Target/Host (Institution) | Ligand | Target/Host Links | Ligand Links | Trg + Lig Links | Ki nM | ΔG° kcal/mole | IC50 nM | Kd nM | EC50/IC50 nM | koff s-1 | kon M-1s-1 | pH | Temp °C |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24732 ((2S)-6-amino-N-[(1S)-5-amino-1-{[(2S)-5-carbamimid...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 6 | -11.7 | 32 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24731 ((2S)-6-amino-N-[(1S)-5-amino-1-{[(2S)-5-carbamimid...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 9 | -11.4 | 51 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24734 ((2S)-6-amino-N-[(1S)-5-amino-1-{[(2S)-5-carbamimid...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 11 | -11.3 | 60 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24746 ((2S)-6-amino-N-[(1S)-4-amino-1-{[(2S)-5-carbamimid...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 13 | -11.2 | 73 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24739 ((2S)-6-amino-N-[(1S)-5-amino-1-{[(2S)-5-carbamimid...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 19 | -10.9 | 107 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24733 ((2S)-6-amino-N-[(1S)-5-amino-1-{[(2S)-5-carbamimid...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 20 | -10.9 | 112 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24735 ((2S)-6-amino-N-[(1S)-5-amino-1-{[(2S)-5-carbamimid...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 26 | -10.8 | 146 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24741 ((2S)-6-amino-N-[(2S)-5-carbamimidamido-1-oxopentan...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 28 | -10.7 | 154 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24736 (Capped tripeptide aldehyde inhibitor, 24 | benzyl ...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 40 | -10.5 | 222 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24728 ((2S)-6-amino-N-[(1S)-5-amino-1-{[(2S)-5-carbamimid...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid PDB UniChem Similars | PDB Article PubMed | 41 | -10.5 | 231 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | 3D Structure (crystal) | ||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24744 ((2S)-N-[(1S)-5-amino-1-{[(2S)-5-carbamimidamido-1-...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 44 | -10.4 | 245 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24742 ((2S)-6-amino-2-[(2S)-5-amino-2-(1-phenylacetamido)...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 46 | -10.4 | 255 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24737 ((2S)-6-amino-N-[(1S)-5-amino-1-{[(2S)-5-carbamimid...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 49 | -10.4 | 271 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24748 ((2S)-2-[(2S)-6-amino-2-(1-phenylacetamido)hexanami...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 53 | -10.3 | 297 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24745 ((2S)-6-amino-N-[(1S)-4-carbamimidamido-1-{[(2S)-5-...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 58 | -10.3 | 325 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24738 ((2S)-6-amino-N-[(1S)-5-amino-1-{[(2S)-5-carbamimid...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 81 | -10.1 | 454 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24730 ((2S)-6-amino-2-[(2S)-6-amino-2-[(2E)-3-phenylprop-...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 104 | -9.90 | 580 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24743 ((2S)-6-amino-N-[(2S)-5-carbamimidamido-1-oxopentan...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | KEGG PC cid PC sid UniChem Similars | Article PubMed | 111 | -9.86 | 619 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24740 ((2S)-6-amino-N-[(1S)-5-amino-1-{[(2S)-5-carbamimid...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 160 | -9.64 | 891 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM33256 (phthalazine-based compound, 7) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | n/a | n/a | 2.20E+3 | n/a | n/a | n/a | n/a | 7.5 | 37 |
Novartis Institute for Tropical Diseases | Assay Description Inhibitors were assayed in a 96-well plate format. Typically, protease was preincubated with concentrations of test compounds at 37 deg C for 30 min.... | Anal Biochem 395: 195-204 (2009) Article DOI: 10.1016/j.ab.2009.08.013 BindingDB Entry DOI: 10.7270/Q2VM49MW | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM33251 (phthalazine-based compound, 2) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | n/a | n/a | 3.60E+3 | n/a | n/a | n/a | n/a | 7.5 | 37 |
Novartis Institute for Tropical Diseases | Assay Description Inhibitors were assayed in a 96-well plate format. Typically, protease was preincubated with concentrations of test compounds at 37 deg C for 30 min.... | Anal Biochem 395: 195-204 (2009) Article DOI: 10.1016/j.ab.2009.08.013 BindingDB Entry DOI: 10.7270/Q2VM49MW | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM33253 (phthalazine-based compound, 4) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | n/a | n/a | 5.20E+3 | 4.60E+3 | n/a | n/a | n/a | 7.5 | 37 |
Novartis Institute for Tropical Diseases | Assay Description Inhibitors were assayed in a 96-well plate format. Typically, protease was preincubated with concentrations of test compounds at 37 deg C for 30 min.... | Anal Biochem 395: 195-204 (2009) Article DOI: 10.1016/j.ab.2009.08.013 BindingDB Entry DOI: 10.7270/Q2VM49MW | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM33255 (phthalazine-based compound, 6) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | n/a | n/a | 6.20E+3 | 7.00E+3 | n/a | n/a | n/a | 7.5 | 37 |
Novartis Institute for Tropical Diseases | Assay Description Inhibitors were assayed in a 96-well plate format. Typically, protease was preincubated with concentrations of test compounds at 37 deg C for 30 min.... | Anal Biochem 395: 195-204 (2009) Article DOI: 10.1016/j.ab.2009.08.013 BindingDB Entry DOI: 10.7270/Q2VM49MW | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM33254 (phthalazine-based compound, 5) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | n/a | n/a | 1.06E+4 | 1.00E+5 | n/a | n/a | n/a | 7.5 | 37 |
Novartis Institute for Tropical Diseases | Assay Description Inhibitors were assayed in a 96-well plate format. Typically, protease was preincubated with concentrations of test compounds at 37 deg C for 30 min.... | Anal Biochem 395: 195-204 (2009) Article DOI: 10.1016/j.ab.2009.08.013 BindingDB Entry DOI: 10.7270/Q2VM49MW | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24747 ((2S)-6-amino-N-[(1S)-1-{[(2S)-5-carbamimidamido-1-...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | KEGG PC cid PC sid UniChem Similars | Article PubMed | 2.07E+3 | -8.06 | 1.16E+4 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM33257 (phthalazine-based compound, 8) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | n/a | n/a | 1.60E+4 | n/a | n/a | n/a | n/a | 7.5 | 37 |
Novartis Institute for Tropical Diseases | Assay Description Inhibitors were assayed in a 96-well plate format. Typically, protease was preincubated with concentrations of test compounds at 37 deg C for 30 min.... | Anal Biochem 395: 195-204 (2009) Article DOI: 10.1016/j.ab.2009.08.013 BindingDB Entry DOI: 10.7270/Q2VM49MW | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM33252 (phthalazine-based compound, 3) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | n/a | n/a | 2.20E+4 | 9.00E+4 | n/a | n/a | n/a | 7.5 | 37 |
Novartis Institute for Tropical Diseases | Assay Description Inhibitors were assayed in a 96-well plate format. Typically, protease was preincubated with concentrations of test compounds at 37 deg C for 30 min.... | Anal Biochem 395: 195-204 (2009) Article DOI: 10.1016/j.ab.2009.08.013 BindingDB Entry DOI: 10.7270/Q2VM49MW | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM33250 (phthalazine-based compound, 1) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | n/a | n/a | 2.45E+4 | 2.10E+4 | n/a | n/a | n/a | 7.5 | 37 |
Novartis Institute for Tropical Diseases | Assay Description Inhibitors were assayed in a 96-well plate format. Typically, protease was preincubated with concentrations of test compounds at 37 deg C for 30 min.... | Anal Biochem 395: 195-204 (2009) Article DOI: 10.1016/j.ab.2009.08.013 BindingDB Entry DOI: 10.7270/Q2VM49MW | |||||||||||
More data for this Ligand-Target Pair | |||||||||||||
Genome polyprotein [1424-1463]/[1502-1685] (West Nile virus (WNV)) | BDBM24749 ((2S)-6-amino-N-[(1S)-5-amino-1-{[(2S)-1-(1H-indol-...) | PDB MMDB UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet | PC cid PC sid UniChem Similars | Article PubMed | 4.60E+3 | -7.57 | 2.57E+4 | n/a | n/a | n/a | n/a | 9.5 | 37 |
University of Queensland | Assay Description Inhibition of WNV protease activity was measured using recombinant WNV protease, which first incubated with inhibitor in 96-well plates. Catalysis wa... | J Med Chem 51: 5714-21 (2008) Article DOI: 10.1021/jm800503y BindingDB Entry DOI: 10.7270/Q27P8WPF | |||||||||||
More data for this Ligand-Target Pair |