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Yang K, Feng Z, Pastor-Pareja JC. p24-Tango1 interactions ensure ER-Golgi interface stability and efficient transport. J Cell Biol 2024; 223:e202309045. [PMID: 38470362 PMCID: PMC10932740 DOI: 10.1083/jcb.202309045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 01/07/2024] [Accepted: 02/05/2024] [Indexed: 03/13/2024] Open
Abstract
The eukaryotic p24 family, consisting of α-, β-, γ- and δ-p24 subfamilies, has long been known to be involved in regulating secretion. Despite increasing interest in these proteins, fundamental questions remain about their role. Here, we systematically investigated Drosophila p24 proteins. We discovered that members of all four p24 subfamilies are required for general secretion and that their localizations between ER exit site (ERES) and Golgi are interdependent in an α→βδ→γ sequence. We also found that localization of p24 proteins and ERES determinant Tango1 requires interaction through their respective GOLD and SH3 lumenal domains, with Tango1 loss sending p24 proteins to the plasma membrane and vice versa. Finally, we show that p24 loss expands the COPII zone at ERES and increases the number of ER-Golgi vesicles, supporting a restrictive role of p24 proteins on vesicle budding for efficient transport. Our results reveal Tango1-p24 interplay as central to the generation of a stable ER-Golgi interface.
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Affiliation(s)
- Ke Yang
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Zhi Feng
- School of Life Sciences, Tsinghua University, Beijing, China
| | - José Carlos Pastor-Pareja
- School of Life Sciences, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
- Institute of Neurosciences, Consejo Superior de Investigaciones Científicas-Universidad Miguel Hernández, San Juan de Alicante, Spain
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2
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Bare Y, Matusek T, Vriz S, Deffieu MS, Thérond PP, Gaudin R. TMED10 mediates the loading of neosynthesised Sonic Hedgehog in COPII vesicles for efficient secretion and signalling. Cell Mol Life Sci 2023; 80:266. [PMID: 37624561 PMCID: PMC11072717 DOI: 10.1007/s00018-023-04918-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 07/24/2023] [Accepted: 08/09/2023] [Indexed: 08/26/2023]
Abstract
The morphogen Sonic Hedgehog (SHH) plays an important role in coordinating embryonic development. Short- and long-range SHH signalling occurs through a variety of membrane-associated and membrane-free forms. However, the molecular mechanisms that govern the early events of the trafficking of neosynthesised SHH in mammalian cells are still poorly understood. Here, we employed the retention using selective hooks (RUSH) system to show that newly-synthesised SHH is trafficked through the classical biosynthetic secretory pathway, using TMED10 as an endoplasmic reticulum (ER) cargo receptor for efficient ER-to-Golgi transport and Rab6 vesicles for Golgi-to-cell surface trafficking. TMED10 and SHH colocalized at ER exit sites (ERES), and TMED10 depletion significantly delays SHH loading onto ERES and subsequent exit leading to significant SHH release defects. Finally, we utilised the Drosophila wing imaginal disc model to demonstrate that the homologue of TMED10, Baiser (Bai), participates in Hedgehog (Hh) secretion and signalling in vivo. In conclusion, our work highlights the role of TMED10 in cargo-specific egress from the ER and sheds light on novel important partners of neosynthesised SHH secretion with potential impact on embryonic development.
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Affiliation(s)
- Yonis Bare
- Institut de Recherche en Infectiologie de Montpellier (IRIM) CNRS, 1919 Route de Mende, 34293, Montpellier, France
- Université de Montpellier, 34090, Montpellier, France
| | - Tamás Matusek
- Université Côte d'Azur, UMR7277 CNRS, Inserm 1091, Institut de Biologie de Valrose (iBV), Parc Valrose, Nice, France
| | - Sophie Vriz
- Laboratoire des Biomolécules (LBM), Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005, Paris, France
- Faculty of Science, Université de Paris, Paris, France
| | - Maika S Deffieu
- Institut de Recherche en Infectiologie de Montpellier (IRIM) CNRS, 1919 Route de Mende, 34293, Montpellier, France
- Université de Montpellier, 34090, Montpellier, France
| | - Pascal P Thérond
- Université Côte d'Azur, UMR7277 CNRS, Inserm 1091, Institut de Biologie de Valrose (iBV), Parc Valrose, Nice, France
| | - Raphael Gaudin
- Institut de Recherche en Infectiologie de Montpellier (IRIM) CNRS, 1919 Route de Mende, 34293, Montpellier, France.
- Université de Montpellier, 34090, Montpellier, France.
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3
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Müller GA, Müller TD. (Patho)Physiology of Glycosylphosphatidylinositol-Anchored Proteins I: Localization at Plasma Membranes and Extracellular Compartments. Biomolecules 2023; 13:biom13050855. [PMID: 37238725 DOI: 10.3390/biom13050855] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/11/2023] [Accepted: 05/13/2023] [Indexed: 05/28/2023] Open
Abstract
Glycosylphosphatidylinositol (GPI)-anchored proteins (APs) are anchored at the outer leaflet of plasma membranes (PMs) of all eukaryotic organisms studied so far by covalent linkage to a highly conserved glycolipid rather than a transmembrane domain. Since their first description, experimental data have been accumulating for the capability of GPI-APs to be released from PMs into the surrounding milieu. It became evident that this release results in distinct arrangements of GPI-APs which are compatible with the aqueous milieu upon loss of their GPI anchor by (proteolytic or lipolytic) cleavage or in the course of shielding of the full-length GPI anchor by incorporation into extracellular vesicles, lipoprotein-like particles and (lyso)phospholipid- and cholesterol-harboring micelle-like complexes or by association with GPI-binding proteins or/and other full-length GPI-APs. In mammalian organisms, the (patho)physiological roles of the released GPI-APs in the extracellular environment, such as blood and tissue cells, depend on the molecular mechanisms of their release as well as the cell types and tissues involved, and are controlled by their removal from circulation. This is accomplished by endocytic uptake by liver cells and/or degradation by GPI-specific phospholipase D in order to bypass potential unwanted effects of the released GPI-APs or their transfer from the releasing donor to acceptor cells (which will be reviewed in a forthcoming manuscript).
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Affiliation(s)
- Günter A Müller
- Institute for Diabetes and Obesity (IDO), Helmholtz Diabetes Center (HDC) at Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Ingolstädter Landstraße 1, 85764 Oberschleissheim, Germany
- German Center for Diabetes Research (DZD), 85764 Oberschleissheim, Germany
| | - Timo D Müller
- Institute for Diabetes and Obesity (IDO), Helmholtz Diabetes Center (HDC) at Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Ingolstädter Landstraße 1, 85764 Oberschleissheim, Germany
- German Center for Diabetes Research (DZD), 85764 Oberschleissheim, Germany
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4
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Aguilera-Romero A, Lucena R, Sabido-Bozo S, Muñiz M. Impact of sphingolipids on protein membrane trafficking. Biochim Biophys Acta Mol Cell Biol Lipids 2023; 1868:159334. [PMID: 37201864 DOI: 10.1016/j.bbalip.2023.159334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/28/2023] [Accepted: 05/10/2023] [Indexed: 05/20/2023]
Abstract
Membrane trafficking is essential to maintain the spatiotemporal control of protein and lipid distribution within membrane systems of eukaryotic cells. To achieve their functional destination proteins are sorted and transported into lipid carriers that construct the secretory and endocytic pathways. It is an emerging theme that lipid diversity might exist in part to ensure the homeostasis of these pathways. Sphingolipids, a chemical diverse type of lipids with special physicochemical characteristics have been implicated in the selective transport of proteins. In this review, we will discuss current knowledge about how sphingolipids modulate protein trafficking through the endomembrane systems to guarantee that proteins reach their functional destination and the proposed underlying mechanisms.
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Affiliation(s)
- Auxiliadora Aguilera-Romero
- Department of Cell Biology, University of Seville, 41012 Seville, Spain; Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Spain.
| | - Rafael Lucena
- Department of Cell Biology, University of Seville, 41012 Seville, Spain; Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Spain
| | - Susana Sabido-Bozo
- Department of Cell Biology, University of Seville, 41012 Seville, Spain; Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Spain
| | - Manuel Muñiz
- Department of Cell Biology, University of Seville, 41012 Seville, Spain; Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Spain.
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Reid KM, Spaull R, Salian S, Barwick K, Meyer E, Zhen J, Hirata H, Sheipouri D, Benkerroum H, Gorman KM, Papandreou A, Simpson MA, Hirano Y, Farabella I, Topf M, Grozeva D, Carss K, Smith M, Pall H, Lunt P, De Gressi S, Kamsteeg E, Haack TB, Carr L, Guerreiro R, Bras J, Maher ER, Scott RH, Vandenberg RJ, Raymond FL, Chong WK, Sudhakar S, Mankad K, Reith ME, Campeau PM, Harvey RJ, Kurian MA. MED27, SLC6A7, and MPPE1 Variants in a Complex Neurodevelopmental Disorder with Severe Dystonia. Mov Disord 2022; 37:2139-2146. [PMID: 35876425 PMCID: PMC9796674 DOI: 10.1002/mds.29147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 05/19/2022] [Accepted: 06/13/2022] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Despite advances in next generation sequencing technologies, the identification of variants of uncertain significance (VUS) can often hinder definitive diagnosis in patients with complex neurodevelopmental disorders. OBJECTIVE The objective of this study was to identify and characterize the underlying cause of disease in a family with two children with severe developmental delay associated with generalized dystonia and episodic status dystonicus, chorea, epilepsy, and cataracts. METHODS Candidate genes identified by autozygosity mapping and whole-exome sequencing were characterized using cellular and vertebrate model systems. RESULTS Homozygous variants were found in three candidate genes: MED27, SLC6A7, and MPPE1. Although the patients had features of MED27-related disorder, the SLC6A7 and MPPE1 variants were functionally investigated. SLC6A7 variant in vitro overexpression caused decreased proline transport as a result of reduced cell-surface expression, and zebrafish knockdown of slc6a7 exhibited developmental delay and fragile motor neuron morphology that could not be rescued by L-proline transporter-G396S RNA. Lastly, patient fibroblasts displayed reduced cell-surface expression of glycophosphatidylinositol-anchored proteins linked to MPPE1 dysfunction. CONCLUSIONS We report a family harboring a homozygous MED27 variant with additional loss-of-function SLC6A7 and MPPE1 gene variants, which potentially contribute to a blended phenotype caused by multilocus pathogenic variants. © 2022 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Kimberley M. Reid
- Molecular Neurosciences, Developmental Neurosciences, Zayed Centre for Research into Rare Disease in ChildrenUCL Great Ormond Street Institute of Child HealthLondonUnited Kingdom
| | - Robert Spaull
- Molecular Neurosciences, Developmental Neurosciences, Zayed Centre for Research into Rare Disease in ChildrenUCL Great Ormond Street Institute of Child HealthLondonUnited Kingdom,Department of NeurologyGreat Ormond Street HospitalLondonUnited Kingdom
| | - Smrithi Salian
- Department of Pediatrics, CHU Sainte‐Justine Research CenterUniversity of MontrealMontrealQuebecCanada
| | - Katy Barwick
- Molecular Neurosciences, Developmental Neurosciences, Zayed Centre for Research into Rare Disease in ChildrenUCL Great Ormond Street Institute of Child HealthLondonUnited Kingdom
| | - Esther Meyer
- Molecular Neurosciences, Developmental Neurosciences, Zayed Centre for Research into Rare Disease in ChildrenUCL Great Ormond Street Institute of Child HealthLondonUnited Kingdom
| | - Juan Zhen
- Cell Therapy and Cell Engineering FacilityMemorial Sloan Kettering Cancer CenterNew YorkNew YorkUSA
| | - Hiromi Hirata
- Department of Chemistry and Biological ScienceCollege of Science and Engineering, Aoyama Gakuin UniversitySagamiharaJapan
| | - Diba Sheipouri
- School of Medical Sciences, University of SydneySydneyNew South WalesAustralia
| | - Hind Benkerroum
- Department of Pediatrics, CHU Sainte‐Justine Research CenterUniversity of MontrealMontrealQuebecCanada
| | - Kathleen M. Gorman
- Department of Neurology and Clinical NeurophysiologyChildren's Health Ireland at Temple StreetDublinIreland,School of Medicine and Medical SciencesUniversity College DublinDublinIreland
| | - Apostolos Papandreou
- Molecular Neurosciences, Developmental Neurosciences, Zayed Centre for Research into Rare Disease in ChildrenUCL Great Ormond Street Institute of Child HealthLondonUnited Kingdom,Department of NeurologyGreat Ormond Street HospitalLondonUnited Kingdom
| | - Michael A. Simpson
- Division of Genetics and Molecular MedicineKing's College London School of MedicineLondonUnited Kingdom
| | - Yoshinobu Hirano
- Department of Chemistry and Biological ScienceCollege of Science and Engineering, Aoyama Gakuin UniversitySagamiharaJapan
| | - Irene Farabella
- Institute of Structural and Molecular Biology, Crystallography/Department of Biological SciencesBirkbeck College, University of LondonLondonUnited Kingdom,CNAG‐CRG, Centre for Genomic Regulation (CRG)The Barcelona Institute of Science and Technology (BIST)BarcelonaSpain
| | - Maya Topf
- Leibniz Institute for Virology (HPI) and Universitätsklinikum Hamburg Eppendorf (UKE)Centre for Structural Systems Biology (CSSB)HamburgGermany,Institute of Structural and Molecular Biology, Crystallography/Department of Biological SciencesBirkbeck College, University of LondonLondonUnited Kingdom
| | - Detelina Grozeva
- Department of Medical GeneticsCambridge Institute for Medical Research, University of CambridgeCambridgeUnited Kingdom,Centre for Trials Research, Neuadd MeirionnyddCardiff UniversityCardiffUnited Kingdom
| | - Keren Carss
- Wellcome Trust Sanger InstituteCambridgeUnited Kingdom
| | - Martin Smith
- Department of NeurologyJohn Radcliffe HospitalOxfordUnited Kingdom
| | - Hardev Pall
- Department of NeurologyQueen Elizabeth HospitalBirminghamUnited Kingdom
| | - Peter Lunt
- Clinical Genetic ServiceGloucester Royal HospitalGloucesterUnited Kingdom
| | - Susanna De Gressi
- Department of PaediatricsCheltenham General HospitalGloucestershireUnited Kingdom
| | - Erik‐Jan Kamsteeg
- Department of Human GeneticsRadboud University Medical CenterNijmegenNetherlands
| | - Tobias B. Haack
- Institute of Medical Genetics and Applied GenomicsUniversity of TuebingenTuebingenGermany
| | - Lucinda Carr
- Department of NeurologyGreat Ormond Street HospitalLondonUnited Kingdom
| | - Rita Guerreiro
- Department of Neurodegenerative ScienceVan Andel InstituteGrand RapidsMichiganUSA
| | - Jose Bras
- Department of Neurodegenerative ScienceVan Andel InstituteGrand RapidsMichiganUSA
| | - Eamonn R. Maher
- Department of Medical GeneticsUniversity of CambridgeCambridgeUnited Kingdom
| | - Richard H. Scott
- Department of Clinical GeneticsGreat Ormond Street HospitalLondonUnited Kingdom
| | | | - F. Lucy Raymond
- Centre for Trials Research, Neuadd MeirionnyddCardiff UniversityCardiffUnited Kingdom
| | - Wui K. Chong
- Department of RadiologyGreat Ormond Street HospitalLondonUnited Kingdom,Developmental Neurosciences DepartmentUCL Great Ormond Street Institute of Child HealthLondonUnited Kingdom
| | - Sniya Sudhakar
- Department of RadiologyGreat Ormond Street HospitalLondonUnited Kingdom,Developmental Neurosciences DepartmentUCL Great Ormond Street Institute of Child HealthLondonUnited Kingdom
| | - Kshitij Mankad
- Department of RadiologyGreat Ormond Street HospitalLondonUnited Kingdom,Developmental Neurosciences DepartmentUCL Great Ormond Street Institute of Child HealthLondonUnited Kingdom
| | - Maarten E. Reith
- Department of PsychiatryNew York University School of MedicineNew YorkNew YorkUSA
| | - Philippe M. Campeau
- Department of Pediatrics, CHU Sainte‐Justine Research CenterUniversity of MontrealMontrealQuebecCanada
| | - Robert J. Harvey
- School of Health and Behavioural SciencesUniversity of the Sunshine CoastSippy DownsQueenslandAustralia,Sunshine Coast Health InstituteBirtinyaQueenslandAustralia
| | - Manju A. Kurian
- Molecular Neurosciences, Developmental Neurosciences, Zayed Centre for Research into Rare Disease in ChildrenUCL Great Ormond Street Institute of Child HealthLondonUnited Kingdom,Department of NeurologyGreat Ormond Street HospitalLondonUnited Kingdom
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6
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Manzano-Lopez J, Rodriguez-Gallardo S, Sabido-Bozo S, Cortes-Gomez A, Perez-Linero AM, Lucena R, Cordones-Romero A, Lopez S, Aguilera-Romero A, Muñiz M. Crosslinking assay to study a specific cargo-coat interaction through a transmembrane receptor in the secretory pathway. PLoS One 2022; 17:e0263617. [PMID: 35143573 PMCID: PMC8830656 DOI: 10.1371/journal.pone.0263617] [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: 10/11/2021] [Accepted: 01/21/2022] [Indexed: 12/03/2022] Open
Abstract
Intracellular trafficking through the secretory organelles depends on transient interactions between cargo proteins and transport machinery. Cytosolic coat protein complexes capture specific luminal cargo proteins for incorporation into transport vesicles by interacting with them indirectly through a transmembrane adaptor or cargo receptor. Due to their transient nature, it is difficult to study these specific ternary protein interactions just using conventional native co-immunoprecipitation. To overcome this technical challenge, we have applied a crosslinking assay to stabilize the transient and/or weak protein interactions. Here, we describe a protocol of protein crosslinking and co-immunoprecipitation, which was employed to prove the indirect interaction in the endoplasmic reticulum of a luminal secretory protein with a selective subunit of the cytosolic COPII coat through a specific transmembrane cargo receptor. This method can be extended to address other transient ternary interactions between cytosolic proteins and luminal or extracellular proteins through a transmembrane receptor within the endomembrane system.
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Affiliation(s)
- Javier Manzano-Lopez
- Department of Cell Biology, University of Seville and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
- * E-mail: (JM-L); (AA-R); (MM)
| | - Sofia Rodriguez-Gallardo
- Department of Cell Biology, University of Seville and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Susana Sabido-Bozo
- Department of Cell Biology, University of Seville and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Alejandro Cortes-Gomez
- Department of Cell Biology, University of Seville and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Ana Maria Perez-Linero
- Department of Cell Biology, University of Seville and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Rafael Lucena
- Department of Cell Biology, University of Seville and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Antonio Cordones-Romero
- Department of Cell Biology, University of Seville and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Sergio Lopez
- Department of Cell Biology, University of Seville and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Auxiliadora Aguilera-Romero
- Department of Cell Biology, University of Seville and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
- * E-mail: (JM-L); (AA-R); (MM)
| | - Manuel Muñiz
- Department of Cell Biology, University of Seville and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
- * E-mail: (JM-L); (AA-R); (MM)
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