NDLI: A Drosophila G-protein alpha subunit, Gf alpha, expressed in a spatially and temporally restricted pattern during Drosophila development.

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A Drosophila G-protein alpha subunit, Gf alpha, expressed in a spatially and temporally restricted pattern during Drosophila development.

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A Drosophila G-protein alpha subunit, Gf alpha, expressed in a spatially and temporally restricted pattern during Drosophila development.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Quan, F. Forte, M. Wolfgang, W. J.
Description	Author Affiliation: Quan F ( Vollum Institute for Advanced Biomedical Research, Oregon Health Sciences University, Portland 97201.);
Abstract	Heterotrimeric guanine nucleotide binding proteins (G proteins) couple receptors for extracellular signals to intracellular second messenger-generating systems. Previous studies have shown that G-protein alpha subunits (G alpha) are expressed in a spatially and temporally restricted manner during Drosophila embryogenesis and, thus, may be responsible for mediating developmental interactions. We have used the polymerase chain reaction to search for specific G alpha subunits that function primarily during development and not in the adult fly. Using poly(A)+ RNA isolated from early pupae (day 1), we have isolated a cDNA coding for a fly G alpha subunit, designated Gf alpha. This subunit is 30-38% identical to previously described vertebrate and Drosophila G alpha subunits and appears to define an additional family of G alpha proteins. Gf alpha transcripts are expressed primarily during embryonic, larval, and early pupal stages and only at low levels in adult flies. In situ hybridization studies indicate that Gf alpha transcripts are expressed maternally and later during embryogenesis primarily in the developing midgut and transiently in the amnioserosa. The Gf alpha gene has been characterized and mapped to position 73B of the Drosophila genome.
ISSN	00278424
e-ISSN	10916490
Journal	Proceedings of the National Academy of Sciences of the United States of America
Issue Number	9
Volume Number	90
Language	English
Publisher	National Academy of Sciences
Publisher Date	1993-06-01
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Drosophila Physiology GTP-Binding Proteins Genetics Amino Acid Sequence Animals Blotting, Northern Cloning, Molecular Embryology Embryo, Nonmammalian Gene Expression Regulation Larva Macromolecular Substances Molecular Sequence Data Oligodeoxyribonucleotides Polymerase Chain Reaction Pupa RNA Isolation & Purification RNA, Messenger Restriction Mapping Sequence Homology, Amino Acid Transcription, Genetic Vertebrates Comparative Study Multidisciplinary
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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