摘要:
The present invention involves a method for categorizing nucleic acid which comprises: producing a nucleic acid population by action of an endonuclease on double-stranded nucleic acid, such that each nucleic acid in the nucleic acid population has a double-stranded portion; contacting the nucleic acid population with one or more oligonucleotide sequences; and isolating nucleic acid which correctly hybridizes to an oligonucleotide sequence. In the method of the present invention, each oligonucleotide sequence has a pre-determined recognition sequence. Furthermore, the nucleic acid is categorized by its ability to correctly hybridize to oligonucleotide sequences having the recognition sequence, the recognition sequence being situated such that it recognizes a sequence in the double-stranded portion of the nucleic acid. The oligonucleotide sequence can comprise one or more different recognition sequences.
摘要:
The test elements are provided that are adapted to detect at least one analyte in a sample. At least some of the test elements are provided with a defect marking which contains information about defectiveness of the test elements. The test elements include at least one radiation-sensitive material. The test elements are exposed to at least one radiation, the radiation being adapted to induce marking in the form of at least one optically detectable change in the radiation-sensitive material.
摘要:
The present invention provides a compound having the following formula: N-L-M wherein N comprises one or more nucleic acid bases, L is either a direct bond between N and M or L comprises a linker moiety, and M comprises a mass marker comprising an aryl ether.
摘要:
A method for characterizing cDNA, which comprises: (a) cutting a sample comprising a population of one or more cDNAs or isolated fragments thereof, each having a strand complementary to the 3′ poly-A terminus of an mRNA and bearing a tail, with a first sampling endonuclease at a first sampling site of known displacement from a reference site proximal to the tail to generate from each cDNA or isolated fragment thereof a first and second sub-fragment, each comprising a sticky end sequence of predetermined length and unknown sequence, the first sub-fragment bearing the tail; (b) sorting either the first or second sub-fragments into sub-populations according to their sticky end sequence and recording the sticky end sequence of each sub-population as the first sticky end; (c) cutting the sub-fragments of each sub-population with a second sampling endonuclease, which is the same as or different from the first sampling endonuclease, at second sampling site of known displacement from the first sampling site to generate from each sub-fragment a further sub-fragment comprising a second sticky end sequence of predetermined length and unknown sequence; and (d) determining each second sticky end sequence; wherein the aggregate length of the first and second sticky end sequences of each sub-fragment is from 6 to 10; and wherein the sequences and relative positions of the reference site and first and second sticky ends are utilized to characterize said cDNA or cDNAs.
摘要:
A computer-implemented method for navigating between sections in a display space is furnished. The sections in the display space are each assigned to a particular location of the display space, and representatives are provided which are each assigned to a particular section in the display space using an unambiguous relation. The method for navigating includes the following steps: selecting at least one representative that is assigned to a particular section in the display space with the aid of the unambiguous relation; and navigating to the particular section in the display space with the aid of the unambiguous relation with the particular section in the display space.
摘要:
What is disclosed is a computer-implemented method for finding objects which are based on data structures, the method comprising the following steps: announcing a selection of objects; generating and/or invalidating a characterization of one object or several objects of the selection, with characterization being effected by means of an item of characterization information; calculating weights of the objects of the selection and/or of objects located in a vicinity of the characterized objects based on the characterization information, weights already calculated, and/or weights already stored; and modifying the selection and continuing the method from the first step until objects to be found are contained in the selection, until the method is interrupted, or until a given or calculated number of method steps has been carried out, with the possibility of terminating or interrupting the method after any one of the preceding steps.
摘要:
A method for identifying an antisense oligonucleotide capable of binding to a target mRNA, which comprises contacting the target mRNA with each member of an oligonucleotide library separately under hybridization conditions, removing unhybridized material and determining which member or members hybridize; wherein the oligonucleotide library comprises a plurality of distinct nucleotide sequences of a predetermined common length, and wherein each nucleotide sequence comprises a known sequence of 4 to 8 bases and all possible combinations of the known sequence are present in the library.