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A genome-wide survey of human thioredoxin and glutaredoxin family pseudogenes
Department of Biosciences at Novum, Center for Biotechnology, Karolinska Institute, Huddinge, Sweden.
Department of Cell and Molecular Biology, Karolinska Institute, Stockholm, Sweden.
University of Córdoba, Spain.
Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden.
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2001 (English)In: Human Genetics, ISSN 0340-6717, E-ISSN 1432-1203, Vol. 109, no 4, 429-439 p.Article in journal (Refereed) Published
Abstract [en]

The thioredoxin/glutaredoxin family consists of small heat-stable proteins that have a highly conserved CXXC active site and that participate in the regulation of many redox reactions. We have searched the human genome sequence to find putative pseudogenes (non-functional copies of protein-coding genes) for all known members of this family. This survey has resulted in the identification of seven processed pseudogenes for human Trx1 and two more for human Grx1. No evidence for the presence of processed pseudogenes has been found for the remaining members of this family. In addition, we have been unable to detect any non-processed pseudogenes derived from any member of the family in the human genome. The seven thioredoxin pseudogenes can be divided into two groups: Trx1-psi2, -psi3, -psi4, -psi5 and -psi6 arose from the functional ancestor, whereas Trx1-psi1 and -psi7 originated from Trx1-psi2 and -psi6, respectively. In all cases, the pseudogenes originated after the human/rodent radiation as shown by phylogenetic analysis. This is also the case for Grx1-psi1 and Grx1-psi2, which are placed between rodent and human sequences in the phylogenetic tree. Our study provides a molecular record of the recent evolution of these two genes in the hominid lineage.

Place, publisher, year, edition, pages
Springer, 2001. Vol. 109, no 4, 429-439 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-98817DOI: 10.1007/s004390100597PubMedID: 11702225OAI: diva2:655957
Available from: 2013-10-14 Created: 2013-10-14 Last updated: 2013-10-21Bibliographically approved

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Spyrou, Giannis
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