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The Structure-function Relationships in Drosophila Neurotactin Show That Cholinesterasic Domains May Have Adhesive Properties

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Journal EMBO J
Date 1996 Sep 16
PMID 8890157
Citations 18
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Abstract

Neurotactin (Nrt), a Drosophila transmembrane glycoprotein which is expressed in neuronal and epithelial tissues during embryonic and larval stages, exhibits heterophilic adhesive properties. The extracellular domain is composed of a catalytically inactive cholinesterase-like domain. A three-dimensional model deduced from the crystal structure of Torpedo acetylcholinesterase (AChE) has been constructed for Nrt and suggests that its extracellular domain is composed of two sub-domains organized around a gorge: an N-terminal region, whose three-dimensional structure is almost identical to that of Torpedo AChE, and a less conserved C-terminal region. By using truncated Nrt molecules and a homotypic cell aggregation assay which involves a soluble ligand activity, it has been possible to show that the adhesive function is localized in the N-terminal region of the extracellular domain comprised between His347 and His482. The C-terminal region of the protein can be removed without impairing Nrt adhesive properties, suggesting that the two sub-domains are structurally independent. Chimeric molecules in which the Nrt cholinesterase-like domain has been replaced by homologous domains from Drosophila AChE, Torpedo AChE or Drosophila glutactin (Glt), share similar adhesive properties. These properties may require the presence of Nrt cytoplasmic and transmembrane domains since authentic Drosophila AChE does not behave as an adhesive molecule when transfected in S2 cells.

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References
1.
Laemmli U . Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970; 227(5259):680-5. DOI: 10.1038/227680a0. View

2.
Auld V, Fetter R, Broadie K, Goodman C . Gliotactin, a novel transmembrane protein on peripheral glia, is required to form the blood-nerve barrier in Drosophila. Cell. 1995; 81(5):757-67. DOI: 10.1016/0092-8674(95)90537-5. View

3.
Di Lauro R, Obici S, Condliffe D, Ursini V, Musti A, Moscatelli C . The sequence of 967 amino acids at the carboxyl-end of rat thyroglobulin. Location and surroundings of two thyroxine-forming sites. Eur J Biochem. 1985; 148(1):7-11. DOI: 10.1111/j.1432-1033.1985.tb08799.x. View

4.
Cousin X, Hotelier T, Lievin P, Toutant J, Chatonnet A . A cholinesterase genes server (ESTHER): a database of cholinesterase-related sequences for multiple alignments, phylogenetic relationships, mutations and structural data retrieval. Nucleic Acids Res. 1996; 24(1):132-6. PMC: 145568. DOI: 10.1093/nar/24.1.132. View

5.
Thummel C, Boulet A, Lipshitz H . Vectors for Drosophila P-element-mediated transformation and tissue culture transfection. Gene. 1988; 74(2):445-56. DOI: 10.1016/0378-1119(88)90177-1. View