Abstract:
This invention relates to polynuclelotides encoding Glycoprotein B from the RFHV/KSHV subfamily of gamma herpes viruses, three members of which are characterized in detail. DNA extracts were obtained from Macaque nemestrina and Macaque mulatta monkeys affected with retroperitoneal fibromatosis (RF), and human AIDS patients affected with Kaposi's sarcoma (KS). The extracts were amplified using consensus-degenerate oligonucleotide probes designed from known protein and DNA sequences of gamma herpes viruses. The nucleotide sequences of a 319 base pair fragment are about 76 % identical between RFHV1 and KSHV, and about 60-63 % identical with the closest related gamma herpes viruses outside the RFHV/KSHV subfamily. Protein sequences encoded within these fragments are about 91 % identical between RFHV1 and KSHV, and
Abstract:
Methods of inhibiting or killing cancer cells are disclosed wherein compounds having an endoperoxide moiety that is reactive with heme are administered under conditions which enhance intracellular iron concentrations. Representative endoperoxide compounds include endoperoxide bearing sesquiterpene compounds such as artemisinin and its analogs, arteflene and its analogs, 1,2,4-trioxanes and 1,2,4,5-tetraoxanes. Intracellular iron concentrations may be enhanced by the administration of iron salts or complexes. The in vitro course of such treatment is demonstrated by the time response curve of molt-4 human leukemia cells incubated in halotransferin and dihydroartemisinin.
Abstract:
Methods for preparing DNA-binding proteins having altered binding specificity are disclosed. The binding specificity of a parent DNA-binding protein comprising first and second Cys2-His2 zinc fingers is altered by the addition of an additional zinc finger, wherein the altered specificity is a result of interactions between nucleotides in a target sequence and amino acid residues in each of the first, second and additional zinc fingers. The altered DNA-binding proteins are useful within methods for preparing polypeptides.
Abstract:
Compounds and compositions for eliciting or enhancing immune reactivity to HER-2/neu protein are disclosed. The compounds include polypeptides and nucleic acid molecules encoding such peptides. The compounds may be used for the prevention or treatment of malignancies in which the HER-2/neu oncogene is associated.
Abstract:
Methods and compositions related to hepatitis are disclosed. Using the methods of the present invention, candidate compounds may be screened for the ability to inhibit reverse transcriptase of hepatitis virus ("HV RT"). Active HV RT mutants may be detected by the disclosed methods. The present invention also discloses methods for screening for compounds that inhibit HV RT obtained from an individual patient.
Abstract:
The present invention provides two novel polypeptides, referred to as the "N" and "C" fragments of hedgehog, or N-terminal and C-terminal fragments, respectively, which are derived after specific cleavage at a G CF site recognized by the autoproteolytic domain in the native protein. Also provided are methods of use of the N and C fragments.
Abstract:
Methods for stimulating erythropoiesis using the hematopoietic protein thrombopoietin, optionally in combination with erythropoietin, are provided. The methods provided may be used to stimulate erythropoiesis in bone marrow and peripheral blood cells and in vitro and in vivo. In addition, methods for treatment of thrombocytopenia and anemia in patients are disclosed.
Abstract:
Engraftment of grafts in transplant recipients are enhanced by implanting CD34-positive hematopoietic cells obtained from the graft donor in the thymus of the transplant recipient. The methods enhance engraftment of both allogeneic and xenogeneic transplants. Methods are also provided for supplying a gene product of interest in a host mammal by implanting in the thymus of the host CD34-positive hematopoietic progenitor cells which encode the gene product of interest. The CD34-positive hematopoietic cells can be genetically engineered to produce the gene product of interest in the recipient host.
Abstract:
A continuous segment of chromosomal DNA from E. coli O157:H7, isolated on plasmid pSC(overlap) (ATCC No. 69648), which encodes an adhesin (SEQ ID NO:4) that mediates bacterial colonization of bovine intestines.
Abstract translation:来自大肠杆菌O157:H7的连续染色体DNA片段,分离于质粒pSC(重叠)(ATCC No.69648)上,其编码粘附素(SEQ ID NO:4),其介导牛肠细菌定植。