Essential role of mitochondrial Ca2+ uniporter in the generation of mitochondrial pH gradient and metabolism-secretion coupling in insulin-releasing cells

Xianglan Quan; Tuyet Thi Nguyen; Seong Kyung Choi; Shanhua Xu; Ranjan Das; Seung Kuy Cha; Nari Kim; Jin Han; Andreas Wiederkehr; Claes B. Wollheim; Kyu Sang Park

doi:10.1074/jbc.M114.632547

Essential role of mitochondrial Ca²⁺ uniporter in the generation of mitochondrial pH gradient and metabolism-secretion coupling in insulin-releasing cells

Xianglan Quan, Tuyet Thi Nguyen, Seong Kyung Choi, Shanhua Xu, Ranjan Das, Seung Kuy Cha, Nari Kim, Jin Han, Andreas Wiederkehr, Claes B. Wollheim, Kyu Sang Park

Physiology

Research output: Contribution to journal › Article

34 Citations (Scopus)

Abstract

Background: Mitochondrial Ca²⁺ uptake affects energy metabolism and insulin secretion. Results: Knockdown of mitochondrial Ca²⁺ uniporter decreases respiratory chain activity and mitochondrial pH gradient generation. Conclusion: Mitochondrial Ca²⁺ uptake via uniporter is essential for oxidative phosphorylation and metabolism-secretion coupling. Significance: The present study identifies mechanisms of action and bioenergetic consequences of mitochondrial Ca²⁺ transporters in insulin-releasing cells.

Original language	English
Pages (from-to)	4086-4096
Number of pages	11
Journal	Journal of Biological Chemistry
Volume	290
Issue number	7
DOIs	https://doi.org/10.1074/jbc.M114.632547
Publication status	Published - 2015 Feb 13

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All Science Journal Classification (ASJC) codes

Biochemistry
Molecular Biology
Cell Biology

Cite this

Quan, X., Nguyen, T. T., Choi, S. K., Xu, S., Das, R., Cha, S. K., Kim, N., Han, J., Wiederkehr, A., Wollheim, C. B., & Park, K. S. (2015). Essential role of mitochondrial Ca²⁺ uniporter in the generation of mitochondrial pH gradient and metabolism-secretion coupling in insulin-releasing cells. Journal of Biological Chemistry, 290(7), 4086-4096. https://doi.org/10.1074/jbc.M114.632547

Quan, Xianglan ; Nguyen, Tuyet Thi ; Choi, Seong Kyung ; Xu, Shanhua ; Das, Ranjan ; Cha, Seung Kuy ; Kim, Nari ; Han, Jin ; Wiederkehr, Andreas ; Wollheim, Claes B. ; Park, Kyu Sang. / Essential role of mitochondrial Ca²⁺ uniporter in the generation of mitochondrial pH gradient and metabolism-secretion coupling in insulin-releasing cells. In: Journal of Biological Chemistry. 2015 ; Vol. 290, No. 7. pp. 4086-4096.

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abstract = "Background: Mitochondrial Ca2+ uptake affects energy metabolism and insulin secretion. Results: Knockdown of mitochondrial Ca2+ uniporter decreases respiratory chain activity and mitochondrial pH gradient generation. Conclusion: Mitochondrial Ca2+ uptake via uniporter is essential for oxidative phosphorylation and metabolism-secretion coupling. Significance: The present study identifies mechanisms of action and bioenergetic consequences of mitochondrial Ca2+ transporters in insulin-releasing cells.",

author = "Xianglan Quan and Nguyen, {Tuyet Thi} and Choi, {Seong Kyung} and Shanhua Xu and Ranjan Das and Cha, {Seung Kuy} and Nari Kim and Jin Han and Andreas Wiederkehr and Wollheim, {Claes B.} and Park, {Kyu Sang}",

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Quan, X, Nguyen, TT, Choi, SK, Xu, S, Das, R, Cha, SK, Kim, N, Han, J, Wiederkehr, A, Wollheim, CB & Park, KS 2015, 'Essential role of mitochondrial Ca²⁺ uniporter in the generation of mitochondrial pH gradient and metabolism-secretion coupling in insulin-releasing cells', Journal of Biological Chemistry, vol. 290, no. 7, pp. 4086-4096. https://doi.org/10.1074/jbc.M114.632547

Essential role of mitochondrial Ca²⁺ uniporter in the generation of mitochondrial pH gradient and metabolism-secretion coupling in insulin-releasing cells. / Quan, Xianglan; Nguyen, Tuyet Thi; Choi, Seong Kyung; Xu, Shanhua; Das, Ranjan; Cha, Seung Kuy; Kim, Nari; Han, Jin; Wiederkehr, Andreas; Wollheim, Claes B.; Park, Kyu Sang.

In: Journal of Biological Chemistry, Vol. 290, No. 7, 13.02.2015, p. 4086-4096.

Research output: Contribution to journal › Article

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AU - Xu, Shanhua

AU - Das, Ranjan

AU - Cha, Seung Kuy

AU - Kim, Nari

AU - Han, Jin

AU - Wiederkehr, Andreas

AU - Wollheim, Claes B.

AU - Park, Kyu Sang

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10.1074/jbc.M114.632547