Cryo‐protective effect of an ice‐binding protein derived from Antarctic bacteria
Cold environments are populated by organisms able to contravene deleterious effects of low temperature by diverse adaptive strategies, including the production of ice binding proteins ( IBP s) that inhibit the growth of ice crystals inside and outside cells. We describe the properties of such a prot...
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Online Access: | http://dx.doi.org/10.1111/febs.13965 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Ffebs.13965 https://onlinelibrary.wiley.com/doi/pdf/10.1111/febs.13965 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/febs.13965 https://febs.onlinelibrary.wiley.com/doi/pdf/10.1111/febs.13965 |
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crwiley:10.1111/febs.13965 2024-10-13T14:03:26+00:00 Cryo‐protective effect of an ice‐binding protein derived from Antarctic bacteria Mangiagalli, Marco Bar‐Dolev, Maya Tedesco, Pietro Natalello, Antonino Kaleda, Aleksei Brocca, Stefania de Pascale, Donatella Pucciarelli, Sandra Miceli, Cristina Braslavsky, Ido Lotti, Marina Progetto Nazionale di Ricerche in Antartide 2016 http://dx.doi.org/10.1111/febs.13965 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Ffebs.13965 https://onlinelibrary.wiley.com/doi/pdf/10.1111/febs.13965 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/febs.13965 https://febs.onlinelibrary.wiley.com/doi/pdf/10.1111/febs.13965 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor The FEBS Journal volume 284, issue 1, page 163-177 ISSN 1742-464X 1742-4658 journal-article 2016 crwiley https://doi.org/10.1111/febs.13965 2024-09-27T04:17:11Z Cold environments are populated by organisms able to contravene deleterious effects of low temperature by diverse adaptive strategies, including the production of ice binding proteins ( IBP s) that inhibit the growth of ice crystals inside and outside cells. We describe the properties of such a protein ( Efc IBP ) identified in the metagenome of an Antarctic biological consortium composed of the ciliate Euplotes focardii and psychrophilic non‐cultured bacteria. Recombinant Efc IBP can resist freezing without any conformational damage and is moderately heat stable, with a midpoint temperature of 66.4 °C. Tested for its effects on ice, Efc IBP shows an unusual combination of properties not reported in other bacterial IBP s. First, it is one of the best‐performing IBP s described to date in the inhibition of ice recrystallization, with effective concentrations in the nanomolar range. Moreover, Efc IBP has thermal hysteresis activity (0.53 °C at 50 μ m ) and it can stop a crystal from growing when held at a constant temperature within the thermal hysteresis gap. Efc IBP protects purified proteins and bacterial cells from freezing damage when exposed to challenging temperatures. Efc IBP also possesses a potential N‐terminal signal sequence for protein transport and a DUF 3494 domain that is common to secreted IBP s. These features lead us to hypothesize that the protein is either anchored at the outer cell surface or concentrated around cells to provide survival advantage to the whole cell consortium. Article in Journal/Newspaper Antarc* Antarctic Wiley Online Library Antarctic The FEBS Journal 284 1 163 177 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Cold environments are populated by organisms able to contravene deleterious effects of low temperature by diverse adaptive strategies, including the production of ice binding proteins ( IBP s) that inhibit the growth of ice crystals inside and outside cells. We describe the properties of such a protein ( Efc IBP ) identified in the metagenome of an Antarctic biological consortium composed of the ciliate Euplotes focardii and psychrophilic non‐cultured bacteria. Recombinant Efc IBP can resist freezing without any conformational damage and is moderately heat stable, with a midpoint temperature of 66.4 °C. Tested for its effects on ice, Efc IBP shows an unusual combination of properties not reported in other bacterial IBP s. First, it is one of the best‐performing IBP s described to date in the inhibition of ice recrystallization, with effective concentrations in the nanomolar range. Moreover, Efc IBP has thermal hysteresis activity (0.53 °C at 50 μ m ) and it can stop a crystal from growing when held at a constant temperature within the thermal hysteresis gap. Efc IBP protects purified proteins and bacterial cells from freezing damage when exposed to challenging temperatures. Efc IBP also possesses a potential N‐terminal signal sequence for protein transport and a DUF 3494 domain that is common to secreted IBP s. These features lead us to hypothesize that the protein is either anchored at the outer cell surface or concentrated around cells to provide survival advantage to the whole cell consortium. |
author2 |
Progetto Nazionale di Ricerche in Antartide |
format |
Article in Journal/Newspaper |
author |
Mangiagalli, Marco Bar‐Dolev, Maya Tedesco, Pietro Natalello, Antonino Kaleda, Aleksei Brocca, Stefania de Pascale, Donatella Pucciarelli, Sandra Miceli, Cristina Braslavsky, Ido Lotti, Marina |
spellingShingle |
Mangiagalli, Marco Bar‐Dolev, Maya Tedesco, Pietro Natalello, Antonino Kaleda, Aleksei Brocca, Stefania de Pascale, Donatella Pucciarelli, Sandra Miceli, Cristina Braslavsky, Ido Lotti, Marina Cryo‐protective effect of an ice‐binding protein derived from Antarctic bacteria |
author_facet |
Mangiagalli, Marco Bar‐Dolev, Maya Tedesco, Pietro Natalello, Antonino Kaleda, Aleksei Brocca, Stefania de Pascale, Donatella Pucciarelli, Sandra Miceli, Cristina Braslavsky, Ido Lotti, Marina |
author_sort |
Mangiagalli, Marco |
title |
Cryo‐protective effect of an ice‐binding protein derived from Antarctic bacteria |
title_short |
Cryo‐protective effect of an ice‐binding protein derived from Antarctic bacteria |
title_full |
Cryo‐protective effect of an ice‐binding protein derived from Antarctic bacteria |
title_fullStr |
Cryo‐protective effect of an ice‐binding protein derived from Antarctic bacteria |
title_full_unstemmed |
Cryo‐protective effect of an ice‐binding protein derived from Antarctic bacteria |
title_sort |
cryo‐protective effect of an ice‐binding protein derived from antarctic bacteria |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/febs.13965 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Ffebs.13965 https://onlinelibrary.wiley.com/doi/pdf/10.1111/febs.13965 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/febs.13965 https://febs.onlinelibrary.wiley.com/doi/pdf/10.1111/febs.13965 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
The FEBS Journal volume 284, issue 1, page 163-177 ISSN 1742-464X 1742-4658 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/febs.13965 |
container_title |
The FEBS Journal |
container_volume |
284 |
container_issue |
1 |
container_start_page |
163 |
op_container_end_page |
177 |
_version_ |
1812808444898443264 |