A cDNA fragment containing the gene encoding the glycoprotein of infectious hematopoietic necrosi... more A cDNA fragment containing the gene encoding the glycoprotein of infectious hematopoietic necrosis virus was inserted into Autographa californica baculovirus vectors under the control of the polyhedrin promoter. A 66-kilodalton protein, identical in size to the glycosylated glycoprotein of infectious hematopoietic necrosis virus, was expressed at high levels in Spodoptera frugiperda cells infected with the recombinant viruses. The expressed protein reacted with antiserum to the glycoprotein on Western blots (immunoblots).
An ecosystem-based management research partnership between the Hawai‘i Institute of Marine Biolog... more An ecosystem-based management research partnership between the Hawai‘i Institute of Marine Biology and Office of National Marine Sanctuaries, specifically with the Northwestern Hawaiian Islands Coral Reef Ecosystem Reserve and, later, the Papahānaumokuākea Marine National Monument, provides a case study to analyze integration of scientific research into management plans through collaborative communications. Ecosystem-based management seeks input from disparate stakeholders and requires effective communication systems for the public, science, and management partners that bypass differences in organizational culture and communication styles. Here, we examine a successful partnership within the framework of ecosystem-based management to survey and evaluate cultural differences, understand what facilitates collaborative communication, highlight factors that impede a successful partnership, and identify areas for improvement. Effective communication has been achieved through an analysis ...
The genomes of all eukaryotes contain multiple copies of DNA sequences that are related to sequen... more The genomes of all eukaryotes contain multiple copies of DNA sequences that are related to sequences found in infectious retroviruses (for review, see Coffin, 1984; Garfinkel, 1992). These elements are transmitted through the germ line as stable Mendelian genes, yet they exhibit structural and sequence similarities to infectious exogenous retroviruses. It is these similarities that have led investigators to speculate that endogenous retroviruses are remnants of prior infections with exogenous retroviral agents and, with evolutionary time, changes have occurred to make them no longer infectious or pathogenic. These speculations have been supported with experimental studies that show that the genomes of infectious, exogenous retroviruses can integrate into the host chromosome and be inherited through the germ line. Since retroviruses are thought to have evolved from retrotransposons (Temin, 1980, 1992), it is also possible that some endogenous retrovirus-related sequences are actually precursors of infectious forms. In either case, once they are part of the host genome, these proviruses can serve as a pool of genetic material that exogenous viruses can use to produce variants with altered host specificities and phenotypes; they can encode gene products that compete for or complement in trans retrovirus function(s); and they can, themselves, act as insertional mutagens to change the regulation of host genes.
Biochemical and Biophysical Research Communications, 1976
ABSTRACT The nucleotide sequences of the minus and plus strands of simian virus 40 DNA in a 17-ba... more ABSTRACT The nucleotide sequences of the minus and plus strands of simian virus 40 DNA in a 17-base-pair segment spanning the EcoRI restriction site have been identified. The minus-strand sequence is (5′) T-G-G-C-G-A-G-A-A-T-T-C-C-T-T-T-G and the plus-strand sequence is its complement: (5′) C-A-A-A-G-G-A-A-T-T-C-T-C-G-C-C-A.
A cDNA fragment containing the gene encoding the glycoprotein of infectious hematopoietic necrosi... more A cDNA fragment containing the gene encoding the glycoprotein of infectious hematopoietic necrosis virus was inserted into Autographa californica baculovirus vectors under the control of the polyhedrin promoter. A 66-kilodalton protein, identical in size to the glycosylated glycoprotein of infectious hematopoietic necrosis virus, was expressed at high levels in Spodoptera frugiperda cells infected with the recombinant viruses. The expressed protein reacted with antiserum to the glycoprotein on Western blots (immunoblots).
An ecosystem-based management research partnership between the Hawai‘i Institute of Marine Biolog... more An ecosystem-based management research partnership between the Hawai‘i Institute of Marine Biology and Office of National Marine Sanctuaries, specifically with the Northwestern Hawaiian Islands Coral Reef Ecosystem Reserve and, later, the Papahānaumokuākea Marine National Monument, provides a case study to analyze integration of scientific research into management plans through collaborative communications. Ecosystem-based management seeks input from disparate stakeholders and requires effective communication systems for the public, science, and management partners that bypass differences in organizational culture and communication styles. Here, we examine a successful partnership within the framework of ecosystem-based management to survey and evaluate cultural differences, understand what facilitates collaborative communication, highlight factors that impede a successful partnership, and identify areas for improvement. Effective communication has been achieved through an analysis ...
The genomes of all eukaryotes contain multiple copies of DNA sequences that are related to sequen... more The genomes of all eukaryotes contain multiple copies of DNA sequences that are related to sequences found in infectious retroviruses (for review, see Coffin, 1984; Garfinkel, 1992). These elements are transmitted through the germ line as stable Mendelian genes, yet they exhibit structural and sequence similarities to infectious exogenous retroviruses. It is these similarities that have led investigators to speculate that endogenous retroviruses are remnants of prior infections with exogenous retroviral agents and, with evolutionary time, changes have occurred to make them no longer infectious or pathogenic. These speculations have been supported with experimental studies that show that the genomes of infectious, exogenous retroviruses can integrate into the host chromosome and be inherited through the germ line. Since retroviruses are thought to have evolved from retrotransposons (Temin, 1980, 1992), it is also possible that some endogenous retrovirus-related sequences are actually precursors of infectious forms. In either case, once they are part of the host genome, these proviruses can serve as a pool of genetic material that exogenous viruses can use to produce variants with altered host specificities and phenotypes; they can encode gene products that compete for or complement in trans retrovirus function(s); and they can, themselves, act as insertional mutagens to change the regulation of host genes.
Biochemical and Biophysical Research Communications, 1976
ABSTRACT The nucleotide sequences of the minus and plus strands of simian virus 40 DNA in a 17-ba... more ABSTRACT The nucleotide sequences of the minus and plus strands of simian virus 40 DNA in a 17-base-pair segment spanning the EcoRI restriction site have been identified. The minus-strand sequence is (5′) T-G-G-C-G-A-G-A-A-T-T-C-C-T-T-T-G and the plus-strand sequence is its complement: (5′) C-A-A-A-G-G-A-A-T-T-C-T-C-G-C-C-A.
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Papers by Jo-Ann Leong