Crystal structure of vipoxin at 2.0 angstroms: An example of regulation of a toxic function generated by molecular evolution
Vipoxin is the main toxic component in the venom of the Bulgarian snake Vipera ammodytes meridionalis, the most toxic snake in Europe. Vipoxin is a complex between a toxic phospholipase A sub(2) (PLA sub(2)) and a non-toxic protein inhibitor. The structure is of genetic interest due to the high degr...
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| Published in: | FEBS letters Vol. 412; no. 3; pp. 573 - 577 |
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| Main Authors: | , , , , , , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
01-08-1997
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| Online Access: | Get full text |
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| Abstract | Vipoxin is the main toxic component in the venom of the Bulgarian snake Vipera ammodytes meridionalis, the most toxic snake in Europe. Vipoxin is a complex between a toxic phospholipase A sub(2) (PLA sub(2)) and a non-toxic protein inhibitor. The structure is of genetic interest due to the high degree of sequence homology (62%) between the two functionally different components. The structure shows that the formation of the complex in vipoxin is significantly different to that seen in many known structures of phospholipases and contradicts the assumptions made in earlier studies. The modulation of PLA sub(2) activity is of great pharmacological interest, and the present structure will be a model for structure-based drug design. |
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| AbstractList | Vipoxin is the main toxic component in the venom of the Bulgarian snake Vipera ammodytes meridionalis, the most toxic snake in Europe. Vipoxin is a complex between a toxic phospholipase A sub(2) (PLA sub(2)) and a non-toxic protein inhibitor. The structure is of genetic interest due to the high degree of sequence homology (62%) between the two functionally different components. The structure shows that the formation of the complex in vipoxin is significantly different to that seen in many known structures of phospholipases and contradicts the assumptions made in earlier studies. The modulation of PLA sub(2) activity is of great pharmacological interest, and the present structure will be a model for structure-based drug design. |
| Author | Willingmann, P Perbandt, M Mancheva, I Wilson, J C Genov, N Betzel, Ch Weber, W Eschenburg, S Aleksiev, B Singh, T P |
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| Title | Crystal structure of vipoxin at 2.0 angstroms: An example of regulation of a toxic function generated by molecular evolution |
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