Identification of a target protein of Hydra actinoporin-like toxin-1 (HALT-1)using GST affinity purification and SILAC-based quantitative proteomics
Hydra actinoporin-like toxin-1 (HALT-1) is a 20.8 kDa pore-forming toxin isolated from Hydra magnipapillata. HALT-1 shares structural similarity with actinoporins, a family that is well known for its haemolytic and cytolytic activity. However, the precise pore-forming mechanism of HALT-1 remains an...
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Elsevier
2017
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| Online Access: | http://eprints.sunway.edu.my/492/ http://eprints.sunway.edu.my/492/1/hwang%20jung%20shan.pdf |
| _version_ | 1848801832018640896 |
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| author | Ameirika, . Hong, Xi Sha Hwang, Jung Shan * |
| author_facet | Ameirika, . Hong, Xi Sha Hwang, Jung Shan * |
| author_sort | Ameirika, . |
| building | SU Institutional Repository |
| collection | Online Access |
| description | Hydra actinoporin-like toxin-1 (HALT-1) is a 20.8 kDa pore-forming toxin isolated from Hydra magnipapillata. HALT-1 shares structural similarity with actinoporins, a family that is well known for its haemolytic and cytolytic activity. However, the precise pore-forming mechanism
of HALT-1 remains an open question since little is known about the specific target binding for HALT-1. For this reason, a comprehensive proteomic analysis was performed using affinity purification and SILAC-based mass spectrometry to identify potential protein-protein
interactions between mammalian HeLa cell surface proteins and HALT-1. A total of 4 mammalian proteins was identified, of which only folate receptor alpha was further verified by
ELISA. Our preliminary results highlight an alternative-binding mode of HALT-1 to the human plasma membrane. This is the first evidence showing that HALT-1, an actinoporin-like protein,binds to a membrane protein, the folate receptor alpha. This study would advance our
understanding of the molecular basis of toxicity of pore-forming toxins and provide new insights in the production of more potent inhibitors for the toxin-membrane receptor interactions. |
| first_indexed | 2025-11-14T21:13:43Z |
| format | Article |
| id | sunway-492 |
| institution | Sunway University |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T21:13:43Z |
| publishDate | 2017 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | sunway-4922019-04-25T07:27:19Z http://eprints.sunway.edu.my/492/ Identification of a target protein of Hydra actinoporin-like toxin-1 (HALT-1)using GST affinity purification and SILAC-based quantitative proteomics Ameirika, . Hong, Xi Sha Hwang, Jung Shan * Q Science (General) QR Microbiology Hydra actinoporin-like toxin-1 (HALT-1) is a 20.8 kDa pore-forming toxin isolated from Hydra magnipapillata. HALT-1 shares structural similarity with actinoporins, a family that is well known for its haemolytic and cytolytic activity. However, the precise pore-forming mechanism of HALT-1 remains an open question since little is known about the specific target binding for HALT-1. For this reason, a comprehensive proteomic analysis was performed using affinity purification and SILAC-based mass spectrometry to identify potential protein-protein interactions between mammalian HeLa cell surface proteins and HALT-1. A total of 4 mammalian proteins was identified, of which only folate receptor alpha was further verified by ELISA. Our preliminary results highlight an alternative-binding mode of HALT-1 to the human plasma membrane. This is the first evidence showing that HALT-1, an actinoporin-like protein,binds to a membrane protein, the folate receptor alpha. This study would advance our understanding of the molecular basis of toxicity of pore-forming toxins and provide new insights in the production of more potent inhibitors for the toxin-membrane receptor interactions. Elsevier 2017 Article PeerReviewed text en http://eprints.sunway.edu.my/492/1/hwang%20jung%20shan.pdf Ameirika, . and Hong, Xi Sha and Hwang, Jung Shan * (2017) Identification of a target protein of Hydra actinoporin-like toxin-1 (HALT-1)using GST affinity purification and SILAC-based quantitative proteomics. Toxicon, 133. pp. 153-161. ISSN 0041 0101 |
| spellingShingle | Q Science (General) QR Microbiology Ameirika, . Hong, Xi Sha Hwang, Jung Shan * Identification of a target protein of Hydra actinoporin-like toxin-1 (HALT-1)using GST affinity purification and SILAC-based quantitative proteomics |
| title | Identification of a target protein of Hydra actinoporin-like toxin-1 (HALT-1)using GST affinity purification and SILAC-based quantitative proteomics |
| title_full | Identification of a target protein of Hydra actinoporin-like toxin-1 (HALT-1)using GST affinity purification and SILAC-based quantitative proteomics |
| title_fullStr | Identification of a target protein of Hydra actinoporin-like toxin-1 (HALT-1)using GST affinity purification and SILAC-based quantitative proteomics |
| title_full_unstemmed | Identification of a target protein of Hydra actinoporin-like toxin-1 (HALT-1)using GST affinity purification and SILAC-based quantitative proteomics |
| title_short | Identification of a target protein of Hydra actinoporin-like toxin-1 (HALT-1)using GST affinity purification and SILAC-based quantitative proteomics |
| title_sort | identification of a target protein of hydra actinoporin-like toxin-1 (halt-1)using gst affinity purification and silac-based quantitative proteomics |
| topic | Q Science (General) QR Microbiology |
| url | http://eprints.sunway.edu.my/492/ http://eprints.sunway.edu.my/492/1/hwang%20jung%20shan.pdf |