220- and 130-kDa MLCKs have distinct tissue distributions and intracellular localization patterns

Emily K. Blue, Zoe M. Goeckeler, Yijun Jin, Ling Hou, Shelley A. Dixon, B. Herring, Robert B. Wysolmerski, Patricia Gallagher

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

To better understand the distinct functional roles of the 220- and 130-kDa forms of myosin light chain kinase (MLCK), expression and intracellular localization were determined during development and in adult mouse tissues. Northern blot, Western blot, and histochemical studies show that the 220-kDa MLCK is widely expressed during development as well as in several adult smooth muscle and nonmuscle tissues. The 130-kDa MLCK is highly expressed in all adult tissues examined and is also detectable during embryonic development. Colocalization studies examining the distribution of 130- and 220-kDa mouse MLCKs revealed that the 130-kDa MLCK colocalizes with nonmuscle myosin IIA but not with myosin IIB or F-actin. In contrast, the 220-kDa MLCK did not colocalize with either nonmuscle myosin II isoform but instead colocalizes with thick interconnected bundles of F-actin. These results suggest that in vivo, the physiological functions of the 220- and 130-kDa MLCKs are likely to be regulated by their intracellular trafficking and distribution.

Original languageEnglish
JournalAmerican Journal of Physiology - Cell Physiology
Volume282
Issue number3 51-3
StatePublished - 2002

Fingerprint

Myosin-Light-Chain Kinase
Tissue Distribution
Tissue
Actins
Nonmuscle Myosin Type IIB
Nonmuscle Myosin Type IIA
Myosin Type II
Northern Blotting
Embryonic Development
Smooth Muscle
Muscle
Protein Isoforms
Western Blotting
Muscles

Keywords

  • Actin
  • Contraction
  • Endothelium
  • Fibroblast
  • Myosin
  • Myosin light chain kinase
  • Nonmuscle myosin light chain kinase
  • Smooth muscle

ASJC Scopus subject areas

  • Clinical Biochemistry
  • Cell Biology
  • Physiology

Cite this

Blue, E. K., Goeckeler, Z. M., Jin, Y., Hou, L., Dixon, S. A., Herring, B., ... Gallagher, P. (2002). 220- and 130-kDa MLCKs have distinct tissue distributions and intracellular localization patterns. American Journal of Physiology - Cell Physiology, 282(3 51-3).

220- and 130-kDa MLCKs have distinct tissue distributions and intracellular localization patterns. / Blue, Emily K.; Goeckeler, Zoe M.; Jin, Yijun; Hou, Ling; Dixon, Shelley A.; Herring, B.; Wysolmerski, Robert B.; Gallagher, Patricia.

In: American Journal of Physiology - Cell Physiology, Vol. 282, No. 3 51-3, 2002.

Research output: Contribution to journalArticle

Blue, EK, Goeckeler, ZM, Jin, Y, Hou, L, Dixon, SA, Herring, B, Wysolmerski, RB & Gallagher, P 2002, '220- and 130-kDa MLCKs have distinct tissue distributions and intracellular localization patterns', American Journal of Physiology - Cell Physiology, vol. 282, no. 3 51-3.
Blue, Emily K. ; Goeckeler, Zoe M. ; Jin, Yijun ; Hou, Ling ; Dixon, Shelley A. ; Herring, B. ; Wysolmerski, Robert B. ; Gallagher, Patricia. / 220- and 130-kDa MLCKs have distinct tissue distributions and intracellular localization patterns. In: American Journal of Physiology - Cell Physiology. 2002 ; Vol. 282, No. 3 51-3.
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AU - Dixon, Shelley A.

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