title: Generation of mice harboring a Sox6 conditional null allele.
abstract: Sox6 belongs to the family of Sry-related HMG box transcription factors, which determine cell fate and differentiation in various lineages. Sox6 is expressed in several tissues, including cartilage, testis, neuronal, and erythropoietic tissues. Mice lacking Sox6 have revealed critical roles for Sox6 in several of these tissues, but their multiple defects and early lethality has limited studies in specific cell types and in postnatal mice. We show here that we have generated mice harboring a Sox6 conditional null allele (Sox6(fl+)) by flanking the second coding exon with loxP sites. This allele encodes wildtype Sox6 protein, is expressed normally, and is efficiently converted into a null allele (Sox6(fl-)) by Cre-mediated recombination in somatic and germ cells. Sox6(fl+/fl+) mice are indistinguishable from wildtype mice, and Sox6(fl-/fl-) mice from Sox6(-/-) mice. These Sox6 conditional null mice will thus be valuable for further uncovering the roles of Sox6 in various processes in vivo.
authors.affiliation: Department of Biomedical Engineering and Orthopaedic Research Center, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA.
authors.forename: Bogdan
authors.initials: B
authors.lastname: Dumitriu
authors.forename: Peter
authors.initials: P
authors.lastname: Dy
authors.forename: Patrick
authors.initials: P
authors.lastname: Smits
authors.forename: Véronique
authors.initials: V
authors.lastname: Lefebvre
mesh_terms: D000483:Alleles; D000818:Animals; D002678:Chimera / Q000235:genetics; D004268:DNA-Binding Proteins / Q000235:genetics*; D005091:Exons / Q000235:genetics; D005260:Female; D017353:Gene Deletion; D018390:Gene Targeting / Q000379:methods*; D006609:High Mobility Group Proteins / Q000235:genetics*; D019426:Integrases / Q000235:genetics; D008297:Male; D051379:Mice; D008810:Mice, Inbred C57BL; D011401:Promoter Regions, Genetic; D055755:SOXD Transcription Factors; D014157:Transcription Factors / Q000235:genetics*
chemical_list: D004268:DNA-Binding Proteins; D006609:High Mobility Group Proteins; D055755:SOXD Transcription Factors; C095939:Sox6 protein, mouse; D014157:Transcription Factors; C045073:Cre recombinase; D019426:Integrases