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. 1997 Dec;1(1):13-23.
doi: 10.1016/s1097-2765(00)80003-9.

The discoidin domain receptor tyrosine kinases are activated by collagen

W Vogel  1 , G D Gish, F Alves, T Pawson
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Free article

The discoidin domain receptor tyrosine kinases are activated by collagen

W Vogel et al. Mol Cell. 1997 Dec.
Free article

Abstract

Two mammalian receptor tyrosine kinases (DDR1 and DDR2) have extracellular domains closely related to a D. discoideum lectin, discoidin, required for cell aggregation. Here, we show that the mammalian DDR receptors bind and are activated by specific types of collagen. Stimulation of DDR receptor tyrosine kinase activity requires the native triple-helical structure of collagen and occurs over an extended period of time. Collagen activation of DDR1 induces phosphorylation of a docking site for the Shc phosphotyrosine binding domain, whose presence is controlled by alternative splicing. Activation of DDR2 by collagen results in the up-regulation of matrix metalloproteinase-1 expression. These results suggest that the discoidin-related DDR tyrosine kinases are novel collagen receptors with the potential to control cellular responses to the extracellular matrix.

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