Molecular cloning, characterisation and molecular modelling of two novel T-synthases from mollusc origin
Abstract The glycoprotein-N-acetylgalactosamine β1,3-galactosyltransferase, known as T-synthase (EC 2.4.1.122), plays a crucial role in the synthesis of the T-antigen, which is the core 1 O-glycan structure. This enzyme transfers galactose from UDP-Gal to GalNAc-Ser/Thr. The T-antigen has significan...
Published in: | Glycobiology |
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Oxford University Press (OUP)
2024
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Online Access: | http://dx.doi.org/10.1093/glycob/cwae013 https://academic.oup.com/glycob/advance-article-pdf/doi/10.1093/glycob/cwae013/56879146/cwae013.pdf https://academic.oup.com/glycob/article-pdf/34/4/cwae013/57193872/cwae013.pdf |
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croxfordunivpr:10.1093/glycob/cwae013 2024-05-12T08:02:45+00:00 Molecular cloning, characterisation and molecular modelling of two novel T-synthases from mollusc origin Zemkollari, Marilica Oostenbrink, Chris Grabherr, Reingard Staudacher, Erika Austrian Science Fund 2024 http://dx.doi.org/10.1093/glycob/cwae013 https://academic.oup.com/glycob/advance-article-pdf/doi/10.1093/glycob/cwae013/56879146/cwae013.pdf https://academic.oup.com/glycob/article-pdf/34/4/cwae013/57193872/cwae013.pdf en eng Oxford University Press (OUP) https://creativecommons.org/licenses/by-nc/4.0/ Glycobiology volume 34, issue 4 ISSN 1460-2423 Biochemistry journal-article 2024 croxfordunivpr https://doi.org/10.1093/glycob/cwae013 2024-04-18T08:16:23Z Abstract The glycoprotein-N-acetylgalactosamine β1,3-galactosyltransferase, known as T-synthase (EC 2.4.1.122), plays a crucial role in the synthesis of the T-antigen, which is the core 1 O-glycan structure. This enzyme transfers galactose from UDP-Gal to GalNAc-Ser/Thr. The T-antigen has significant functions in animal development, immune response, and recognition processes. Molluscs are a successful group of animals that inhabit various environments, such as freshwater, marine, and terrestrial habitats. They serve important roles in ecosystems as filter feeders and decomposers but can also be pests in agriculture and intermediate hosts for human and cattle parasites. The identification and characterization of novel carbohydrate active enzymes, such as T-synthase, can aid in the understanding of molluscan glycosylation abilities and their adaptation and survival abilities. Here, the T-synthase enzymes from the snail Pomacea canaliculata and the oyster Crassostrea gigas are identified, cloned, expressed, and characterized, with a focus on structural elucidation. The synthesized enzymes display core 1 β1,3-galactosyltransferase activity using pNP-α-GalNAc as substrate and exhibit similar biochemical parameters as previously characterised T-synthases from other species. While the enzyme from C. gigas shares the same structural parameters with the other enzymes characterised so far, the T-synthase from P. canaliculata lacks the consensus sequence CCSD, which was previously considered indispensable. Article in Journal/Newspaper Crassostrea gigas Oxford University Press Glycobiology |
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Oxford University Press |
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English |
topic |
Biochemistry |
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Biochemistry Zemkollari, Marilica Oostenbrink, Chris Grabherr, Reingard Staudacher, Erika Molecular cloning, characterisation and molecular modelling of two novel T-synthases from mollusc origin |
topic_facet |
Biochemistry |
description |
Abstract The glycoprotein-N-acetylgalactosamine β1,3-galactosyltransferase, known as T-synthase (EC 2.4.1.122), plays a crucial role in the synthesis of the T-antigen, which is the core 1 O-glycan structure. This enzyme transfers galactose from UDP-Gal to GalNAc-Ser/Thr. The T-antigen has significant functions in animal development, immune response, and recognition processes. Molluscs are a successful group of animals that inhabit various environments, such as freshwater, marine, and terrestrial habitats. They serve important roles in ecosystems as filter feeders and decomposers but can also be pests in agriculture and intermediate hosts for human and cattle parasites. The identification and characterization of novel carbohydrate active enzymes, such as T-synthase, can aid in the understanding of molluscan glycosylation abilities and their adaptation and survival abilities. Here, the T-synthase enzymes from the snail Pomacea canaliculata and the oyster Crassostrea gigas are identified, cloned, expressed, and characterized, with a focus on structural elucidation. The synthesized enzymes display core 1 β1,3-galactosyltransferase activity using pNP-α-GalNAc as substrate and exhibit similar biochemical parameters as previously characterised T-synthases from other species. While the enzyme from C. gigas shares the same structural parameters with the other enzymes characterised so far, the T-synthase from P. canaliculata lacks the consensus sequence CCSD, which was previously considered indispensable. |
author2 |
Austrian Science Fund |
format |
Article in Journal/Newspaper |
author |
Zemkollari, Marilica Oostenbrink, Chris Grabherr, Reingard Staudacher, Erika |
author_facet |
Zemkollari, Marilica Oostenbrink, Chris Grabherr, Reingard Staudacher, Erika |
author_sort |
Zemkollari, Marilica |
title |
Molecular cloning, characterisation and molecular modelling of two novel T-synthases from mollusc origin |
title_short |
Molecular cloning, characterisation and molecular modelling of two novel T-synthases from mollusc origin |
title_full |
Molecular cloning, characterisation and molecular modelling of two novel T-synthases from mollusc origin |
title_fullStr |
Molecular cloning, characterisation and molecular modelling of two novel T-synthases from mollusc origin |
title_full_unstemmed |
Molecular cloning, characterisation and molecular modelling of two novel T-synthases from mollusc origin |
title_sort |
molecular cloning, characterisation and molecular modelling of two novel t-synthases from mollusc origin |
publisher |
Oxford University Press (OUP) |
publishDate |
2024 |
url |
http://dx.doi.org/10.1093/glycob/cwae013 https://academic.oup.com/glycob/advance-article-pdf/doi/10.1093/glycob/cwae013/56879146/cwae013.pdf https://academic.oup.com/glycob/article-pdf/34/4/cwae013/57193872/cwae013.pdf |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Glycobiology volume 34, issue 4 ISSN 1460-2423 |
op_rights |
https://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1093/glycob/cwae013 |
container_title |
Glycobiology |
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1798844889804308480 |