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XB-ART-50745
Int J Dev Biol January 1, 2015; 59 (4-6): 235-40.

Comparative expression analysis of pfdn6a and tcp1α during Xenopus development.

Marracci S , Martini D , Giannaccini M , Giudetti G , Dente L , Andreazzoli M .


Abstract
We recently identified pfdn6a and tcp1α (also known as cct-α) as genes coregulated by the transcription factor Rx1. The proteins encoded by these genes belong to two interacting complexes (Prefoldin and "chaperonin containing t-complex polypeptide 1"), which promote the folding of actin and tubulin and have more recently been reported to be involved in a variety of additional functions including cell cycle control and transcription regulation. However, little is known about the expression and function of these two genes during vertebrate development. To assess whether pfdn6a and tcp1α display a general coordinated expression during Xenopus development, we determined, by RT-PCR and in situ hybridization, the spatio-temporal expression pattern of pfnd6a, which was not previously described, and compared it to that of tcp1α, extending the analysis to stages not previously investigated for this gene. We detected maternal transcripts of pfnd6a in the animal hemisphere at early blastula stage. During gastrulation, pfdn6a was expressed in the involuting mesoderm and subsequently in the anterior and dorsal neural plate. At tailbud and tadpole stages, pfdn6a RNA was mainly detected in the forebrain, midbrain, eye vesicle, otic vesicle, branchial arches, and developing pronephros. The pfnd6a expression pattern largely overlaps with that of tcp1α indicating a spatio-temporal transcriptional coregulation of these genes in the majority of their expression sites, which is suggestive of a possible involvement in the same developmental events.

PubMed ID: 26009237
Article link: Int J Dev Biol


Species referenced: Xenopus laevis
Genes referenced: actl6a odc1 pcyt1a pfdn6 rax tcp1


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