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Cited by 537

The DOI matches its Crossref record; 69 of the 69 references it cites were found in a registry or an index.

A Drosophila SH2-SH3 adaptor protein implicated in coupling the sevenless tyrosine kinase to an activator of Ras guanine nucleotide exchange, Sos

Open access
Olivier, J·1993·Cell

Abstract

A Drosophila gene (drk) encodes a widely expressed protein with a single SH2 domain and two flanking SH3 domains, which is homologous to the Sem-5 protein of C. elegans and mammalian GRB2. Genetic analysis suggests that drk function is essential for signaling by the sevenless receptor tyrosine kinase. Drk biological activity correlates with binding of its SH2 domain to activated receptor tyrosine kinases and concomitant localization of drk to the plasma membrane. In vitro, drk also binds directly to the C-terminal tail of Sos, a Ras guanine nucleotide-releasing protein (GNRP), which, like Ras1 and drk, is required for sevenless signaling. These results suggest that drk binds autophosphorylated receptor tyrosine kinases with its SH2 domain and the Sos GNRP through its SH3 domains, thereby coupling receptor tyrosine kinases to Ras activation. The conservation of these signaling proteins during evolution indicates that this is a general mechanism for linking tyrosine kinases to Ras.

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Metadata

Authors
Olivier, J.
Venue
Cell
Publisher
Elsevier BV
Published
1993-04-09
Volume
73
Issue
1
Pages
179-191
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2073146277
Cited by
537
References
69
FWCI
35.10
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: A Drosophila SH2-SH3 adaptor protein implicated in coupling the sevenless tyrosine kinase to an activator of Ras guanine nucleotide exchange, Sos. https://app.cochat.ai/papers/10.1016/0092-8674(93)90170-u
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Olivier, J. (1993). A Drosophila SH2-SH3 adaptor protein implicated in coupling the sevenless tyrosine kinase to an activator of Ras guanine nucleotide exchange, Sos. Cell. https://doi.org/10.1016/0092-8674(93)90170-u

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