Fred Hutchinson Cancer Research Center Human Biology Division Appointed: 1999 University of Washington School of Medicine Medicine Allergy and Infectious Diseases ProfessorAppointed: 2004 Fred Hutchinson Cancer Research Center Clinical Research Division Appointed: 1999 |  |
QualificationsM.D., Duke University, Medicine, 1978. Expertise and Research InterestsTranslational regulation of viral and cellular gene expression
Studies in an increasing number of systems demonstrate that translational events have a major impact on eukaryotic gene expression. Research in the Geballe lab aims to identify the cis-acting signals and trans-acting factors and to elucidate the mechanisms that regulate expression of viral and cellular genes at the translational level.
Human cytomegalovirus (HCMV), a member of the herpesvirus family, typically produces few if any symptoms in otherwise healthy individuals, but often causes life-threatening infections in newborns, solid organ and hematopoietic stem cell transplant recipients, and other immunocompromised patients. In addition to its medical importance, HCMV is also a useful model system for the study of translational regulation of eukaryotic gene expression. Host cells respond to viral infections by activating several antiviral pathways, including ones that are triggered by interferons and activated by double-stranded RNA (dsRNA), and that act by shutting off protein synthesis. To enable the continued protein synthesis that is necessary for replication, many viruses including HCMV have evolved means of inactivating these pathways. A genetic screen identified two HCMV genes that participate in maintaining translational capacity in the infected cell despite activation of these host responses. These genes bind to dsRNA through an unconventional dsRNA binding domain and a PKR binding domain, both of which are necessary for blocking the antiviral pathways. The protein also self-associate. These proteins also cause PKR relocalization to the nucleus, an unprecendented effect among viral anti-PKR protein. A related virus, Mouse CMV, has genes of similar function and comparisons between the human and mouse viruses will be useful in identifying conserved critical functions. Current efforts aim to elucidate the activities of the various domains of these genes and to identify other viral and cellular factors needed to maintain the robust protein synthetic capacity in CMV-infected cells. KeywordsCOS Keywords:Allergy, Bone Marrow Transplantation, Cell Biology, Clinical Research Or Studies, Gene Expression, HIV, Infectious Diseases Or Agents, Mental Retardation, Peptides, Proteins and Macromolecules, Virology.Additional Terms:Cytomegalovirus, Fragile X Mental Retardation (FMR1), HER-2/neu, Translation Termination, Translational Control, UL4, Upstream ORFs.Publications- Hakki, M. (2007) Cytomegalovirus, Sexually Transmitted Diseases, 4th Edition, McGraw Hill, In Press (bookchapter)
- Sachs, M.S. and A.P. Geballe (2006) Downstream control of upstream open reading frames, Genes and Development, 20 (8), 915-921
- Child, S.J., L.K. Hanson, C.E. Brown (2006) Double-stranded RNA-binding by a heterodimeric complex of murine cytomegalovirus m142 and m143 proteins, Journal of Virology, 80, 10173-10180
- Hakki, M. (2006) Binding and nuclear relocalization of PKR by human cytomegalovirus TRS1, Journal of Virology, 80, 11817-11826
- Spevak, C.C. (2006) . Her-2 upstream open reading frame effects on the use of downstream initiation codons, BBRC, 350, 834-841
- Hakki, M and A.P. Geballe (2005) Double-stranded RNA binding by human cytomegalovirus pTRS1, Journal of Virology, 79 (12), 7311-7318
- Child SJ, Hakki M, De Niro KL, Geballe AP, Evasion of cellular antiviral responses by human cytomegalovirus TRS1 and
IRS1, Journal of Virology, 78(1), 197-205, 2004
 - Janzen DM, Geballe AP, The effect of eukaryotic release factor depletion on translation
termination in human cell lines, Nucleic Acids Research, 32(15), 4491-502, 2004
 - Scott, J.D., J.A. Englund, D. Myerson, A.P. Geballe, Influenza pneumonia presenting as progressive focal infiltrates in a stem cell transplant recipient, Journal of Clinical Virology, 31(96), 99, 2004
- Janzen DM, Frolova L, Geballe AP, Inhibition of translation termination mediated by an interaction of eukaryotic release factor 1 with a nascent peptidyl-tRNA, Molecular and Cellular Biology, 22(24), 8562-8570, December 2002
- Sachs MS, Geballe AP, Biochemistry. Sense and sensitivity--controlling the ribosome, Science, 297(5588), 1820-1, September 2002
 - Child SJ, Jarrahian S, Harper VM, Geballe AP, Complementation of vaccinia virus lacking the double-stranded RNA-binding
protein gene E3L by human cytomegalovirus, Journal of Virology, 76(10), 4912-8, May 2002
 - Alderete JP, Child SJ, Geballe AP, Abundant early expression of gpUL4 from a human cytomegalovirus mutant lacking a repressive upstream open reading frame, Journal of Virology, 75(15), 7188-92, August 2001
 - Bar M, Shannon-Lowe C, Geballe AP, Differentiation of human cytomegalovirus genotypes in immunocompromised patients on the basis of UL4 gene polymorphisms, Journal of Infectious Diseases, 183(2), 218-225, 2001
 - Morris DR, Geballe AP, Upstream open reading frames as regulators of mRNA translation, Molecular and Cellular Biology, 20(23), 8635-42, December 2000
 - Landini, M.P., T. Lazzarotto, J. Xu, A.P. Geballe, E.S. Mocarski., Humoral immune response to proteins of human cytomegalovirus latency-associated transcripts, Biology of Blood and Marrow Transplantation, 6, 100-108, 2000
- Geballe, A.P., M.S. Sachs, eds., N. Sonenberg, J.W.B. Hershey, and M.B. Matthews, Translational control by upstream open reading frames, Translational Control of Gene Expression, 595-614, 2000
- Alderete JP, Jarrahian S, Geballe AP, Translational effects of mutations and polymorphisms in a repressive upstream open reading frame of the human cytomegalovirus UL4 gene, Journal of Virology, 73(10), 8330-7, October 1999
 - Child SJ, Miller MK, Geballe AP, Translational control by an upstream open reading frame in the HER-2/neu transcript, Journal of Biological Chemistry, 274(34), 24335-41, August 1999
 - Child SJ, Miller MK, Geballe AP, Cell type-dependent and -independent control of HER-2/neu translation, International Journal of Biochemistry and Cell Biology, 31(1), 201-13, Jan 1999
 - Vieira J, Schall TJ, Corey L, Geballe AP, Functional analysis of the human cytomegalovirus US28 gene by insertion mutagenesis with the green fluorescent protein gene, Journal of Virology, 72(10), 8158-65, October 1998
 - Cao J, Geballe AP, Ribosomal release without peptidyl tRNA hydrolysis at translation termination in a eukaryotic system, Rna, 4(2), 181-8, February 1998
 - Cao J, Geballe AP, Inhibition of nascent-peptide release at translation termination, Molecular and Cellular Biology, 16(12), 7109-14, December 1996
 - Harrington RD, Geballe AP, Human immunodeficiency virus type-1 susceptible whole cell and microcell
hybrids, Annals of Clinical and Laboratory Science, 26(6), 522-30, 1996
 - Cao J, Geballe AP, Coding sequence-dependent ribosomal arrest at termination of translation, Molecular and Cellular Biology, 16(2), 603-8, February 1996
 - Cao J, Geballe AP, Translational inhibition by a human cytomegalovirus upstream open reading
frame despite inefficient utilization of its AUG codon, Journal of Virology, 69(2), 1030-6, February 1995
 - Cao J, Geballe AP, Mutational analysis of the translational signal in the human
cytomegalovirus gpUL4 (gp48) transcript leader by retroviral
infection, Virology, 205(1), 151-60, November 1994
 - Geballe AP, Morris DR, Initiation codons within 5'-leaders of mRNAs as regulators of translation, Trends in Biochemical Sciences, 19(4), 159-64, April 1994
 - Harrington RD, Geballe AP, Cofactor requirement for human immunodeficiency virus type 1 entry into a
CD4-expressing human cell line, Journal of Virology, 67(10), 5939-47, October 1993
 - Degnin CR, Schleiss MR, Cao J, Geballe AP, Translational inhibition mediated by a short upstream open reading frame
in the human cytomegalovirus gpUL4 (gp48) transcript, Journal of Virology, 67(9), 5514-21, September 1993
 - Yoo BJ, Spaete RR, Geballe AP, Selby M, Houghton M, Han JH, 5' end-dependent translation initiation of hepatitis C viral RNA and the
presence of putative positive and negative translational control elements
within the 5' untranslated region, Virology, 191(2), 889-99, December 1992
 - Geballe AP, Gray MK, Variable inhibition of cell-free translation by HIV-1 transcript leader
sequences, Nucleic Acids Research, 20(16), 4291-7, August 1992
 - Schleiss MR, Degnin CR, Geballe AP, Translational control of human cytomegalovirus gp48 expression, Journal of Virology, 65(12), 6782-9, December 1991
 - Riddell SR, Rabin M, Geballe AP, Britt WJ, Greenberg PD, Class I MHC-restricted cytotoxic T lymphocyte recognition of cells
infected with human cytomegalovirus does not require endogenous viral gene
expression, Journal of Immunology (baltimore, Md. : 1950), 146(8), 2795-804, April 1991
 - Biegalke BJ, Geballe AP, Translational inhibition by cytomegalovirus transcript leaders, Virology, 177(2), 657-67, August 1990
 - Geballe AP, Mocarski ES, Translational control of cytomegalovirus gene expression is mediated by
upstream AUG codons, Journal of Virology, 62(9), 3334-40, September 1988
 - Geballe AP, Spaete RR, Mocarski ES, A cis-acting element within the 5' leader of a cytomegalovirus beta
transcript determines kinetic class, Cell, 46(6), 865-72, September 1986
 - Geballe AP, Leach FS, Mocarski ES, Regulation of cytomegalovirus late gene expression: gamma genes are
controlled by posttranscriptional events, Journal of Virology, 57(3), 864-74, March 1986
 - Geballe AP, Ventura P, Stowring L, Haase AT, Quantitative analysis of visna virus replication in vivo, Virology, 141(1), 148-54, February 1985
 - Haase AT, Walker D, Stowring L, Ventura P, Geballe A, Blum H, Brahic M, Goldberg R, O'Brien K, Detection of two viral genomes in single cells by double-label
hybridization in situ and color microradioautography, Science, 227(4683), 189-92, 1985
 - Haase AT, Gantz D, Blum H, Stowring L, Ventura P, Geballe A, Moyer B, Brahic M, Combined macroscopic and microscopic detection of viral genes in tissues, Virology, 140(1), 201-6, 1985
 - Higgins NP, Geballe AP, Cozzarelli NR, Addition of oligonucleotides to the 5'-terminus of DNA by T4 RNA ligase, Nucleic Acids Research, 6(3), 1013-24, 1979
 - Kreuzer KN, McEntee K, Geballe AP, Cozzarelli NR, Lambda transducing phages for the nalA gene of Escherichia coli and
conditional lethal nalA mutations, Molecular & General Genetics : Mgg, 167(2), 129-37, 1978
 - Higgins NP, Geballe AP, Snopek TJ, Sugino A, Cozzarelli NR, Bacteriophage T4 RNA ligase: preparation of a physically homogeneous,
nuclease-free enzyme from hyperproducing infected cells, Nucleic Acids Research, 4(9), 3175-86, 1977

Profile DetailsIndividual Expertise profile of Adam P. Geballe, Copyright Adam P. Geballe. © COS Expertise TM, 2008, ProQuest LLC All rights reserved. |