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 in Chromatin Decondensation and Expression of Thymosin  -4 Linked to Angiogenesis and Synaptic Plasticity
a Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Santiago de Compostela, Santiago, Galicia, Spain
Key Words: prothymosin  • thymosin  -4 • chromatin decondensation • histone H1 • angiogenesis • synaptic plasticity
Address for correspondence: Jaime Gómez-Márquez, Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Santiago de Compostela, 15782 Santiago, Spain. Voice: 34600940110; fax: 3481596904. bnjgm{at}usc.es
Prothymosin
(ProT) is an abundant highly acidic protein found in the nuclei of virtually all mammalian cells. The expression of this protein is increased in proliferating mammalian cells. However, the function of this molecule is still controversial. Here I present a model explaining the role of this protein in chromatin decondensation through its interaction with histone H1. -thymosins are a family of small actin-binding peptides widely distributed in eukaryotic cells. Here I will focus on thymosin -4, the most abundant member of this family. In particular, I will discuss its expression in the mammalian development of cardiovascular and nervous systems as well as its implications in neuronal plasticity.
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