Cloning, structural modelling and characterization of VesT2s, a wasp venom hyaluronidase (HAase) from Vespa tropica
Abstract Background: Wasp venom is a complex mixture containing proteins, enzymes and small molecules, including some of the most dangerous allergens. The greater banded wasp (Vespa tropica) is well-known for its lethal venom, whose one of the major components is a hyaluronidase (HAase). It is belie...
Published in: | Journal of Venomous Animals and Toxins including Tropical Diseases |
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ftdoajarticles:oai:doaj.org/article:1487a46520ab4889ae20c66ea17bf924 2023-05-15T15:15:53+02:00 Cloning, structural modelling and characterization of VesT2s, a wasp venom hyaluronidase (HAase) from Vespa tropica Prapenpuksiri Rungsa Paroonkorn Incamnoi Sophida Sukprasert Nunthawun Uawonggul Sompong Klaynongsruang Jureerut Daduang Rina Patramanon Sittiruk Roytrakul Sakda Daduang 2016-12-01T00:00:00Z https://doi.org/10.1186/s40409-016-0084-5 https://doaj.org/article/1487a46520ab4889ae20c66ea17bf924 EN eng SciELO http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992016000100321&lng=en&tlng=en https://doaj.org/toc/1678-9199 1678-9199 doi:10.1186/s40409-016-0084-5 https://doaj.org/article/1487a46520ab4889ae20c66ea17bf924 Journal of Venomous Animals and Toxins including Tropical Diseases, Vol 22, Iss 0 (2016) Wasp venom Vespa tropica Hyaluronidase (HAase) Arctic medicine. Tropical medicine RC955-962 Toxicology. Poisons RA1190-1270 Zoology QL1-991 article 2016 ftdoajarticles https://doi.org/10.1186/s40409-016-0084-5 2022-12-31T00:11:04Z Abstract Background: Wasp venom is a complex mixture containing proteins, enzymes and small molecules, including some of the most dangerous allergens. The greater banded wasp (Vespa tropica) is well-known for its lethal venom, whose one of the major components is a hyaluronidase (HAase). It is believed that the high protein proportion and activity of this enzyme is responsible for the venom potency. Methods: In the present study, cDNA cloning, sequencing and 3D-structure of Vespa tropica venom HAase were described. Anti-native HAase antibody was used for neutralization assay. Results: Two isoforms, VesT2a and VesT2b, were classified as members of the glycosidase hydrolase 56 family with high similarity (42–97 %) to the allergen venom HAase. VesT2a gene contained 1486 nucleotide residues encoding 357 amino acids whereas the VesT2b isoform consisted of 1411 residues encoding 356 amino acids. The mature VesT2a and VesT2b are similar in mass and pI after prediction. They are 39119.73 Da/pI 8.91 and 39571.5 Da/pI 9.38, respectively. Two catalytic residues in VesT2a, Asp107 and Glu109 were substituted in VesT2b by Asn, thus impeding enzymatic activity. The 3D-structure of the VesT2s isoform consisted of a central core (α/β)7 barrel and two disulfide bridges. The five putative glycosylation sites (Asn79, Asn99, Asn127, Asn187 and Asn325) of VesT2a and the three glycosylation sites (Asn1, Asn66 and Asn81) in VesT2b were predicted. An allergenic property significantly depends on the number of putative N-glycosylation sites. The anti-native HAase serum specifically recognized to venom HAase was able to neutralize toxicity of V. tropica venom. The ratio of venom antiserum was 1:12. Conclusions: The wasp venom allergy is known to cause life-threatening and fatal IgE-mediated anaphylactic reactions in allergic individuals. Structural analysis was a helpful tool for prediction of allergenic properties including their cross reactivity among the vespid HAase. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Journal of Venomous Animals and Toxins including Tropical Diseases 22 1 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Wasp venom Vespa tropica Hyaluronidase (HAase) Arctic medicine. Tropical medicine RC955-962 Toxicology. Poisons RA1190-1270 Zoology QL1-991 |
spellingShingle |
Wasp venom Vespa tropica Hyaluronidase (HAase) Arctic medicine. Tropical medicine RC955-962 Toxicology. Poisons RA1190-1270 Zoology QL1-991 Prapenpuksiri Rungsa Paroonkorn Incamnoi Sophida Sukprasert Nunthawun Uawonggul Sompong Klaynongsruang Jureerut Daduang Rina Patramanon Sittiruk Roytrakul Sakda Daduang Cloning, structural modelling and characterization of VesT2s, a wasp venom hyaluronidase (HAase) from Vespa tropica |
topic_facet |
Wasp venom Vespa tropica Hyaluronidase (HAase) Arctic medicine. Tropical medicine RC955-962 Toxicology. Poisons RA1190-1270 Zoology QL1-991 |
description |
Abstract Background: Wasp venom is a complex mixture containing proteins, enzymes and small molecules, including some of the most dangerous allergens. The greater banded wasp (Vespa tropica) is well-known for its lethal venom, whose one of the major components is a hyaluronidase (HAase). It is believed that the high protein proportion and activity of this enzyme is responsible for the venom potency. Methods: In the present study, cDNA cloning, sequencing and 3D-structure of Vespa tropica venom HAase were described. Anti-native HAase antibody was used for neutralization assay. Results: Two isoforms, VesT2a and VesT2b, were classified as members of the glycosidase hydrolase 56 family with high similarity (42–97 %) to the allergen venom HAase. VesT2a gene contained 1486 nucleotide residues encoding 357 amino acids whereas the VesT2b isoform consisted of 1411 residues encoding 356 amino acids. The mature VesT2a and VesT2b are similar in mass and pI after prediction. They are 39119.73 Da/pI 8.91 and 39571.5 Da/pI 9.38, respectively. Two catalytic residues in VesT2a, Asp107 and Glu109 were substituted in VesT2b by Asn, thus impeding enzymatic activity. The 3D-structure of the VesT2s isoform consisted of a central core (α/β)7 barrel and two disulfide bridges. The five putative glycosylation sites (Asn79, Asn99, Asn127, Asn187 and Asn325) of VesT2a and the three glycosylation sites (Asn1, Asn66 and Asn81) in VesT2b were predicted. An allergenic property significantly depends on the number of putative N-glycosylation sites. The anti-native HAase serum specifically recognized to venom HAase was able to neutralize toxicity of V. tropica venom. The ratio of venom antiserum was 1:12. Conclusions: The wasp venom allergy is known to cause life-threatening and fatal IgE-mediated anaphylactic reactions in allergic individuals. Structural analysis was a helpful tool for prediction of allergenic properties including their cross reactivity among the vespid HAase. |
format |
Article in Journal/Newspaper |
author |
Prapenpuksiri Rungsa Paroonkorn Incamnoi Sophida Sukprasert Nunthawun Uawonggul Sompong Klaynongsruang Jureerut Daduang Rina Patramanon Sittiruk Roytrakul Sakda Daduang |
author_facet |
Prapenpuksiri Rungsa Paroonkorn Incamnoi Sophida Sukprasert Nunthawun Uawonggul Sompong Klaynongsruang Jureerut Daduang Rina Patramanon Sittiruk Roytrakul Sakda Daduang |
author_sort |
Prapenpuksiri Rungsa |
title |
Cloning, structural modelling and characterization of VesT2s, a wasp venom hyaluronidase (HAase) from Vespa tropica |
title_short |
Cloning, structural modelling and characterization of VesT2s, a wasp venom hyaluronidase (HAase) from Vespa tropica |
title_full |
Cloning, structural modelling and characterization of VesT2s, a wasp venom hyaluronidase (HAase) from Vespa tropica |
title_fullStr |
Cloning, structural modelling and characterization of VesT2s, a wasp venom hyaluronidase (HAase) from Vespa tropica |
title_full_unstemmed |
Cloning, structural modelling and characterization of VesT2s, a wasp venom hyaluronidase (HAase) from Vespa tropica |
title_sort |
cloning, structural modelling and characterization of vest2s, a wasp venom hyaluronidase (haase) from vespa tropica |
publisher |
SciELO |
publishDate |
2016 |
url |
https://doi.org/10.1186/s40409-016-0084-5 https://doaj.org/article/1487a46520ab4889ae20c66ea17bf924 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Journal of Venomous Animals and Toxins including Tropical Diseases, Vol 22, Iss 0 (2016) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992016000100321&lng=en&tlng=en https://doaj.org/toc/1678-9199 1678-9199 doi:10.1186/s40409-016-0084-5 https://doaj.org/article/1487a46520ab4889ae20c66ea17bf924 |
op_doi |
https://doi.org/10.1186/s40409-016-0084-5 |
container_title |
Journal of Venomous Animals and Toxins including Tropical Diseases |
container_volume |
22 |
container_issue |
1 |
_version_ |
1766346209626161152 |