The PIP2 binding mode of the C2 domains of rabphilin-3A
نویسندگان
چکیده
منابع مشابه
The PIP2 binding mode of the C2 domains of rabphilin-3A.
Phosphatidylinositol-4,5-bisphosphate (PIP2) is a key player in the neurotransmitter release process. Rabphilin-3A is a neuronal C2 domain tandem containing protein that is involved in this process. Both its C2 domains (C2A and C2B) are able to bind PIP2. The investigation of the interactions of the two C2 domains with the PIP2 headgroup IP3 (inositol-1,4,5-trisphosphate) by NMR showed that a w...
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The Ca(2+) binding properties of C2 domains are essential for the function of their host proteins. We present here the first crystal structures showing an unexpected Ca(2+) binding mode of the C2B domain of rabphilin-3A in atomic detail. Acidic residues from the linker region between the C2A and C2B domains of rabphilin-3A interact with the Ca(2+)-binding region of the C2B domain. Because of th...
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ژورنال
عنوان ژورنال: Protein Science
سال: 2008
ISSN: 0961-8368,1469-896X
DOI: 10.1110/ps.073326608