alexa Identification and Characterization of Membrane Proteins from Mouse Brain Tissue
ISSN: 0974-276X

Journal of Proteomics & Bioinformatics
Open Access

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Research Article

Identification and Characterization of Membrane Proteins from Mouse Brain Tissue

Nguyen Tien Dung, Do Huu Chi, Le Thi Bich Thao, Nguyen Thi Kim Dung, Nguyen Bich Nhi and Phan Van Chi*

Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Rd, hanoi, Vietnam

*Corresponding Author:
Phan Van Chi
Institute of Biotechnology (IBT)
Vietnam Academy of Science and Technology (VAST)
18 Hoang Quoc Viet Rd, hanoi, Vietnam
E-mail: [email protected]

Received Date: April 05, 2013; Accepted Date: June 26, 2013; Published Date: June 28, 2013

Citation: Dung NT, Chi DH, Bich Thao LT, Kim Dung NT, Nhi NB, et al. (2013) Identification and Characterization of Membrane Proteins from Mouse Brain Tissue. J Proteomics Bioinform 6: 142-147. doi: 10.4172/jpb.1000272

Copyright: © 2013 Dung NT, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Membrane proteins are attractive targets for proteomics research because of their vital roles in numerous processes of the cell including: cell adhesion, immune response, metabolism and signal transduction... At the start of proteomics research, two-dimensional gel electrophoresis (2D-PAGE) was routinely used to separate complex proteomic samples. However, this method faces difficulties in separating membrane proteins due to their hydrophobicity. In this study, mouse brain membrane fractions were prepared using carbonate extraction and ultracentrifugation. The separation and identification of the membrane proteins by using a gel-based approach in combination with two-dimensional nano liquid chromatography coupled online with tandem mass spectrometry (2DNanoLC-Q-TOF-MS/MS) were presented. In total, 298 identified membrane proteins from mouse brain tissues were verified and predicted by UniProt database, SOSUI and TMHMM algorithms. Among them, 129 (43.3%) proteins that have at least one transmembrane domain were predicted by SOSUI and TMHMM. Furthermore, the function, subcellular location and hydrophobicity value of the identified membrane proteins were also categorized.

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