrescine 11 98.1% Non-specific polyamine oxidase (mRNA: 0.41%, Q2, prot: NA); Putrescine carbamoyltransferase (mRNA: 1.5%, Q1, prot: NA); Diamine N-acetyltransferase (mRNA: 83.4%, Q2, prot: NA); Spermidine synthase (mRNA: 76.87%, Q2, prot: 0.44%); Homospermidine synthase (mRNA: 0.54%, Q1, prot: NA); Diamine transaminase (mRNA: 0.14%, Q1, prot: NA); Putrescine aminotransferase (mRNA: 16.19%, Q1, prot: NA); N-carbamoylputrescine amidase (mRNA: 28.84%, Q1, prot: NA); Agmatinase (mRNA: 74.29%, Q2, prot: 1.33%); Ornithine decarboxylase (mRNA: 48.71%, Q2, prot: 2.89%); Glutamate--putrescine ligase (mRNA: 6.8%, Q1, prot: NA)
Quinolinic Acid 2 98.1% Nicotinate-nucleotide diphosphorylase (carboxylating) (mRNA: 77.55%, Q2, prot: 8.89%); Quinolinate synthase (mRNA: 97.82%, Q3, prot: 4.67%)
3-hydroxyanthranilic acid 4 97.82% Catalase peroxidase (mRNA: 4.9%, Q2, prot: 5.11%); Catalase (mRNA: 97.69%, Q3, prot: 22.22%); 3-hydroxyanthranilate 3,4-dioxygenase (mRNA: 0.27%, Q2, prot: NA); Kynureninase (mRNA: 0.27%, Q2, prot: NA)
Urea 8 96.87% Urease (mRNA: 58.78%, Q2, prot: 0.67%); Arginase (mRNA: 82.31%, Q2, prot: 0.22%); Agmatinase (mRNA: 74.29%, Q2, prot: 1.33%); Creatinase (mRNA: 0.95%, Q2, prot: NA); Allantoicase (mRNA: 0.68%, Q2, prot: NA); Guanidinobutyrase (mRNA: 0.27%, Q1, prot: NA); Ureidoglycolate lyase (mRNA: 5.44%, Q1, prot: 0.22%); Urea carboxylase (mRNA: 27.76%, Q1, prot: NA)
Anthranilic acid 5 96.33% Anthranilate phosphoribosyltransferase (mRNA: 94.29%, Q2, prot: 2%); Arylformamidase (mRNA: 0.41%, Q1, prot: NA); Kynureninase (mRNA: 0.27%, Q2, prot: NA); Anthranilate synthase (mRNA: 55.1%, Q1, prot: 0.89%); Anthranilate--CoA ligase (mRNA: 0.27%, Q1, prot: NA)
Phenol 3 89.66% Arylesterase (mRNA: 16.73%, Q1, prot: NA); 4-hydroxybenzoate decarboxylase (mRNA: 3.95%, Q2, prot: NA); Tyrosine phenol-lyase (mRNA: 86.67%, Q3, prot: NA)
Uric Acid 3 80.00% FAD-dependent urate hydroxylase (mRNA: 0.68%, Q1, prot: NA); Xanthine dehydrogenase (mRNA: 80%, Q2, prot: 0.89%); 8-oxoguanine deaminase (mRNA: 0%, QNA, prot: NA)
Trimethylamine 3 78.23% Betaine reductase (mRNA: 75.65%, Q3, prot: 0.44%); Trimethylamine dehydrogenase (mRNA: 0.27%, Q1, prot: NA); Trimethylamine-N-oxide reductase (cytochrome c) (mRNA: 10.2%, Q1, prot: 0.44%)
Hippuric acid 1 44.63% Hippurate hydrolase (mRNA: 44.63%, Q1, prot: NA)
Monomethylamine 1 42.99% Sarcosine reductase (mRNA: 42.99%, Q1, prot: 0.44%)
Creatine 3 28.44% Creatine kinase (mRNA: 1.5%, Q1, prot: 0%); Creatininase (mRNA: 26.39%, Q1, prot: 0.67%); Creatinase (mRNA: 0.95%, Q2, prot: NA)
Creatinine 1 26.39% Creatininase (mRNA: 26.39%, Q1, prot: 0.67%)
Oxalate 3 22.72% Formyl-CoA transferase (mRNA: 20.54%, Q1, prot: 1.33%); CoA:oxalate CoA-transferase (mRNA: 3.27%, Q1, prot: 0.22%); Oxalate--CoA ligase (mRNA: 0.14%, Q1, prot: NA)
Mannitol 3 21.9% D-arabinitol 4-dehydrogenase (mRNA: 0.68%, Q1, prot: NA); Mannitol dehydrogenase (mRNA: 0.41%, Q1, prot: NA); Mannitol 2-dehydrogenase (mRNA: 21.22%, Q1, prot: NA)
Phenol sulfate 2 20.27% Aryl-sulfate sulfotransferase (mRNA: 5.99%, Q1, prot: NA); Arylsulfatase (mRNA: 15.37%, Q1, prot: NA)
Arab(in)itol 1 11.43% Aldehyde reductase (mRNA: 11.43%, Q1, prot: NA)
Trimethylamine-N-oxide 1 10.2% Trimethylamine-N-oxide reductase (cytochrome c) (mRNA: 10.2%, Q1, prot: 0.44%)
Pseudouridine 1 9.66% Pseudouridine kinase (mRNA: 9.66%, Q1, prot: NA)
p-Cresyl sulfate 2 9.12% 4-hydroxyphenylacetate decarboxylase (mRNA: 0.95%, Q2, prot: NA); 2-iminoacetate synthase (mRNA: 8.71%, Q1, prot: NA)
3-(3-Hydroxyphenyl) propanoic acid 1 9.12% 3-(3-hydroxy-phenyl)propanoic acid hydroxylase (mRNA: 9.12%, Q1, prot: NA)
a-keto-d-Guanidinovaleric Acid 2 5.85% D-amino-acid transaminase (mRNA: 5.71%, Q1, prot: NA); Arginine--pyruvate transaminase (mRNA: 0.14%, Q1, prot: NA)
Indole-3-acetic acid 3 3.95% Aldehyde dehydrogenase (NAD(+)) (mRNA: 2.72%, Q1, prot: NA); Amidase (mRNA: 1.09%, Q1, prot: NA); Nitrilase (mRNA: 0.27%, Q1, prot: NA)
y-guanidinobutyric Acid 3 1.9% Glycine amidinotransferase (mRNA: 0.68%, Q1, prot: NA); Amidase (mRNA: 1.09%, Q1, prot: NA); Guanidinobutyrase (mRNA: 0.27%, Q1, prot: NA)
Hyaluronic acid (Hyaluronan) 1 1.9% Hyaluronan synthase (mRNA: 1.9%, Q1, prot: 0.22%)
Gentisic acid 1 1.22% 3-hydroxybenzoate 6-monooxygenase (mRNA: 1.22%, Q1, prot: 0.22%)
Kinurenine 4 0.95% Kynurenine 3-monooxygenase (mRNA: 0%, QNA, prot: NA); Kynurenine--oxoglutarate transaminase (mRNA: 0.82%, Q2, prot: 0%); Arylformamidase (mRNA: 0.41%, Q1, prot: NA); Kynureninase (mRNA: 0.27%, Q2, prot: NA)
Dimethylamine 2 0.95% Trimethylamine dehydrogenase (mRNA: 0.27%, Q1, prot: NA); Dimethylargininase (mRNA: 0.68%, Q2, prot: NA)
Kynurenic Acid 1 0.82% Kynurenine--oxoglutarate transaminase (mRNA: 0.82%, Q2, prot: 0%)
Taurocyamine 1 0.68% Glycine amidinotransferase (mRNA: 0.68%, Q1, prot: NA)
Asymmetric Dimethylarginine (ADMA) 1 0.68% Dimethylargininase (mRNA: 0.68%, Q2, prot: NA)