ψ 
Affinity Labels 
Analogs of those substrates or compounds which bind naturally at the active sites of proteins, enzymes, antibodies, steroids, or physiological receptors. These analogs form a stable covalent bond at the binding site, thereby acting as inhibitors of the proteins or steroids.  D25-26 qualif; use with caution: few apply    Other names Affinity Labeling Reagents; Reagents, Affinity Labeling; Labels, Affinity; Labeling Reagents, Affinity; Affinity Labeling Reagents
Substances having this pharmacologic action: glycocyamine; Thiouridine; ethylene glycolylbis(succinimidyl succinate); hydroxysuccinimidyl-4-azidobenzoate; dihydro-DIDS; NAP taurine; lysine-sepharose; PK 14105; azidopine; 4-iodoclonidine; 2-azidoadenosine 5'-triphosphate; Ro 15-4513; dexamethasone 21-methanesulfonate; GTP gamma-4-azidoanilide; 5'-(4-fluorosulfonylbenzoyl)adenosine; 2-N-(4-(1-azitrifluoroethyl)benzoyl)-1,3-bis-(mannos-4-yloxy)-2-propylamine; enkephalin-Leu, Ala(2)-Cys(6)-; 4-nitrobenzylthioinosine; 8-azidoadenosine diphosphate; 8-azidoguanosine triphosphate; adenosine 5'-O-(2-thiotriphosphate); adenosine 5'-O-(3-thiotriphosphate); 1-(4-ethynylphenyl)-4-propyl-2,6,7-trioxabicyclo(2.2.2)octane; 3,3'-dioctadecylindocarbocyanine; 3'-O-(3-(N-(4-azido-2-nitrophenyl)amino)propionyl)adenosine-5'-triphosphate; Propylbenzilylcholine Mustard; 3'-O-(N-methylanthraniloyl) ATP; photobiotin; 8-azidoethidium; 3,3'-dipropyloxadicarbocyanine; 2-(2-benzofuranyl)-2-imidazoline; 3'-O-(4-benzoyl)benzoyladenosine 5'-triphosphate; 8-azidoadenosine 5'-triphosphate; 8-azidoadenosine-3',5'-monophosphate; bromopyruvate; 2',3'-dialdehyde ATP; pyridoxal 5'-diphospho-5'-adenosine; MSH, 4-Nle-7-Phe-alpha-; Tetrabenazine; heparin-sepharose
 
SubstanceCAS Registry & nameCategoriesSourceDrugs*
rhodamine B-aminohexylamino-glycyl-glycyl-leucyl-epoxysuccinyl-leucyl-proline  0   Affinity Labels *Oligopeptides *Rhodamines.  FEBS Lett 2000 Sep 29;482(1-2):91-6
biotin-aminohexylamino-glycyl-glycyl-leucyl-epoxysuccinyl-leucyl-proline  0   Affinity Labels *Oligopeptides Biotin/*analogs & derivatives. 
9-(4-azidophenoxy)nonanoic acid  0   Affinity Labels *Azides *Fatty Acids.  J Biol Chem 2000 Dec 8;275(49):38547-53