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. 1995 Mar 30;374(6521):425-30.
doi: 10.1038/374425a0.

Requirement for Lim1 in head-organizer function

W Shawlot  1 , R R Behringer
Affiliations

Requirement for Lim1 in head-organizer function

W Shawlot et al. Nature. .

Abstract

Lim1 is a homeobox gene expressed in the organizer region of mouse embryos. To investigate the role of Lim1 during embryogenesis, a targeted deletion of the Lim1 gene was generated in embryonic stem cells. Embryos homozygous for the null allele lacked anterior head structures but the remaining body axis developed normally. A partial secondary axis developed anteriorly in some mutant embryos. Lim1 is thus an essential regulator of the vertebrate head organizer.

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