Journal of Muscle Research & Cell Motility

, Volume 21, Issue 4, pp 345–355

Human skeletal myosin heavy chain genes are tightly linked in the order embryonic-IIa-IId/x-IIb-perinatal-extraocular

  • Joseph B. Shrager
  • Philippe R. Desjardins
  • James M. Burkman
  • Stephane K. Konig
  • Douglas R. Stewart
  • Leonard Su
  • Megha C. Shah
  • Evelyn Bricklin
  • Manu Tewari
  • Rebecca Hoffman
  • Michael R. Rickels
  • Eric H. Jullian
  • Neal A. Rubinstein
  • Hansell H. Stedman
Article

DOI: 10.1023/A:1005635030494

Cite this article as:
Shrager, J.B., Desjardins, P.R., Burkman, J.M. et al. J Muscle Res Cell Motil (2000) 21: 345. doi:10.1023/A:1005635030494

Abstract

Myosin heavy chain (MyHC) is the major contractile protein of muscle. We report the first complete cosmid cloning and definitive physical map of the tandemly linked human skeletal MyHC genes at 17p13.1. The map provides new information on the order, size, and relative spacing of the genes, and it resolves uncertainties about the two fastest twitch isoforms. The physical order of the genes is demonstrated to contrast with the temporal order of their developmental expression. Furthermore, nucleotide sequence comparisons allow an approximation of the relative timing of five ancestral duplications that created distinct genes for the six isoforms. A firm foundation is provided for molecular analysis in patients with suspected primary skeletal myosinopathies and for detailed modelling of the hypervariable surface loops which dictate myosin's kinetic properties.

Copyright information

© Kluwer Academic Publishers 2000

Authors and Affiliations

  • Joseph B. Shrager
    • 1
  • Philippe R. Desjardins
    • 1
  • James M. Burkman
    • 1
  • Stephane K. Konig
    • 1
  • Douglas R. Stewart
    • 2
  • Leonard Su
    • 1
  • Megha C. Shah
    • 1
  • Evelyn Bricklin
    • 1
  • Manu Tewari
    • 3
  • Rebecca Hoffman
    • 2
  • Michael R. Rickels
    • 2
  • Eric H. Jullian
    • 4
  • Neal A. Rubinstein
    • 3
  • Hansell H. Stedman
    • 1
  1. 1.Department of Surgery, School of MedicineUniversity of PennsylvaniaPhiladelphiaUSA
  2. 2.Department of Medicine, School of MedicineUniversity of PennsylvaniaPhiladelphiaUSA
  3. 3.Department of Cell and Developmental Biology, School of MedicineUniversity of PennsylvaniaPhiladelphiaUSA
  4. 4.Laboratoire d'Histologie-Embryologie, Faculte de Medecine Cochin Port RoyaleUniversite Rene DescartesParisFrance