Larger Image ckap4 gene expression in Xenopus laevis embryo via in situ hybridization, NF stage 29 & 30, lateral view, anterior left. Image copyrighted by Pollet, Nicolas Copyright © CNRS UMR 8080, Nicolas Pollet Image published in: AxelDB (Image Pages), AXELDB Database Gene Synonyms Species Stage(s) Tissue ckap4.L X. laevis Throughout NF stage 29 and 30 brain spinal cord eye otic vesicle epidermis notochord somite pharyngeal arch proctodeum cloaca ectoderm fin neural crest stomodeal-hypophyseal primordium midbrain paraxial mesoderm posterior neural tube neuroectoderm Image source: Large scale screen Permanent Image Page Printer Friendly View XB-IMG-30619