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Rottbauer, W.* ; Saurin, A.J.* ; Lickert, H.* ; Shen, X.* ; Burns, C.G.* ; Wo, Z.G.* ; Kemler, R.* ; Kingston, R.* ; Wu, C.* ; Fishman, M.*

Reptin and pontin antagonistically regulate heart growth in zebrafish embryos.

Cell 111, 661-672 (2002)
PMC
Open Access Green as soon as Postprint is submitted to ZB.
Organ size is precisely regulated during development, but the control mechanisms remain obscure. We have isolated a mutation in zebrafish, liebeskummer (lik), which causes development of hyperplastic embryonic hearts. lik encodes Reptin, a component of a DNA-stimulated ATPase complex. The mutation activates ATPase activity of Reptin complexes and causes a cell-autonomous proliferation of cardiomyocytes to begin well after progenitors have fashioned the primitive heart tube. With regard to heart growth, beta-catenin and Pontin, a DNA-stimulated ATPase that is often part of complexes with Reptin, are in the same genetic pathways. Pontin reduction phenocopies the cardiac hyperplasia of the lik mutation. Thus, the Reptin/Pontin ratio serves to regulate heart growth during development, at least in part via the beta-catenin pathway.
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Publication type Article: Journal article
Document type Scientific Article
Language english
Publication Year 2002
HGF-reported in Year 0
ISSN (print) / ISBN 0092-8674
e-ISSN 1097-4172
Journal Cell
Quellenangaben Volume: 111, Issue: 5, Pages: 661-672 Article Number: , Supplement: ,
Publisher Cell Press
Publishing Place Cambridge, Mass.
Reviewing status Peer reviewed
Institute(s) Institute of Diabetes and Regeneration Research (IDR)
PubMed ID 12464178
Erfassungsdatum 2002-12-31
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