The developmental expression of two Xenopus laevis steel homologues, Xsl-1 and Xsl-2.
We have investigated the expression patterns of two Xenopus laevis genes with similarity to mouse steel (sl) using whole-mount in situ hybridization. Areas of overlapping expression include the epidermis, stomodeum, proctodeum, and otic placodes. Xsl-1 is specifically expressed in the pronephros, neural tube, gil arches, and a superficial region of the somite, while Xsl-2 is in the ganglion and facial nerve projecting to visceral arch 3, the mandibular arch, and the clefts of anterior somites. Thus, both transcripts exhibit partially overlapping expression patterns, but their tissue distribution differs significantly from that of sl expression in the mouse and chicken.
Martin
Benjamin L
BL
Division of Genetics and Development, Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720-3204, USA.
Harland
Richard M
RM
D000595:Amino Acid Sequence; D000818:Animals; D002645:Chickens; D004268:DNA-Binding Proteins / Q000378:metabolism*; D004625:Embryo, Nonmammalian / Q000378:metabolism; D004817:Epidermis / Q000196:embryology / Q000378:metabolism; D018507:Gene Expression Regulation, Developmental; D017403:In Situ Hybridization; D051379:Mice; D008969:Molecular Sequence Data; D009928:Organ Specificity; D017386:Sequence Homology, Amino Acid; D019170:Somites / Q000378:metabolism; D029867:Xenopus Proteins / Q000378:metabolism*; D014982:Xenopus laevis / Q000196:embryology / Q000378:metabolism*
D004268:DNA-Binding Proteins; C078734:MEF2A protein, Xenopus; C078733:MEF2D protein, Xenopus; D029867:Xenopus Proteins