A naphthyridine dimer that binds specifically to G-G mismatches has been used to induce hairpin formation in oligonucleotides immobilized onto chemically modified gold surfaces. Surface plasmon resonance (SPR) imaging measurements of DNA microarrays were used to demonstrate that binding of the naphthyridine dimer to G-G mismatches within the stem portion of an immobilized 42-mer oligonucleotide...

Tumours were induced by chemical carcinogens in chimaeric mice made by the amalgamation of two embryos each producing a different electrophoretic variant of the enzyme glucose phosphate isomerase. Although, in these chimaeras, the smallest samples of normal tissue that could be analysed almost invariably contained both isoenzymes, almost all the tumours contained only one. An analysis of the si...

A M, 110,000 glycoprotein, designated gpllO, isolated from the concanavalin A-Sepharose-binding protein fraction of the chemically induced BALB/c Meth A sarcoma by Mono Q fast protein liquid chromatography, has been shown to: (a) increase the resistance of these mice to growth of the Meth A sarcoma, but not the antigenically unrelated BALB/c (1-4 sarcoma, and (b) induce an antitumor cellular im...

Photo-chemically induced nuclear polarization yields to NMR signal-to-noise enhancement and can be tuned by chemical modification of one the radical-pair partners.