Spectrofluorometric method and compounds that are of value for the method
申请人:Wallac Oy
公开号:US05216134A1
公开(公告)日:1993-06-01
A chelate formed between Eu.sup.3+, Tb.sup.3+, Dy.sup.3+ and Sm.sup.3+ and a compound having the formula ##STR1## where A.sub.1-6 are single carbon or nitrogen atoms; n=1 or 2; R.sub.1-6 is nothing when A is a nitrogen, and hydrogen or an organic group when A is a carbon; Z and Z' are selected among --N(CH.sub.2 CH.sub.2 COO.sup.-).sub.2, --N(CH.sub.2 COO.sup.-).sub.2, --N(CH.sub.2 OPO.sub.3.sup.2-).sub.2 and --N(CH.sub.2 PO.sub.3.sup.2-).sub.2 ;--species that --X--Y is a substituent replacing a hydrogen anywhere in the parent compound; and --X--Y represents an organic group containing no chelating heteroatom closer than four atoms from a chelating heteroatom in the parent compound and X is a stable bridge containing certain groups and Y is selected from (a) specified relative groups allowing coupling to other compounds and (b) residues of compounds participating in biospecific affinity reactions.
A NOVEL SPECTROFLUOROMETRIC METHOD AND COMPOUNDS THAT ARE OF VALUE FOR THE METHOD
申请人:WALLAC OY
公开号:EP0357731A1
公开(公告)日:1990-03-14
MULTI-LABEL TIME-RESOLVED FLUORESCENCE ANALYSIS OF NUCLEIC ACID SEQUENCES USING LANTHANIDE CHELATES
申请人:WALLAC OY
公开号:EP0386180A1
公开(公告)日:1990-09-12
US5216134A
申请人:——
公开号:US5216134A
公开(公告)日:1993-06-01
[EN] MULTI-LABEL TIME-RESOLVED FLUORESCENCE ANALYSIS OF NUCLEIC ACID SEQUENCES USING LANTHANIDE CHELATES
申请人:WALLAC OY
公开号:WO1990000623A1
公开(公告)日:1990-01-25
(EN) The invention pertains to a method for simultaneous real time fluorometric sequence analysis of nucleic acid fragments of different lengths and four different terminals, the fragments being labelled with different fluorescent labels for the respective terminating bases. The fragments are labelled with four different labels comprising the same two lanthanides and the same two ligands as follows: label 1 = ligand 1 + lanthanide 1, label 2 = ligand 2 + lanthanide 1, label 3 = ligand 1 + lanthanide 2, label 4 = ligand 2 + lanthanide 2, where ligands 1 and 2 have different excitation wavelengths and lanthanides 1 and 2 have different emission wavelengths, excitation light is generated in the form of light pulses alternating between the different excitation wavelengths of the ligands, and the photons emitted by the labels are detected periodically for the different emission wavelengths of the lanthanides.(FR) Procédé d'analyse séquentielle fluorométrique simultanée en temps réel, de fragments d'acide nucléique de différentes longueurs et de quatre terminaisons différentes, lesdits fragments étant marqués par différentes marques fluorescentes pour les bases de terminaison respectives. Les fragments sont marqués à l'aide de quatre marques différentes comprenant les deux mêmes lanthanides et les deux mêmes ligands comme suit: marque 1 = ligand 1 + lanthanide 1, marque 2 = ligand 2 + lanthanide 1, marque 3 = ligand 1 + lanthanide 2, marque 4 = ligand 2 + lanthanide 2. Les ligands 1 et 2 ont des longueurs d'ondes d'excitation différentes, et les lanthanides 1 et 2 ont des longueurs d'ondes d'émission différentes. La lumière d'excitation est produite sous la forme d'impulsions lumineuses alternant entre les différentes longueurs d'ondes d'excitation des ligands. Les photons émis par les marques sont détectés périodiquement pour les différentes longueurs d'ondes d'émission des lanthanides.