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1
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Santalla M, García A, Mattiazzi A, Valverde CA, Schiemann R, Paululat A, Hernández G, Meyer H, Ferrero P. Interplay between SERCA, 4E-BP, and eIF4E in the Drosophila heart. PLoS One 2022; 17:e0267156. [PMID: 35588119 PMCID: PMC9119464 DOI: 10.1371/journal.pone.0267156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 04/03/2022] [Indexed: 11/19/2022] Open
Abstract
Appropriate cardiac performance depends on a tightly controlled handling of Ca2+ in a broad range of species, from invertebrates to mammals. The role of the Ca2+ ATPase, SERCA, in Ca2+ handling is pivotal, and its activity is regulated, inter alia, by interacting with distinct proteins. Herein, we give evidence that 4E binding protein (4E-BP) is a novel regulator of SERCA activity in Drosophila melanogaster during cardiac function. Flies over-expressing 4E-BP showed improved cardiac performance in young individuals associated with incremented SERCA activity. Moreover, we demonstrate that SERCA interacts with translation initiation factors eIF4E-1, eIF4E-2 and eIF4E-4 in a yeast two-hybrid assay. The specific identification of eIF4E-4 in cardiac tissue leads us to propose that the interaction of elF4E-4 with SERCA may be the basis of the cardiac effects observed in 4E-BP over-expressing flies associated with incremented SERCA activity.
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Affiliation(s)
- Manuela Santalla
- Departamento de Ciencias Básicas y Experimentales, UNNOBA, Pergamino, Buenos Aires, Argentina
- Centro de Investigaciones Cardiovasculares ‘Dr. Horacio E. Cingolani’, CONICET-UNLP, La Plata, Buenos Aires, Argentina
| | - Alejandra García
- Translation and Cancer Laboratory, Unit of Biomedical Research on Cancer, National Institute of Cancer (Instituto Nacional de Cancerología, INCan), Mexico City, Mexico
| | - Alicia Mattiazzi
- Centro de Investigaciones Cardiovasculares ‘Dr. Horacio E. Cingolani’, CONICET-UNLP, La Plata, Buenos Aires, Argentina
| | - Carlos A. Valverde
- Centro de Investigaciones Cardiovasculares ‘Dr. Horacio E. Cingolani’, CONICET-UNLP, La Plata, Buenos Aires, Argentina
| | - Ronja Schiemann
- Department of Zoology & Developmental Biology, Osnabrück University, Osnabrück, Germany
| | - Achim Paululat
- Department of Zoology & Developmental Biology, Osnabrück University, Osnabrück, Germany
| | - Greco Hernández
- Translation and Cancer Laboratory, Unit of Biomedical Research on Cancer, National Institute of Cancer (Instituto Nacional de Cancerología, INCan), Mexico City, Mexico
| | - Heiko Meyer
- Department of Zoology & Developmental Biology, Osnabrück University, Osnabrück, Germany
- * E-mail: (PF); (HM)
| | - Paola Ferrero
- Departamento de Ciencias Básicas y Experimentales, UNNOBA, Pergamino, Buenos Aires, Argentina
- Centro de Investigaciones Cardiovasculares ‘Dr. Horacio E. Cingolani’, CONICET-UNLP, La Plata, Buenos Aires, Argentina
- * E-mail: (PF); (HM)
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2
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Wang Q, Zhuang J, Ni S, Luo H, Zheng K, Li X, Lan C, Zhao D, Bai Y, Jia B, Hu Z. Overexpressing CrePAPS Polyadenylate Activity Enhances Protein Translation and Accumulation in Chlamydomonas reinhardtii. Mar Drugs 2022; 20:276. [PMID: 35621927 PMCID: PMC9147819 DOI: 10.3390/md20050276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/15/2022] [Accepted: 04/15/2022] [Indexed: 02/01/2023] Open
Abstract
The alga Chlamydomonas reinhardtii is a potential platform for recombinant protein expression in the future due to various advantages. Dozens of C. reinhardtii strains producing genetically engineered recombinant therapeutic protein have been reported. However, owing to extremely low protein expression efficiency, none have been applied for industrial purposes. Improving protein expression efficiency at the molecular level is, therefore, a priority. The 3'-end poly(A) tail of mRNAs is strongly correlated with mRNA transcription and protein translation efficiency. In this study, we identified a canonical C. reinhardtii poly(A) polymerase (CrePAPS), verified its polyadenylate activity, generated a series of overexpressing transformants, and performed proteomic analysis. Proteomic results demonstrated that overexpressing CrePAPS promoted ribosomal assembly and enhanced protein accumulation. The accelerated translation was further verified by increased crude and dissolved protein content detected by Kjeldahl and bicinchoninic acid (BCA) assay approaches. The findings provide a novel direction in which to exploit photosynthetic green algae as a recombinant protein expression platform.
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Affiliation(s)
- Quan Wang
- Guangdong Technology Research Center for Marine Algal Bioengineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China; (Q.W.); (J.Z.); (S.N.); (H.L.); (K.Z.); (X.L.); (C.L.); (D.Z.); (Y.B.)
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Jieyi Zhuang
- Guangdong Technology Research Center for Marine Algal Bioengineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China; (Q.W.); (J.Z.); (S.N.); (H.L.); (K.Z.); (X.L.); (C.L.); (D.Z.); (Y.B.)
| | - Shuai Ni
- Guangdong Technology Research Center for Marine Algal Bioengineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China; (Q.W.); (J.Z.); (S.N.); (H.L.); (K.Z.); (X.L.); (C.L.); (D.Z.); (Y.B.)
| | - Haolin Luo
- Guangdong Technology Research Center for Marine Algal Bioengineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China; (Q.W.); (J.Z.); (S.N.); (H.L.); (K.Z.); (X.L.); (C.L.); (D.Z.); (Y.B.)
| | - Kaijie Zheng
- Guangdong Technology Research Center for Marine Algal Bioengineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China; (Q.W.); (J.Z.); (S.N.); (H.L.); (K.Z.); (X.L.); (C.L.); (D.Z.); (Y.B.)
| | - Xinyi Li
- Guangdong Technology Research Center for Marine Algal Bioengineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China; (Q.W.); (J.Z.); (S.N.); (H.L.); (K.Z.); (X.L.); (C.L.); (D.Z.); (Y.B.)
| | - Chengxiang Lan
- Guangdong Technology Research Center for Marine Algal Bioengineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China; (Q.W.); (J.Z.); (S.N.); (H.L.); (K.Z.); (X.L.); (C.L.); (D.Z.); (Y.B.)
| | - Di Zhao
- Guangdong Technology Research Center for Marine Algal Bioengineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China; (Q.W.); (J.Z.); (S.N.); (H.L.); (K.Z.); (X.L.); (C.L.); (D.Z.); (Y.B.)
| | - Yongsheng Bai
- Guangdong Technology Research Center for Marine Algal Bioengineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China; (Q.W.); (J.Z.); (S.N.); (H.L.); (K.Z.); (X.L.); (C.L.); (D.Z.); (Y.B.)
| | - Bin Jia
- Guangdong Technology Research Center for Marine Algal Bioengineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China; (Q.W.); (J.Z.); (S.N.); (H.L.); (K.Z.); (X.L.); (C.L.); (D.Z.); (Y.B.)
- Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen 518055, China
| | - Zhangli Hu
- Guangdong Technology Research Center for Marine Algal Bioengineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China; (Q.W.); (J.Z.); (S.N.); (H.L.); (K.Z.); (X.L.); (C.L.); (D.Z.); (Y.B.)
- Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen 518055, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
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5
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Luo EC, Nathanson JL, Tan FE, Schwartz JL, Schmok JC, Shankar A, Markmiller S, Yee BA, Sathe S, Pratt GA, Scaletta DB, Ha Y, Hill DE, Aigner S, Yeo GW. Large-scale tethered function assays identify factors that regulate mRNA stability and translation. Nat Struct Mol Biol 2020; 27:989-1000. [PMID: 32807991 DOI: 10.1038/s41594-020-0477-6] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 07/02/2020] [Indexed: 02/07/2023]
Abstract
The molecular functions of the majority of RNA-binding proteins (RBPs) remain unclear, highlighting a major bottleneck to a full understanding of gene expression regulation. Here, we develop a plasmid resource of 690 human RBPs that we subject to luciferase-based 3'-untranslated-region tethered function assays to pinpoint RBPs that regulate RNA stability or translation. Enhanced UV-cross-linking and immunoprecipitation of these RBPs identifies thousands of endogenous mRNA targets that respond to changes in RBP level, recapitulating effects observed in tethered function assays. Among these RBPs, the ubiquitin-associated protein 2-like (UBAP2L) protein interacts with RNA via its RGG domain and cross-links to mRNA and rRNA. Fusion of UBAP2L to RNA-targeting CRISPR-Cas9 demonstrates programmable translational enhancement. Polysome profiling indicates that UBAP2L promotes translation of target mRNAs, particularly global regulators of translation. Our tethering survey allows rapid assignment of the molecular activity of proteins, such as UBAP2L, to specific steps of mRNA metabolism.
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Affiliation(s)
- En-Ching Luo
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Jason L Nathanson
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Frederick E Tan
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Joshua L Schwartz
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Jonathan C Schmok
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Archana Shankar
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Sebastian Markmiller
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Brian A Yee
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Shashank Sathe
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Gabriel A Pratt
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Duy B Scaletta
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Yuanchi Ha
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - David E Hill
- Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Boston, MA, USA
| | - Stefan Aigner
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA.,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA.,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Gene W Yeo
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA. .,Stem Cell Program, University of California, San Diego, La Jolla, CA, USA. .,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA, USA.
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