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Mol. Cells 2010; 29(3): 239-244

Published online March 31, 2010

https://doi.org/10.1007/s10059-010-0022-2

© The Korean Society for Molecular and Cellular Biology

Proteomic Analysis of Time-Dependant Difference of Protein Expression Profile Changes during Neuronal Differentiation of Mouse Embryonic Stem Cells

Jung Hee Shim1,3, Sun A Cho1,3, Min Ji Seo1, Jung Hee Kim, Na Kyung Ryu1, Kyung Hyun Yoo,Moon Hee Yang1, Seyoon Kim2, Young Yil Bahk2,*, and Jong Hoon Park1,*

1Department of Biological science, Sookmyung Women’s University, Seoul 140-742, Korea, 2Present address: Protein Network Research Center, Yonsei University Seoul 120-749, Korea, 3These authors contributed equally to this work

Correspondence to : *Correspondence: parkjh@sookmyung.ac.kr (JHP); bahk12@empal.com (YYB)

Received: June 22, 2009; Accepted: November 24, 2009

Abstract

The study of ES cell-mediated neuronal differentiation allows elucidating the mechanism of neuronal develop-ment in spite of the complexity and the difficult accessibility. During the differentiation of embryonic stem cells into neuronal cell, the expression profiles in the level of protein were extensively investigated by proteomic analysis. These cells were analyzed for charges in proteome during the differentiation of ES cells by 2-dimensional electrophoresis (2-DE) and MALDI-TOF MS. Seven unique proteins were identified, some of which were differentially expressed at each stage. A complex system of neuronal differentiation can be acti-vated in cultured embryonic stem cells and our two di-mensional electrophoresis data should be useful for investigating some of the mechanism that regulates neu-ronal differentiation.

Keywords 2-DE, differentiation, ES cell, neuronal, proteomic analysis

Article

Research Article

Mol. Cells 2010; 29(3): 239-244

Published online March 31, 2010 https://doi.org/10.1007/s10059-010-0022-2

Copyright © The Korean Society for Molecular and Cellular Biology.

Proteomic Analysis of Time-Dependant Difference of Protein Expression Profile Changes during Neuronal Differentiation of Mouse Embryonic Stem Cells

Jung Hee Shim1,3, Sun A Cho1,3, Min Ji Seo1, Jung Hee Kim, Na Kyung Ryu1, Kyung Hyun Yoo,Moon Hee Yang1, Seyoon Kim2, Young Yil Bahk2,*, and Jong Hoon Park1,*

1Department of Biological science, Sookmyung Women’s University, Seoul 140-742, Korea, 2Present address: Protein Network Research Center, Yonsei University Seoul 120-749, Korea, 3These authors contributed equally to this work

Correspondence to:*Correspondence: parkjh@sookmyung.ac.kr (JHP); bahk12@empal.com (YYB)

Received: June 22, 2009; Accepted: November 24, 2009

Abstract

The study of ES cell-mediated neuronal differentiation allows elucidating the mechanism of neuronal develop-ment in spite of the complexity and the difficult accessibility. During the differentiation of embryonic stem cells into neuronal cell, the expression profiles in the level of protein were extensively investigated by proteomic analysis. These cells were analyzed for charges in proteome during the differentiation of ES cells by 2-dimensional electrophoresis (2-DE) and MALDI-TOF MS. Seven unique proteins were identified, some of which were differentially expressed at each stage. A complex system of neuronal differentiation can be acti-vated in cultured embryonic stem cells and our two di-mensional electrophoresis data should be useful for investigating some of the mechanism that regulates neu-ronal differentiation.

Keywords: 2-DE, differentiation, ES cell, neuronal, proteomic analysis

Mol. Cells
Sep 30, 2022 Vol.45 No.9, pp. 603~672
COVER PICTURE
The Target of Rapamycin Complex (TORC) is a central regulatory hub in eukaryotes, which is well conserved in diverse plant species, including tomato (Solanum lycopersicum). Inhibition of TORC genes (SlTOR, SlLST8, and SlRAPTOR) by VIGS (virus-induced gene silencing) results in early fruit ripening in tomato. The red/ orange tomatoes are early-ripened TORC-silenced fruits, while the green tomato is a control fruit. Top, left, control fruit (TRV2-myc); top, right, TRV2-SlLST8; bottom, left, TRV2-SlTOR; bottom, right, TRV2-SlRAPTOR(Choi et al., pp. 660-672).

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