Function
Intersectin (ITSN) is an endocytic multidomain scaffold protein in neurons and is important regulator of synaptic vescicles replenishment at hippocampal synapses. The replenishment is needed in order to sustain neurotransmission during periods of elevated activity. ITSN interacts with synapsin I through its SH3 domains[1].
Relevance
ITSN 2 might be a potential biomarker for discrimination of severe acute pancreatitis to improve the prognosis of patients[2]. Overexpression of ITSN 1 is implicated for human neurodegenerative diseases such as Down's syndrome and Alzheimer's disease[3].
Structural highlights
The 3D structure of the complex between the SH3 domains of ITSN 1 and FCHSD2 shows extensive contact surface composed mainly of hydrophobic interactions[4].
- ↑ . Correction for Gerth et al., Intersectin associates with synapsin and regulates its nanoscale localization and function. Proc Natl Acad Sci U S A. 2017 Dec 19;114(51):E11060. doi:, 10.1073/pnas.1720226115. Epub 2017 Dec 11. PMID:29229830 doi:https://dx.doi.org/10.1073/pnas.1720226115
- ↑ Li J, Bu X, Chen X, Xiong P, Chen Z, Yu L. Predictive value of long non-coding RNA intersectin 1-2 for occurrence and in-hospital mortality of severe acute pancreatitis. J Clin Lab Anal. 2019 Dec 27:e23170. doi: 10.1002/jcla.23170. PMID:31880027 doi:https://dx.doi.org/10.1002/jcla.23170
- ↑ Hunter MP, Nelson M, Kurzer M, Wang X, Kryscio RJ, Head E, Pinna G, O'Bryan JP. Intersectin 1 contributes to phenotypes in vivo: implications for Down's syndrome. Neuroreport. 2011 Oct 26;22(15):767-72. doi: 10.1097/WNR.0b013e32834ae348. PMID:21876463 doi:https://dx.doi.org/10.1097/WNR.0b013e32834ae348
- ↑ Almeida-Souza L, Frank RAW, Garcia-Nafria J, Colussi A, Gunawardana N, Johnson CM, Yu M, Howard G, Andrews B, Vallis Y, McMahon HT. A Flat BAR Protein Promotes Actin Polymerization at the Base of Clathrin-Coated Pits. Cell. 2018 Jun 4. pii: S0092-8674(18)30597-X. doi: 10.1016/j.cell.2018.05.020. PMID:29887380 doi:https://dx.doi.org/10.1016/j.cell.2018.05.020
