Abstract: The present invention concerns a method for the quantification of a target nucleic acid in a sample comprising the following steps: (i) determination of the amplification efficiency of the target nucleic acid under defined amplification conditions, (ii) amplification of the target nucleic acid contained in the sample under the same defined reaction conditions, (iii) measuring the amplification in real-time, (iv) quantification of the original amount of target nucleic acid in the sample by correction of the original amount derived from step (iii) with the aid of the determined amplification efficiency. The efficiency correction of PCR reactions according to the invention for the quantification of nucleic acids can be used for absolute quantification with the aid of an external or internal standard as well as for relative quantification compared to the expression of housekeeping genes.

Abstract: The present invention concerns a method for the quantification of a target nucleic acid in a sample comprising the following steps: (i) determination of the amplification efficiency of the target nucleic acid under defined amplification conditions, (ii) amplification of the target nucleic acid contained in the sample under the same defined reaction conditions, (iii) measuring the amplification in real-time, (iv) quantification of the original amount of target nucleic acid in the sample by correction of the original amount derived from step (iii) with the aid of the determined amplification efficiency. The efficiency correction of PCR reactions according to the invention for the quantification of nucleic acids can be used for absolute quantification with the aid of an external or internal standard as well as for relative quantification compared to the expression of housekeeping genes.

Abstract: The present invention concerns a method for the quantification of a target nucleic acid in a sample comprising the following steps: (i) determination of the amplification efficiency of the target nucleic acid under defined amplification conditions, (ii) amplification of the target nucleic acid contained in the sample under the same defined reaction conditions, (iii) measuring the amplification in real-time, (iv) quantification of the original amount of target nucleic acid in the sample by correction of the original amount derived from step (iii) with the aid of the determined amplification efficiency. The efficiency correction of PCR reactions according to the invention for the quantification of nucleic acids can be used for absolute quantification with the aid of an external or internal standard as well as for relative quantification compared to the expression of housekeeping genes.

Abstract: The present invention concerns a labelling reagent in which the label is bound via an amide bond and a linker to a residue of the molecule which is essentially characterized in that the N atom of the amide bond and the label are linked together directly by a covalent bond. In particular these are phosphoramidites or reactive supports suitable for nucleic acid synthesis. The invention also concerns processes for the production of such supports from suitable precursors.

Abstract: The present invention concerns a method for determining the efficiency of the amplification of a target nucleic acid comprising the following steps: (i) preparation of a dilution series of the target nucleic acid, (ii) amplifying the target nucleic acid under defined reaction conditions, the amplification being measured in real-time (iii) setting a defined signal threshold value, (iv) determining the cycle number at which the signal threshold value is exceeded for various dilutions, (v) determining the amplification efficiency as a function of the amount of original target nucleic acid. The present invention also concerns a method for the quantification of a target nucleic acid in a sample in which the efficiency of the amplification reaction is determined in this manner and is taken into account in the quantification.

Abstract: The present invention concerns a method and a device which enables an integrated amplification and detection of nucleic acids.

Abstract: The invention concerns rhodamine derivatives of the general formulae in which Ca-Cd each denote a C atom, and Ca and Cb as well as Cc and Cd are either linked together by a single bond or by a double bond; X1 to X16 denote independently of one another halogen, sulfonic acid, hydrogen or an alkyl residue with 1-20 C atoms in which the alkyl residue can be substituted with one or several halogen or sulfonic acid residues; R1 and R2 are either identical or different and denote either hydrogen, alkyl with 1-20 C atoms, polyoxyhydrocarbyl units, phenyl or phenylalkyl with 1-3 carbon atoms in the alkyl chain in which the alkyl and/or phenyl residues can be substituted by one or several hydroxy, halogen, sulfonic acid, amino, carboxy or alkoxycarbonyl groups where alkoxy can have 1-4 carbon atoms, R1 contains at least one activatable group, R2 and X4 can be optionally linked together via a bridge composed of 0-2 C atoms.

Abstract: The present invention refers to a process for the preparation of an activated metallo-porphyrin derivative and to novel activated metallo-porphyrin derivatives obtainable by said process. Further, the present invention refers to conjugates of metallo-porphyrins with molecules having at least one primary amino group, especially biomolecules. The conjugates are used in a procedure for the detection of a biological substance, especially in an immunoassay or a nucleic acid hybridization assay.

Abstract: The invention is directed to the use of RNA or DNA polymerases having 3'-intrinsic editing activity (3'-IEA) in the presence or absence of a deactivating agent to remove a protecting group from the 3'-position of oligo- polyribo- or deoxyribonnucleotides. The use is connected with the incorporation of dNTPs into DNA templates in order to determine the concentration and/or sequence of said templates. In particular the use is concerned with an improved non gel-based sequencing method.

Abstract: The invention concerns a new method for the simultaneous sequencing of nucleic acids using numerous double-stranded DNA adaptors.