摘要:
Nucleotide analogs, modified by the attachment at hydrogen bonding positions of linker groups, that is, the 6-position of adenine, 4-position of cytosine, and 2-position of guanine, are prepared. Such analogs, alone or with reporter groups attached (Figure 1), may be incorporated into DNA probes which effectively hybridize adenine to target DNA. For example, Figure 1 shows adenine and cytosine analogs attached to a biotin reporter group.
摘要:
An amplification procedure is performed on a first sample in which one or more of the four normal ribonucleoside triphosphates(rNTPs) or deoxyribonucleoside triphosphates (dNTPs) is replaced with an exo-sample nucleotide that is not present in nucleic acid to be amplified. After amplification, any contaminating amplified product that may be remaining is subjected to a physical, chemical, enzymatic, or biological treatment which renders nucleic acid containing the exo-sample nucleotide substantially unamplifiable. The treatment may be done as a separate step or it may be done in the presence of a second sample containing nucleic acid sequences to be amplified. The amplified nucleic acid sequences derived from the first sample which contaminate the second sample are not further substantially amplified during amplification of nucleic acid sequences of the second sample.
摘要:
A large number of fish species exhibit protease activity and are therefore unacceptable for preparing processed fish products such as surimi. The present invention is directed to a composition containing alpha-2-macroglobulin for inhibiting protease activity contained in the fish material during the preparation of a processed fish product. Thus, the invention provides suitable proteases inhibitors to treat a number of fish species which were previously unsuitable for preparing processed fish products such as surimi. The present invention also relates to a method of preparing a processed fish product comprising contacting the fish material with alpha-2-macroglobulin in an amount sufficient to neutralize or inhibit the protease contained in the fish material. In addition, the present invention is directed to a fish product prepared using the composition of this invention and to a fish product prepared according to the method of this invention.
摘要:
Production of lymphokine activated killer cells. The invention discloses a serum-free culture medium capable of producing such cells with high efficiency.
摘要:
Production de cellules destructrices activées par la lymphokine. L'invention concerne un milieu de culture sans sérum capable de produire de telles cellules avec un rendement élevé.
摘要:
An embodiment includes a chordal replacement system comprising: a pledget coupled to a first suture length and at least one of a first needle and a first ferrule; a second suture length coupled to the pledget and at least a second needle; and a third suture length coupled to the pledget and at least a third needle; wherein the second and third suture lengths are not monolithic with each other and do not constitute a single suture. Other embodiments are described herein.