Found 17 hits Enz. Inhib. hit(s) with Target = 'Bifunctional dihydrofolate reductase-thymidylate synthase' and Ligand = 'BDBM18050' Target/Host (Institution) | Ligand | Target/Host Links | Ligand Links | Trg + Lig Links | Ki nM | ΔG° kJ/mole | IC50 nM | Kd nM | EC50/IC50 nM | koff s-1 | kon M-1s-1 | pH | Temp °C |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Leishmania major) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | KEGG
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| PubMed
| 0.129 | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
TBA
Curated by ChEMBL
| Assay Description Inhibition of dihydrofolate reductase (DHFR) from Leishmania major |
J Med Chem 30: 1218-24 (1987)
Checked by Author BindingDB Entry DOI: 10.7270/Q21V5FJ0 |
More data for this Ligand-Target Pair | |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Toxoplasma gondii) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | PDB
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| Article PubMed
| n/a | n/a | 1.40 | n/a | n/a | n/a | n/a | n/a | n/a |
University
Curated by ChEMBL
| Assay Description Inhibitory activity against Dihydrofolate reductase from Toxoplasma gondii was evaluated using 90 microM dihydrofolic acid as substrate |
J Med Chem 40: 3040-8 (1997)
Article DOI: 10.1021/jm970055k BindingDB Entry DOI: 10.7270/Q2C53JZ2 |
More data for this Ligand-Target Pair | |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Toxoplasma gondii) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | PDB
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| Article PubMed
| n/a | n/a | 11 | n/a | n/a | n/a | n/a | 7.4 | 30 |
Duquesne University
| Assay Description DHFRs were assayed spectrophotometrically in the reaction buffer solution containing dihydrofolate. The reaction was initiated with an amount of enzy... |
J Med Chem 48: 7215-22 (2005)
Article DOI: 10.1021/jm058234m BindingDB Entry DOI: 10.7270/Q2CV4G0Z |
More data for this Ligand-Target Pair | |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Toxoplasma gondii) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | PDB
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| Article PubMed
| n/a | n/a | 11 | n/a | n/a | n/a | n/a | n/a | n/a |
Duquesne University
Curated by ChEMBL
| Assay Description Inhibition of Toxoplasma gondii dihydrofolate reductase |
J Med Chem 51: 4589-600 (2008)
Article DOI: 10.1021/jm800244v BindingDB Entry DOI: 10.7270/Q2ZW1MTV |
More data for this Ligand-Target Pair | |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Toxoplasma gondii) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | PDB
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| Article PubMed
| n/a | n/a | 14 | n/a | n/a | n/a | n/a | n/a | n/a |
Duquesne University
Curated by ChEMBL
| Assay Description Inhibition of T. gondii Dihydrofolate reductase |
J Med Chem 41: 1409-16 (1998)
Article DOI: 10.1021/jm9705420 BindingDB Entry DOI: 10.7270/Q2513XB9 |
More data for this Ligand-Target Pair | |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Toxoplasma gondii) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | PDB
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| PubMed
| n/a | n/a | 14 | n/a | n/a | n/a | n/a | n/a | n/a |
Duquesne University
Curated by ChEMBL
| Assay Description Inhibitory concentration of the compound for DHFR in Toxoplasma gondii |
J Med Chem 37: 1169-76 (1994)
BindingDB Entry DOI: 10.7270/Q2K64H4G |
More data for this Ligand-Target Pair | |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Toxoplasma gondii) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | PDB
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| PubMed
| n/a | n/a | 14 | n/a | n/a | n/a | n/a | n/a | n/a |
Duquesne University
Curated by ChEMBL
| Assay Description Inhibition of Toxoplasma gondii (tc) Dihydrofolate reductase |
J Med Chem 38: 2158-65 (1995)
BindingDB Entry DOI: 10.7270/Q2DB80V1 |
More data for this Ligand-Target Pair | |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Toxoplasma gondii) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | PDB
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| Article PubMed
| n/a | n/a | 14 | n/a | n/a | n/a | n/a | n/a | n/a |
Duquesne University
Curated by ChEMBL
| Assay Description Inhibitory activity against Toxoplasma gondii dihydrofolate reductase (in 90 microM dihydrofolic acid) |
J Med Chem 39: 1438-46 (1996)
Article DOI: 10.1021/jm950786p BindingDB Entry DOI: 10.7270/Q2PK0F8N |
More data for this Ligand-Target Pair | |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Toxoplasma gondii) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | PDB
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| Article PubMed
| n/a | n/a | 14 | n/a | n/a | n/a | n/a | n/a | n/a |
Duquesne University
Curated by ChEMBL
| Assay Description Inhibition against Dihydrofolate reductase in Toxoplasma gondii |
J Med Chem 40: 1173-7 (1997)
Article DOI: 10.1021/jm960717q BindingDB Entry DOI: 10.7270/Q2QR4W74 |
More data for this Ligand-Target Pair | |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Toxoplasma gondii) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | PDB
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| Article PubMed
| n/a | n/a | 22 | n/a | n/a | n/a | n/a | n/a | n/a |
Duquesne University
Curated by ChEMBL
| Assay Description Inhibitory activity of the compound against Toxoplasma gondii dihydrofolate reductase (in 50 microM dihydrofolic acid) |
J Med Chem 39: 1438-46 (1996)
Article DOI: 10.1021/jm950786p BindingDB Entry DOI: 10.7270/Q2PK0F8N |
More data for this Ligand-Target Pair | |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Toxoplasma gondii) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | PDB
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| Article PubMed
| n/a | n/a | 33 | n/a | n/a | n/a | n/a | n/a | n/a |
Duquesne University
Curated by ChEMBL
| Assay Description Inhibition of Toxoplasma gondii DHFR |
J Med Chem 51: 5789-97 (2008)
Article DOI: 10.1021/jm8006933 BindingDB Entry DOI: 10.7270/Q2FF3T7B |
More data for this Ligand-Target Pair | |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Toxoplasma gondii) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | PDB
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| Article PubMed
| n/a | n/a | 33 | n/a | n/a | n/a | n/a | n/a | n/a |
Duquesne University
Curated by ChEMBL
| Assay Description Inhibition of Toxoplasma gondii DHFR |
Bioorg Med Chem 20: 4217-25 (2012)
Article DOI: 10.1016/j.bmc.2012.05.068 BindingDB Entry DOI: 10.7270/Q25X29ZH |
More data for this Ligand-Target Pair | |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Toxoplasma gondii) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | PDB
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| Article PubMed
| n/a | n/a | 33 | n/a | n/a | n/a | n/a | n/a | n/a |
Duquesne University
| Assay Description DHFRs were assayed spectrophotometrically in the reaction buffer solution containing dihydrofolate. The reaction was initiated with an amount of enzy... |
J Med Chem 52: 4892-902 (2009)
Article DOI: 10.1021/jm900490a BindingDB Entry DOI: 10.7270/Q2CR5RPK |
More data for this Ligand-Target Pair | |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Toxoplasma gondii) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | PDB
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| Article PubMed
| n/a | n/a | 33 | n/a | n/a | n/a | n/a | n/a | n/a |
Duquesne University
| Assay Description DHFRs were assayed spectrophotometrically in the reaction buffer solution containing dihydrofolate. The reaction was initiated with an amount of enzy... |
J Med Chem 51: 68-76 (2008)
Article DOI: 10.1021/jm701052u BindingDB Entry DOI: 10.7270/Q2057D6N |
More data for this Ligand-Target Pair | |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Toxoplasma gondii) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | PDB
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| Article PubMed
| n/a | n/a | 71 | n/a | n/a | n/a | n/a | n/a | n/a |
Turing Pharmaceuticals AG
Curated by ChEMBL
| Assay Description Inhibition of Toxoplasma gondii TS-DHFR expressed in Escherichia coli BL21 preincubated for 15 mins followed by addition of DHF as substrate and NADP... |
ACS Med Chem Lett 7: 1124-1129 (2016)
Article DOI: 10.1021/acsmedchemlett.6b00328 BindingDB Entry DOI: 10.7270/Q2Z60R1X |
More data for this Ligand-Target Pair | |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Toxoplasma gondii) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | PDB
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| Article PubMed
| n/a | n/a | 1.80E+4 | n/a | n/a | n/a | n/a | n/a | n/a |
Duquesne University
| Assay Description TS was assayed spectrophotometrically in the reaction buffer solution containing (6R, 6S)-5, 10-CH2H4folate. The reaction was initiated by the additi... |
J Med Chem 48: 7215-22 (2005)
Article DOI: 10.1021/jm058234m BindingDB Entry DOI: 10.7270/Q2CV4G0Z |
More data for this Ligand-Target Pair | |
Bifunctional dihydrofolate reductase-thymidylate synthase
(Toxoplasma gondii) | BDBM18050
(2-[(4-{[(2,4-diaminopteridin-6-yl)methyl](methyl)a...)Show SMILES CN(Cc1cnc2nc(N)nc(N)c2n1)c1ccc(cc1)C(=O)N[C@@H](CCC(O)=O)C(O)=O |r| Show InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1 | PDB
UniProtKB/SwissProt
GoogleScholar AffyNet
| Purchase
CHEMBL DrugBank MCE KEGG MMDB PC cid PC sid PDB UniChem
Patents
Similars
| Article PubMed
| n/a | n/a | 1.80E+4 | n/a | n/a | n/a | n/a | n/a | n/a |
Duquesne University
Curated by ChEMBL
| Assay Description Inhibition of Toxoplasma gondii thymidylate synthase |
J Med Chem 51: 4589-600 (2008)
Article DOI: 10.1021/jm800244v BindingDB Entry DOI: 10.7270/Q2ZW1MTV |
More data for this Ligand-Target Pair | |