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Zimmermannová O, Velázquez D, Papoušková K, Průša V, Radová V, Falson P, Sychrová H. The Hydrophilic C-terminus of Yeast Plasma-membrane Na +/H + Antiporters Impacts Their Ability to Transport K . J Mol Biol 2024; 436:168443. [PMID: 38211892 DOI: 10.1016/j.jmb.2024.168443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/18/2023] [Accepted: 01/06/2024] [Indexed: 01/13/2024]
Abstract
Yeast plasma-membrane Na+/H+ antiporters (Nha/Sod) ensure the optimal intracellular level of alkali-metal cations and protons in cells. They are predicted to consist of 13 transmembrane segments (TMSs) and a large hydrophilic C-terminal cytoplasmic part with seven conserved domains. The substrate specificity, specifically the ability to recognize and transport K+ cations in addition to Na+ and Li+, differs among homologs. In this work, we reveal that the composition of the C-terminus impacts the ability of antiporters to transport particular cations. In the osmotolerant yeast Zygosaccharomyces rouxii, the Sod2-22 antiporter only efficiently exports Na+ and Li+, but not K+. The introduction of a negative charge or removal of a positive charge in one of the C-terminal conserved regions (C3) enabled ZrSod2-22 to transport K+. The same mutations rescued the low level of activity and purely Li+ specificity of ZrSod2-22 with the A179T mutation in TMS6, suggesting a possible interaction between this TMS and the C-terminus. The truncation or replacement of the C-terminal part of ZrSod2-22 with the C-terminus of a K+-transporting Nha/Sod antiporter (Saccharomyces cerevisiae Nha1 or Z. rouxii Nha1) also resulted in an antiporter with the capacity to export K+. In addition, in ScNha1, the replacement of three positively charged arginine residues 539-541 in the C3 region with alanine caused its inability to provide cells with tolerance to Li+. All our results demonstrate that the physiological functions of yeast Nha/Sod antiporters, either in salt tolerance or in K+ homeostasis, depend on the composition of their C-terminal parts.
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Affiliation(s)
- Olga Zimmermannová
- Laboratory of Membrane Transport, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic.
| | - Diego Velázquez
- Laboratory of Membrane Transport, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic.
| | - Klára Papoušková
- Laboratory of Membrane Transport, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic.
| | - Vojtěch Průša
- Laboratory of Membrane Transport, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic.
| | - Viktorie Radová
- Laboratory of Membrane Transport, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic.
| | - Pierre Falson
- Drug Resistance Membrane Proteins Group, National Centre for Scientific Research and Lyon I University Laboratory n°5086, Institute of Biology and Chemistry of Proteins, Lyon, France.
| | - Hana Sychrová
- Laboratory of Membrane Transport, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic.
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Lagunas-Gomez D, Yañez-Dominguez C, Zavala-Padilla G, Barlowe C, Pantoja O. The C-terminus of the cargo receptor Erv14 affects COPII vesicle formation and cargo delivery. J Cell Sci 2023; 136:286926. [PMID: 36651113 PMCID: PMC10022740 DOI: 10.1242/jcs.260527] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 12/22/2022] [Indexed: 01/19/2023] Open
Abstract
The endoplasmic reticulum (ER) is the start site of the secretory pathway, where newly synthesized secreted and membrane proteins are packaged into COPII vesicles through direct interaction with the COPII coat or aided by specific cargo receptors. Little is known about how post-translational modification events regulate packaging of cargo into COPII vesicles. The Saccharomyces cerevisiae protein Erv14, also known as cornichon, belongs to a conserved family of cargo receptors required for the selection and ER export of transmembrane proteins. In this work, we show the importance of a phosphorylation consensus site (S134) at the C-terminus of Erv14. Mimicking phosphorylation of S134 (S134D) prevents the incorporation of Erv14 into COPII vesicles, delays cell growth, exacerbates growth of sec mutants, modifies ER structure and affects localization of several plasma membrane transporters. In contrast, the dephosphorylated mimic (S134A) had less deleterious effects, but still modifies ER structure and slows cell growth. Our results suggest that a possible cycle of phosphorylation and dephosphorylation is important for the correct functioning of Erv14.
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Affiliation(s)
- Daniel Lagunas-Gomez
- Centro de Investigación en Dinámica Celular, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, Cuernavaca, Morelos 62210, Mexico.,Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad 2001, Cuernavaca, Morelos 62210, México
| | - Carolina Yañez-Dominguez
- Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad 2001, Cuernavaca, Morelos 62210, México
| | - Guadalupe Zavala-Padilla
- Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad 2001, Cuernavaca, Morelos 62210, México
| | - Charles Barlowe
- Department of Biochemistry, Geisel School of Medicine, Dartmouth College, Hanover, NH 03755-3844, USA
| | - Omar Pantoja
- Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad 2001, Cuernavaca, Morelos 62210, México
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Zheng J, Yao L, Zeng X, Wang B, Pan L. ERV14 receptor impacts mycelial growth via its interactions with cell wall synthase and transporters in Aspergillus niger. Front Microbiol 2023; 14:1128462. [PMID: 37113235 PMCID: PMC10126429 DOI: 10.3389/fmicb.2023.1128462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/20/2023] [Indexed: 04/29/2023] Open
Abstract
Efficient protein secretion is closely correlated with vesicle sorting and packaging, especially with cargo receptor-mediated selective transport for ER exit. Even though Aspergillus niger is considered an industrially natural host for protein production due to its exceptional secretion capacity, the trafficking mechanism in the early secretory pathway remains a black box for us to explore. Here, we identified and characterized all putative ER cargo receptors of the three families in A. niger. We successfully constructed overexpression and deletion strains of each receptor and compared the colony morphology and protein secretion status of each strain. Among them, the deletion of Erv14 severely inhibited mycelial growth and secretion of extracellular proteins such as glucoamylase. To gain a comprehensive understanding of the proteins associated with Erv14, we developed a high-throughput method by combining yeast two-hybrid (Y2H) with next-generation sequencing (NGS) technology. We found Erv14 specifically interacted with transporters. Following further validation of the quantitative membrane proteome, we determined that Erv14 was associated with the transport of proteins involved in processes such as cell wall synthesis, lipid metabolism, and organic substrate metabolism.
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Affiliation(s)
- Junwei Zheng
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Linlin Yao
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Xu Zeng
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Bin Wang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
- Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, South China University of Technology, Guangzhou, China
- *Correspondence: Bin Wang, ; Li Pan,
| | - Li Pan
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
- Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, South China University of Technology, Guangzhou, China
- *Correspondence: Bin Wang, ; Li Pan,
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Sun F, Lv B, Zhang X, Wang C, Zhang L, Chen X, Liang Y, Chen L, Zou S, Dong H. The Endoplasmic Reticulum Cargo Receptor FgErv14 Regulates DON Production, Growth and Virulence in Fusarium graminearum. Life (Basel) 2022; 12:life12060799. [PMID: 35743830 PMCID: PMC9224835 DOI: 10.3390/life12060799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/14/2022] [Accepted: 05/25/2022] [Indexed: 11/16/2022] Open
Abstract
Fusarium graminearum is a plant filamentous pathogenic fungi and the predominant causal agent of Fusarium head blight (FHB) in cereals worldwide. The regulators of the secretory pathway contribute significantly to fungal mycotoxin synthesis, development, and virulence. However, their roles in these processes in F. graminearum remain poorly understood. Here, we identified and functionally characterized the endoplasmic reticulum (ER) cargo receptor FgErv14 in F. graminearum. Firstly, it was observed that FgErv14 is mainly localized in the ER. Then, we constructed the FgErv14 deletion mutant (ΔFgerv14) and found that the absence of the FgErv14 caused a serious reduction in vegetative growth, significant defects in asexual and sexual reproduction, and severely impaired virulence. Furthermore, we found that the ΔFgerv14 mutant exhibited a reduced expression of TRI genes and defective toxisome generation, both of which are critical for deoxynivalenol (DON) biosynthesis. Importantly, we found the green fluorescent protein (GFP)-tagged FgRud3 was dispersed in the cytoplasm, whereas GFP-FgSnc1-PEM was partially trapped in the late Golgi in ΔFgerv14 mutant. These results demonstrate that FgErv14 mediates anterograde ER-to-Golgi transport as well as late secretory Golgi-to-Plasma membrane transport and is necessary for DON biosynthesis, asexual and sexual reproduction, vegetative growth, and pathogenicity in F. graminearum.
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Affiliation(s)
- Fengjiang Sun
- Department of Plant Pathology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (F.S.); (X.Z.); (C.W.); (L.Z.); (X.C.); (Y.L.); (H.D.)
| | - Beibei Lv
- Key Laboratory of Agricultural Genetics and Breeding, Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China;
| | - Xuemeng Zhang
- Department of Plant Pathology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (F.S.); (X.Z.); (C.W.); (L.Z.); (X.C.); (Y.L.); (H.D.)
| | - Chenyu Wang
- Department of Plant Pathology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (F.S.); (X.Z.); (C.W.); (L.Z.); (X.C.); (Y.L.); (H.D.)
| | - Liyuan Zhang
- Department of Plant Pathology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (F.S.); (X.Z.); (C.W.); (L.Z.); (X.C.); (Y.L.); (H.D.)
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China
| | - Xiaochen Chen
- Department of Plant Pathology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (F.S.); (X.Z.); (C.W.); (L.Z.); (X.C.); (Y.L.); (H.D.)
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China
| | - Yuancun Liang
- Department of Plant Pathology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (F.S.); (X.Z.); (C.W.); (L.Z.); (X.C.); (Y.L.); (H.D.)
| | - Lei Chen
- Department of Plant Pathology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (F.S.); (X.Z.); (C.W.); (L.Z.); (X.C.); (Y.L.); (H.D.)
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China
- Correspondence: (L.C.); (S.Z.)
| | - Shenshen Zou
- Department of Plant Pathology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (F.S.); (X.Z.); (C.W.); (L.Z.); (X.C.); (Y.L.); (H.D.)
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China
- Correspondence: (L.C.); (S.Z.)
| | - Hansong Dong
- Department of Plant Pathology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (F.S.); (X.Z.); (C.W.); (L.Z.); (X.C.); (Y.L.); (H.D.)
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China
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Papouskova K, Moravcova M, Masrati G, Ben-Tal N, Sychrova H, Zimmermannova O. C5 conserved region of hydrophilic C-terminal part of Saccharomyces cerevisiae Nha1 antiporter determines its requirement of Erv14 COPII cargo receptor for plasma-membrane targeting. Mol Microbiol 2020; 115:41-57. [PMID: 32864748 DOI: 10.1111/mmi.14595] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/23/2020] [Accepted: 08/22/2020] [Indexed: 01/03/2023]
Abstract
Erv14, a conserved cargo receptor of COPII vesicles, helps the proper trafficking of many but not all transporters to the yeast plasma membrane, for example, three out of five alkali-metal-cation transporters in Saccharomyces cerevisiae. Among them, the Nha1 cation/proton antiporter, which participates in cell cation and pH homeostasis, is a large membrane protein (985 aa) possessing a long hydrophilic C-terminus (552 aa) containing six conserved regions (C1-C6) with unknown function. A short Nha1 version, lacking almost the entire C-terminus, still binds to Erv14 but does not need it to be targeted to the plasma membrane. Comparing the localization and function of ScNha1 variants shortened at its C-terminus in cells with or without Erv14 reveals that only ScNha1 versions possessing the complete C5 region are dependent on Erv14. In addition, our broad evolutionary conservation analysis of fungal Na+ /H+ antiporters identified new conserved regions in their C-termini, and our experiments newly show C5 and other, so far unknown, regions of the C-terminus, to be involved in the functionality and substrate specificity of ScNha1. Taken together, our results reveal that also relatively small hydrophilic parts of some yeast membrane proteins underlie their need to interact with the Erv14 cargo receptor.
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Affiliation(s)
- Klara Papouskova
- Laboratory of Membrane Transport, Institute of Physiology of the Czech Academy of Sciences, Prague 4, Czech Republic
| | - Michaela Moravcova
- Laboratory of Membrane Transport, Institute of Physiology of the Czech Academy of Sciences, Prague 4, Czech Republic
| | - Gal Masrati
- Department of Biochemistry and Molecular Biology, George S. Wise Faculty of Life Sciences, Tel-Aviv University, Tel-Aviv, Israel
| | - Nir Ben-Tal
- Department of Biochemistry and Molecular Biology, George S. Wise Faculty of Life Sciences, Tel-Aviv University, Tel-Aviv, Israel
| | - Hana Sychrova
- Laboratory of Membrane Transport, Institute of Physiology of the Czech Academy of Sciences, Prague 4, Czech Republic
| | - Olga Zimmermannova
- Laboratory of Membrane Transport, Institute of Physiology of the Czech Academy of Sciences, Prague 4, Czech Republic
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6
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Erv14 cargo receptor participates in regulation of plasma-membrane potential, intracellular pH and potassium homeostasis via its interaction with K+-specific transporters Trk1 and Tok1. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:1376-1388. [DOI: 10.1016/j.bbamcr.2019.05.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 05/21/2019] [Accepted: 05/23/2019] [Indexed: 12/31/2022]
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7
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Ariño J, Ramos J, Sychrova H. Monovalent cation transporters at the plasma membrane in yeasts. Yeast 2018; 36:177-193. [PMID: 30193006 DOI: 10.1002/yea.3355] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 08/24/2018] [Accepted: 08/29/2018] [Indexed: 01/08/2023] Open
Abstract
Maintenance of proper intracellular concentrations of monovalent cations, mainly sodium and potassium, is a requirement for survival of any cell. In the budding yeast Saccharomyces cerevisiae, monovalent cation homeostasis is determined by the active extrusion of protons through the Pma1 H+ -ATPase (reviewed in another chapter of this issue), the influx and efflux of these cations through the plasma membrane transporters (reviewed in this chapter), and the sequestration of toxic cations into the vacuoles. Here, we will describe the structure, function, and regulation of the plasma membrane transporters Trk1, Trk2, Tok1, Nha1, and Ena1, which play a key role in maintaining physiological intracellular concentrations of Na+ , K+ , and H+ , both under normal growth conditions and in response to stress.
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Affiliation(s)
- Joaquín Ariño
- Institut de Biotecnologia i Biomedicina and Departament de Bioquimica i Biologia Molecular, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - José Ramos
- Departamento de Microbiología, Universidad de Córdoba, Córdoba, Spain
| | - Hana Sychrova
- Department of Membrane Transport, Institute of Physiology Czech Academy of Sciences, Prague, Czech Republic
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Rosas-Santiago P, Lagunas-Gomez D, Yáñez-Domínguez C, Vera-Estrella R, Zimmermannová O, Sychrová H, Pantoja O. Plant and yeast cornichon possess a conserved acidic motif required for correct targeting of plasma membrane cargos. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2017; 1864:1809-1818. [DOI: 10.1016/j.bbamcr.2017.07.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 06/27/2017] [Accepted: 07/14/2017] [Indexed: 12/23/2022]
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