Comparative expression of the mouse Sox1, Sox2 and Sox3 genes from pre-gastrulation to early somite stages

Mech Dev. 1999 Aug;86(1-2):197-201. doi: 10.1016/s0925-4773(99)00116-1.


Whole mount in situ hybridisation was used to study the embryonic expression of the mouse HMG box-containing genes Sox1, Sox2 and Sox3 between 6.5 and 9.0 days post coitum (dpc). Sox2 and Sox3 are expressed in the epiblast and extraembryonic ectoderm of the egg cylinder, becoming restricted to the prospective neural plate and chorion at the onset of gastrulation. Sox3 is upregulated in the posterior ectoderm during late streak and neural plate stages and is concomitantly downregulated in the chorion. Sox1 transcripts are first detected in the neural fold ectoderm at the headfold stage. During early somitogenesis, all three genes are expressed in the neuroectoderm, and Sox2 and Sox3 are also expressed in the primitive streak ectoderm, gut endoderm and prospective sensory placodes.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Central Nervous System / embryology
  • DNA-Binding Proteins / genetics*
  • DNA-Binding Proteins / metabolism
  • Ectoderm
  • Embryo, Mammalian / physiology
  • Gastrula
  • Gene Expression Regulation, Developmental*
  • HMGB Proteins
  • High Mobility Group Proteins / genetics*
  • High Mobility Group Proteins / metabolism
  • Mice
  • Nuclear Proteins / genetics*
  • Nuclear Proteins / metabolism
  • Rhombencephalon / embryology
  • SOXB1 Transcription Factors
  • Transcription Factors


  • DNA-Binding Proteins
  • HMGB Proteins
  • High Mobility Group Proteins
  • Nuclear Proteins
  • SOXB1 Transcription Factors
  • Sox1 protein, mouse
  • Sox2 protein, mouse
  • Sox3 protein, mouse
  • Transcription Factors