The third Conway group Co3 is one of the twenty-six sporadic finite simple groups. The cohomology of its Sylow 2-subgroup S is computed, an important step in calculating the mod 2 cohomology of Co3. The spectral sequence for the central extension of S is described and collapses at the sixth page. Generators are described in terms of the Evens norm or transfers from subgroups. The central quotie...

Precursor mRNAs were synthesized in vitro from a plasmid in which the early region 2 gene of adenovirus 2 is fused to an efficient bacteriophage promoter (Salmonella phage 6). The RNAs were purified and used as substrates for in vitro splicing in the presence of nuclear extracts prepared from MOPC-315 mouse myeloma cells. The in vitro splicing was accurate at the nucleotide level. The reaction ...

Using SP6 RNA polymerase and various synthetic DNA oligomers as templates (12-65 b), we have obtained efficient synthesis of RNA transcripts without the need for either primer or promoter. Gel analysis of transcripts made from templates of known size demonstrated a predominant single species, together with some minor bands. For a given template the major band had the same 5'-nucleotide as predi...

In an earlier work, we proved that MV polytopes parameterize both Lusztig’s canonical basis and the Mirković-Vilonen cycles on the Affine Grassmannian. Each of these sets has a crystal structure (due to Kashiwara-Lusztig on the canonical basis side and due to Braverman-Finkelberg-Gaitsgory on the MV cycles side). We show that these two crystal structures agree. As an application, we consider a ...

A single human tyrosine hydroxylase (HTH) gene has been shown previously to generate four species of mRNA by alternative splicing. The four different HTH mRNAs were independently synthesized in vitro, using the SP6 transcription system. Each of these mRNA species was able to direct the synthesis of an active form of TH following injection into Xenopus oocytes. Quantitation of synthesized HTH po...

S. Newey ([email protected]), T. Willebrand and F. Dahl, Dept of Animal Ecology, Swedish Univ. of Agricultural Sciences, SE-90183 Umeå, Sweden. SN and Adam A. Smith, The Game Conservancy Trust, Dalwhinnie, Inverness-shire, UK, PH19 1AF. SN and S. J. Thirgood, Macaulay Institute, Craigiebuckler, Aberdeen, UK, AB15 8QH. TW also at: Dept of Forestry and Wildlife Management, Hedmark Univ. Coll...