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Native-type DHP-sensitive calcium channel currents are produced by cloned rat aortic smooth muscle and cardiac alpha 1 subunits expressed in Xenopus laevis oocytes and are regulated by alpha 2- and beta-subunits.

Publication ,  Journal Article
Itagaki, K; Koch, WJ; Bodi, I; Klöckner, U; Slish, DF; Schwartz, A
Published in: FEBS Lett
February 10, 1992

Native tissue-like L-type voltage-dependent calcium channels (L-VDCC's) were expressed by in vitro transcribed cRNA injection of rat aorta or rabbit cardiac alpha 1 subunit into Xenopus laevis oocytes. Co-injection of VSM-alpha 1 with the cloned skeletal muscle beta-subunit (SK-beta) of the L-type VDCC significantly increased the expressed peak current amplitude without significant changes in kinetics. Similar results were obtained by co-injection of cardiac alpha 1 (DSHT-alpha 1) the cloned skeletal alpha 2-subunit (SK-alpha 2) or with SK-beta. The oocytes co-expressing cRNA's retained L-type VDCC pharmacology.

Duke Scholars

Published In

FEBS Lett

DOI

ISSN

0014-5793

Publication Date

February 10, 1992

Volume

297

Issue

3

Start / End Page

221 / 225

Location

England

Related Subject Headings

  • Xenopus laevis
  • Rats
  • Rabbits
  • Oocytes
  • Myocardium
  • Muscle, Smooth, Vascular
  • Gene Expression Regulation
  • Female
  • Electric Conductivity
  • Dihydropyridines
 

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Itagaki, K., Koch, W. J., Bodi, I., Klöckner, U., Slish, D. F., & Schwartz, A. (1992). Native-type DHP-sensitive calcium channel currents are produced by cloned rat aortic smooth muscle and cardiac alpha 1 subunits expressed in Xenopus laevis oocytes and are regulated by alpha 2- and beta-subunits. FEBS Lett, 297(3), 221–225. https://doi.org/10.1016/0014-5793(92)80542-o
Itagaki, K., W. J. Koch, I. Bodi, U. Klöckner, D. F. Slish, and A. Schwartz. “Native-type DHP-sensitive calcium channel currents are produced by cloned rat aortic smooth muscle and cardiac alpha 1 subunits expressed in Xenopus laevis oocytes and are regulated by alpha 2- and beta-subunits.FEBS Lett 297, no. 3 (February 10, 1992): 221–25. https://doi.org/10.1016/0014-5793(92)80542-o.
Journal cover image

Published In

FEBS Lett

DOI

ISSN

0014-5793

Publication Date

February 10, 1992

Volume

297

Issue

3

Start / End Page

221 / 225

Location

England

Related Subject Headings

  • Xenopus laevis
  • Rats
  • Rabbits
  • Oocytes
  • Myocardium
  • Muscle, Smooth, Vascular
  • Gene Expression Regulation
  • Female
  • Electric Conductivity
  • Dihydropyridines