Biological actions of the hsp90-binding immunophilins FKBP51 and FKBP52
Immunophilins are a family of proteins whose signature domain is the peptidylprolyl-isomerase domain. High molecular weight immunophilins are characterized by the additional presence of tetratricopeptide-repeats (TPR) through which they bind to the 90-kDa heat-shock protein (Hsp90), and via this cha...
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todo:paper_2218273X_v9_n2_p_Zgajnar2023-10-03T16:40:42Z Biological actions of the hsp90-binding immunophilins FKBP51 and FKBP52 Zgajnar, N.R. De Leo, S.A. Lotufo, C.M. Erlejman, A.G. Pilipuk, G.P. Galigniana, M.D. Cell differentiation Dynein FKBP51 FKBP52 Hsp90 Neurodifferentiation NF-κB Telomerase Immunophilins are a family of proteins whose signature domain is the peptidylprolyl-isomerase domain. High molecular weight immunophilins are characterized by the additional presence of tetratricopeptide-repeats (TPR) through which they bind to the 90-kDa heat-shock protein (Hsp90), and via this chaperone, immunophilins contribute to the regulation of the biological functions of several client-proteins. Among these Hsp90-binding immunophilins, there are two highly homologous members named FKBP51 and FKBP52 (FK506-binding protein of 51-kDa and 52-kDa, respectively) that were first characterized as components of the Hsp90-based heterocomplex associated to steroid receptors. Afterwards, they emerged as likely contributors to a variety of other hormone-dependent diseases, stress-related pathologies, psychiatric disorders, cancer, and other syndromes characterized by misfolded proteins. The differential biological actions of these immunophilins have been assigned to the structurally similar, but functionally divergent enzymatic domain. Nonetheless, they also require the complementary input of the TPR domain, most likely due to their dependence with the association to Hsp90 as a functional unit. FKBP51 and FKBP52 regulate a variety of biological processes such as steroid receptor action, transcriptional activity, protein conformation, protein trafficking, cell differentiation, apoptosis, cancer progression, telomerase activity, cytoskeleton architecture, etc. In this article we discuss the biology of these events and some mechanistic aspects. © 2019 by the authors. Licensee MDPI, Basel, Switzerland. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_2218273X_v9_n2_p_Zgajnar |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Cell differentiation Dynein FKBP51 FKBP52 Hsp90 Neurodifferentiation NF-κB Telomerase |
spellingShingle |
Cell differentiation Dynein FKBP51 FKBP52 Hsp90 Neurodifferentiation NF-κB Telomerase Zgajnar, N.R. De Leo, S.A. Lotufo, C.M. Erlejman, A.G. Pilipuk, G.P. Galigniana, M.D. Biological actions of the hsp90-binding immunophilins FKBP51 and FKBP52 |
topic_facet |
Cell differentiation Dynein FKBP51 FKBP52 Hsp90 Neurodifferentiation NF-κB Telomerase |
description |
Immunophilins are a family of proteins whose signature domain is the peptidylprolyl-isomerase domain. High molecular weight immunophilins are characterized by the additional presence of tetratricopeptide-repeats (TPR) through which they bind to the 90-kDa heat-shock protein (Hsp90), and via this chaperone, immunophilins contribute to the regulation of the biological functions of several client-proteins. Among these Hsp90-binding immunophilins, there are two highly homologous members named FKBP51 and FKBP52 (FK506-binding protein of 51-kDa and 52-kDa, respectively) that were first characterized as components of the Hsp90-based heterocomplex associated to steroid receptors. Afterwards, they emerged as likely contributors to a variety of other hormone-dependent diseases, stress-related pathologies, psychiatric disorders, cancer, and other syndromes characterized by misfolded proteins. The differential biological actions of these immunophilins have been assigned to the structurally similar, but functionally divergent enzymatic domain. Nonetheless, they also require the complementary input of the TPR domain, most likely due to their dependence with the association to Hsp90 as a functional unit. FKBP51 and FKBP52 regulate a variety of biological processes such as steroid receptor action, transcriptional activity, protein conformation, protein trafficking, cell differentiation, apoptosis, cancer progression, telomerase activity, cytoskeleton architecture, etc. In this article we discuss the biology of these events and some mechanistic aspects. © 2019 by the authors. Licensee MDPI, Basel, Switzerland. |
format |
JOUR |
author |
Zgajnar, N.R. De Leo, S.A. Lotufo, C.M. Erlejman, A.G. Pilipuk, G.P. Galigniana, M.D. |
author_facet |
Zgajnar, N.R. De Leo, S.A. Lotufo, C.M. Erlejman, A.G. Pilipuk, G.P. Galigniana, M.D. |
author_sort |
Zgajnar, N.R. |
title |
Biological actions of the hsp90-binding immunophilins FKBP51 and FKBP52 |
title_short |
Biological actions of the hsp90-binding immunophilins FKBP51 and FKBP52 |
title_full |
Biological actions of the hsp90-binding immunophilins FKBP51 and FKBP52 |
title_fullStr |
Biological actions of the hsp90-binding immunophilins FKBP51 and FKBP52 |
title_full_unstemmed |
Biological actions of the hsp90-binding immunophilins FKBP51 and FKBP52 |
title_sort |
biological actions of the hsp90-binding immunophilins fkbp51 and fkbp52 |
url |
http://hdl.handle.net/20.500.12110/paper_2218273X_v9_n2_p_Zgajnar |
work_keys_str_mv |
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1807314797089259520 |