NDLI: A Central Nervous System-Dependent Intron-Embedded Gene Encodes a Novel Murine Fyn Binding Protein

Content Provider	PubMed Central
Author	Khalaf, Noureddine Ben Taha, Safa Bakhiet, Moiz Fathallah, M. Dahmani
Editor	Lee, Jung Weon
Copyright Year	2016
Abstract	The interplay between the nervous and immune systems is gradually being unraveled. We previously reported in the mouse the novel soluble immune system factor ISRAA, whose activation in the spleen is central nervous system-dependent. We also showed that ISRAA plays a role in modulating anti-infection immunity. Herein, we report the genomic description of the israa locus, along with some insights into the structure-function relationship of the protein. Our findings revealed that israa is nested within intron 6 of the mouse zmiz1 gene. Protein sequence analysis revealed a typical SH2 binding motif (Y102TEV), with Fyn being the most likely binding partner. Docking simulation showed a favorable conformation for the ISRAA-Fyn complex, with a specific binding mode for the binding of the YTEV motif to the SH2 domain. Experimental studies showed that in vitro, recombinant ISRAA is phosphorylated by Fyn at tyrosine 102. Cell transfection and pull-down experiments revealed Fyn as a binding partner of ISRAA in the EL4 mouse T-cell line. Indeed, we demonstrated that ISRAA downregulates T-cell activation and the phosphorylation of an activation tyrosine (Y416) of Src-family kinases in mouse splenocytes. Our observations highlight ISRAA as a novel Fyn binding protein that is likely to be involved in a signaling pathway driven by the nervous system.
Related Links	http://dx.doi.org/10.1371/journal.pone.0149612
Starting Page	149612
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	2
Volume Number	11
Language	English
Publisher	Public Library of Science
Publisher Date	2016-02-01
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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