Phenotypic analysis of deflated/Ints7 function in Drosophila development

Rutkowski, Rachael J., and Warren, William D. (2009) Phenotypic analysis of deflated/Ints7 function in Drosophila development. Developmental Dynamics, 238 (5). pp. 1131-1139.

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Abstract

The Drosophila gene deflated (CG18176; renamed after the pupal lethal abdominal phenotype of mutant individuals) is a member of a conserved gene family found in all multicellular organisms. The human orthologue of deflated (Ints7) encodes a subunit of the Integrator complex that associates with RNA polymerase II and has been implicated in snRNA processing. Since loss-of-function analyses of deflated have not yet been reported, we undertook to investigate deflated expression patterns and mutant phenotypes. deflated mRNA was detected at low levels in proliferating cells in postblastoderm embryos and GFP tagged protein is predominately nuclear. Generation and analysis of four mutant alleles revealed deflated is essential for normal development, as mutant individuals displayed pleiotropic defects affecting many stages of development, consistent with perturbation of cell signalling or cell proliferation. Our data demonstrate multiple roles in development for an Ints7 homologue and to demonstrate its requirement for normal cell signalling and proliferation.

Item ID: 8365
Item Type: Article (Refereed Research - C1)
Keywords: Drosophila; deflated; Ints7; developmental signalling; snRNA processing
ISSN: 1097-0177
Funders: Queensland Cancer Fund.
Date Deposited: 19 Feb 2010 04:46
FoR Codes: 06 BIOLOGICAL SCIENCES > 0601 Biochemistry and Cell Biology > 060103 Cell Development, Proliferation and Death @ 40%
06 BIOLOGICAL SCIENCES > 0604 Genetics > 060403 Developmental Genetics (incl Sex Determination) @ 40%
11 MEDICAL AND HEALTH SCIENCES > 1112 Oncology and Carcinogenesis > 111201 Cancer Cell Biology @ 20%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 80%
97 EXPANDING KNOWLEDGE > 970111 Expanding Knowledge in the Medical and Health Sciences @ 20%
Citation Count from Web of Science Web of Science 4
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