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. 1992 Jul 1;89(13):6030–6034. doi: 10.1073/pnas.89.13.6030

Molecular cloning of a Drosophila diacylglycerol kinase gene that is expressed in the nervous system and muscle.

I Masai 1, T Hosoya 1, S Kojima 1, Y Hotta 1
PMCID: PMC402132  PMID: 1321433

Abstract

We have isolated a Drosophila melanogaster diacylglycerol kinase (DGK, EC 2.7.1.107) homologue by using a porcine DGK cDNA probe and we have characterized its structure and expression. The DGK cDNA has a single open reading frame that encodes 791 amino acids. The Drosophila and porcine DGKs share a similar carboxyl-terminal region, a putative catalytic domain, which is divided into two separate domains in Drosophila. The DGK gene was mapped to the cytogenetic position 43F1, and its DGK mRNA is abundant both in embryo and in adult fly. By in situ hybridization to sections of adult flies, we demonstrated that the mRNA is present predominantly in the nervous system and muscles, including compound eyes, brain cortex, fibrillar muscle, and tubular muscle. In a 10- to 11-hr embryo, the DGK gene is expressed abundantly in a limited number of cells in the procephalic region and in the ventral nerve cord. The pattern of temporal and spatial expression suggests that the DGK protein has an important function in the adult nervous system and muscle and during the development of the embryonic nervous system.

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Selected References

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