Tyro3 carboxyl terminal region confers stability and contains the autophosphorylation sites

Tyro3, a member of TAM receptor tyrosine kinase family has been suggested to be autophosphorylated upon activation. In the current study we mapped the autophosphorylation sites of murine Tyro3 to tyrosine 723 and 756, with K540 being required for its kinase activity. Knockdown of Axl significantly d...

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Main Authors: Shao, Hanshuang, Wells, Alan, Lauffenburger, Douglas A
Other Authors: Massachusetts Institute of Technology. Department of Biological Engineering
Format: Article
Published: Elsevier 2018
Online Access:http://hdl.handle.net/1721.1/117689
https://orcid.org/0000-0002-0050-989X
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author Shao, Hanshuang
Wells, Alan
Lauffenburger, Douglas A
author2 Massachusetts Institute of Technology. Department of Biological Engineering
author_facet Massachusetts Institute of Technology. Department of Biological Engineering
Shao, Hanshuang
Wells, Alan
Lauffenburger, Douglas A
author_sort Shao, Hanshuang
collection MIT
description Tyro3, a member of TAM receptor tyrosine kinase family has been suggested to be autophosphorylated upon activation. In the current study we mapped the autophosphorylation sites of murine Tyro3 to tyrosine 723 and 756, with K540 being required for its kinase activity. Knockdown of Axl significantly decreases the tyrosyl-phosphorylation of Tyro3 in fibroblasts NR6WT, suggesting an interaction among the TAM family members. Interestingly, the carboxyl terminal region of Tyro3 is required for its stability in cells with a minimal length of 1–778 amino acids which is not conserved in murine Axl, a member of TAM. These data suggest that the autophosphorylation sites of TAM RTK members are unique although they share high similarity in amino acids within their carboxyl kinase domain. Keywords: Tyro3 receptor tyrosine kinase; Autophosphorylation; Protein stability; TAM family kinases
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spelling mit-1721.1/1176892022-09-30T23:20:17Z Tyro3 carboxyl terminal region confers stability and contains the autophosphorylation sites Shao, Hanshuang Wells, Alan Lauffenburger, Douglas A Massachusetts Institute of Technology. Department of Biological Engineering Lauffenburger, Douglas A Tyro3, a member of TAM receptor tyrosine kinase family has been suggested to be autophosphorylated upon activation. In the current study we mapped the autophosphorylation sites of murine Tyro3 to tyrosine 723 and 756, with K540 being required for its kinase activity. Knockdown of Axl significantly decreases the tyrosyl-phosphorylation of Tyro3 in fibroblasts NR6WT, suggesting an interaction among the TAM family members. Interestingly, the carboxyl terminal region of Tyro3 is required for its stability in cells with a minimal length of 1–778 amino acids which is not conserved in murine Axl, a member of TAM. These data suggest that the autophosphorylation sites of TAM RTK members are unique although they share high similarity in amino acids within their carboxyl kinase domain. Keywords: Tyro3 receptor tyrosine kinase; Autophosphorylation; Protein stability; TAM family kinases National Institute of General Medical Sciences (U.S.) (Award GM69668) National Institute of General Medical Sciences (U.S.) (Award GM63569) 2018-09-10T18:49:24Z 2018-09-10T18:49:24Z 2017-06 2017-06 2018-09-07T19:22:43Z Article http://purl.org/eprint/type/JournalArticle 0006-291X 1090-2104 http://hdl.handle.net/1721.1/117689 Shao, Hanshuang et al. “Tyro3 Carboxyl Terminal Region Confers Stability and Contains the Autophosphorylation Sites.” Biochemical and Biophysical Research Communications 490, 3 (August 2017): 1074–1079 © 2017 Elsevier Inc https://orcid.org/0000-0002-0050-989X http://dx.doi.org/10.1016/J.BBRC.2017.06.168 Biochemical and Biophysical Research Communications Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier PMC
spellingShingle Shao, Hanshuang
Wells, Alan
Lauffenburger, Douglas A
Tyro3 carboxyl terminal region confers stability and contains the autophosphorylation sites
title Tyro3 carboxyl terminal region confers stability and contains the autophosphorylation sites
title_full Tyro3 carboxyl terminal region confers stability and contains the autophosphorylation sites
title_fullStr Tyro3 carboxyl terminal region confers stability and contains the autophosphorylation sites
title_full_unstemmed Tyro3 carboxyl terminal region confers stability and contains the autophosphorylation sites
title_short Tyro3 carboxyl terminal region confers stability and contains the autophosphorylation sites
title_sort tyro3 carboxyl terminal region confers stability and contains the autophosphorylation sites
url http://hdl.handle.net/1721.1/117689
https://orcid.org/0000-0002-0050-989X
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