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Overproduction of human Zip (SLC39) zinc transporters in saccharomyces cerevisiae for biophysical characterization

Becares, Eva Ramos ; Pedersen, Per Amstrup ; Gourdon, Pontus LU and Gotfryd, Kamil (2021) In Cells 10(2). p.1-21
Abstract

Zinc constitutes the second most abundant transition metal in the human body, and it is implicated in numerous cellular processes, including cell division, DNA and protein synthesis as well as for the catalytic activity of many enzymes. Two major membrane protein families facilitate zinc homeostasis in the animal kingdom, i.e., Zrt/Irt‐like proteins (ZIPs aka solute carrier 39, SLC39, family) and Zn transporters (ZnTs), essentially conducting zinc flux in the opposite directions. Human ZIPs (hZIPs) regulate import of extracellular zinc to the cytosol, being critical in preventing overaccumulation of this potentially toxic metal, and crucial for diverse physiological and pathological processes, including development of neurodegenerative... (More)

Zinc constitutes the second most abundant transition metal in the human body, and it is implicated in numerous cellular processes, including cell division, DNA and protein synthesis as well as for the catalytic activity of many enzymes. Two major membrane protein families facilitate zinc homeostasis in the animal kingdom, i.e., Zrt/Irt‐like proteins (ZIPs aka solute carrier 39, SLC39, family) and Zn transporters (ZnTs), essentially conducting zinc flux in the opposite directions. Human ZIPs (hZIPs) regulate import of extracellular zinc to the cytosol, being critical in preventing overaccumulation of this potentially toxic metal, and crucial for diverse physiological and pathological processes, including development of neurodegenerative disorders and several cancers. To date, our understanding of structure–function relationships governing hZIP‐mediated zinc transport mechanism is scarce, mainly due to the notorious difficulty in overproduction of these proteins for biophysical characterization. Here we describe employment of a Saccharomyces cerevisiae‐based platform for heterologous expression of hZIPs. We demonstrate that yeast is able to produce four full‐length hZIP members belonging to three different subfamilies. One target (hZIP1) is purified in the high quantity and homogeneity required for the downstream biochemical analysis. Our work demonstrates the potential of the described production system for future structural and functional studies of hZIP transporters.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Family, Membrane proteins, Overproduction, Production platform, Protein purification, Saccharomyces cerevisiae, SLC39, Solute carrier 39, Yeast, Zinc, Zinc transporters, ZIPs
in
Cells
volume
10
issue
2
article number
213
pages
21 pages
publisher
MDPI AG
external identifiers
  • pmid:33494457
  • scopus:85100483801
ISSN
2073-4409
DOI
10.3390/cells10020213
language
English
LU publication?
yes
id
83632ec1-cd42-4708-88a0-80cba154baaa
date added to LUP
2022-03-22 15:32:27
date last changed
2024-06-07 01:55:35
@article{83632ec1-cd42-4708-88a0-80cba154baaa,
  abstract     = {{<p>Zinc constitutes the second most abundant transition metal in the human body, and it is implicated in numerous cellular processes, including cell division, DNA and protein synthesis as well as for the catalytic activity of many enzymes. Two major membrane protein families facilitate zinc homeostasis in the animal kingdom, i.e., Zrt/Irt‐like proteins (ZIPs aka solute carrier 39, SLC39, family) and Zn transporters (ZnTs), essentially conducting zinc flux in the opposite directions. Human ZIPs (hZIPs) regulate import of extracellular zinc to the cytosol, being critical in preventing overaccumulation of this potentially toxic metal, and crucial for diverse physiological and pathological processes, including development of neurodegenerative disorders and several cancers. To date, our understanding of structure–function relationships governing hZIP‐mediated zinc transport mechanism is scarce, mainly due to the notorious difficulty in overproduction of these proteins for biophysical characterization. Here we describe employment of a Saccharomyces cerevisiae‐based platform for heterologous expression of hZIPs. We demonstrate that yeast is able to produce four full‐length hZIP members belonging to three different subfamilies. One target (hZIP1) is purified in the high quantity and homogeneity required for the downstream biochemical analysis. Our work demonstrates the potential of the described production system for future structural and functional studies of hZIP transporters.</p>}},
  author       = {{Becares, Eva Ramos and Pedersen, Per Amstrup and Gourdon, Pontus and Gotfryd, Kamil}},
  issn         = {{2073-4409}},
  keywords     = {{Family; Membrane proteins; Overproduction; Production platform; Protein purification; Saccharomyces cerevisiae; SLC39; Solute carrier 39; Yeast; Zinc; Zinc transporters; ZIPs}},
  language     = {{eng}},
  month        = {{02}},
  number       = {{2}},
  pages        = {{1--21}},
  publisher    = {{MDPI AG}},
  series       = {{Cells}},
  title        = {{Overproduction of human Zip (SLC39) zinc transporters in saccharomyces cerevisiae for biophysical characterization}},
  url          = {{http://dx.doi.org/10.3390/cells10020213}},
  doi          = {{10.3390/cells10020213}},
  volume       = {{10}},
  year         = {{2021}},
}