کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1928926 1050433 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Crystal structure of human Intersectin-2L C2 domain
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Crystal structure of human Intersectin-2L C2 domain
چکیده انگلیسی

Intersectin-2L (ITSN-2L) is a long isoform of ITSN family, which is a multimodule scaffolding protein functioning in membrane-associated molecular trafficking and signal transduction pathways. ITSN-2L possesses a carboxy-terminal extension encoding a Dbl homology domain (DH), a pleckstrin homology domain (PH) and a C2 domain, suggesting that it could act as a guanine nucleotide exchange factor for Rho-like GTPases. But the role of C2 domain is obscure in this process. Here we report the crystal structure of human ITSN-2L C2 domain at 1.56 Å resolution. The sequence and structural alignment of ITSN-2L C2 domain with other members of C2 domain protein family indicate its vital cellular roles in membrane trafficking, the generation of lipid-second messengers and activation of GTPases. Moreover, our data show the possible roles of ITSN-2L C2 domain in regulating the activity of Cdc42.


► This is the first structural and role information of human ITSN-2L C2 domain.
► The interaction of C2 domain with phospholipids provides specific distribution of ITSN-2L.
► C2 domain affect the DH–PH activity of ITSN-2L through the binding with Ca2+.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 431, Issue 1, 1 February 2013, Pages 76–80
نویسندگان
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