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Mech Dev 2001 Apr 01;1021-2:243-6. doi: 10.1016/s0925-4773(01)00295-7.
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Tissue-specific expression of an Ornithine decarboxylase paralogue, XODC2, in Xenopus laevis.

Ornithine decarboxylase (ODC) is involved in the biosynthesis of polyamines and hence has been found in almost all types of cells studied. Therefore it is frequently used as internal standard. We isolated a cDNA, XODC2, which is a paralogue to ubiquitous ODC and expressed in a spatial and temporal manner during the early embryogenesis of Xenopus laevis. Expression of XODC2was first detected at the animal pole at stage 9. During neurula stages the signals were found both in the extreme anterior and posterior part of the dorsal body axis. In tailbud stages the expression is further shifted to both the tail and head areas and gradually restricted to distinct tissues: forebrain, inner layer of epidermis of the head area, stomodeal-hypophyseal anlage, frontal gland, ear vesicle, branchial arches, the front tip of neural tube and proctodeum. In addition, signals were also found in the inner layer of epidermis underneath the cement gland during early tailbud stages while in later tailbud stages signals were detected at the apical zone of the cement gland. Comparative studies indeed could confirm that XODC1 in contrast to XODC2 is expressed ubiquitously throughout the whole embryos during early development of Xenopus laevis.

PubMed ID: 11287202
Article link: Mech Dev

Species referenced: Xenopus laevis
Genes referenced: azin2 odc1 pc.1

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