Proteomics

Dataset Information

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Venom proteomics of Indonesian king cobra


ABSTRACT: Complementary bottom-up MS/MS analyses contributed to complete a locus-resolved venom phenotype map for O. hannah, the world's longest venomous snake and a species of medical concern across its wide distribution range in forests from India through Southeast Asia. Its venom composition convincingly explains the main neurotoxic effects of human envenoming caused by king cobra bite. The integration of efficient chromatographic separation of the venom components, and locus-resolved toxin identification through top-down and bottom-up MS/MS-based species-specific database searching, promises a bright future to the field of venom research.

INSTRUMENT(S): LTQ Orbitrap XL

ORGANISM(S): Ophiophagus Hannah (king Cobra) (naja Hannah)

TISSUE(S): Venom

SUBMITTER: Daniel Petras  

LAB HEAD: Roderich Süssmuth

PROVIDER: PXD001726 | Pride | 2015-08-20

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
KC2_PH_11.mgf Mgf
KC2_PH_11.pride.mgf.gz Mgf
KC2_PH_11.raw Raw
KC2_PH_12.mgf Mgf
KC2_PH_12.pride.mgf.gz Mgf
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Publications

Venom Proteomics of Indonesian King Cobra, Ophiophagus hannah: Integrating Top-Down and Bottom-Up Approaches.

Petras Daniel D   Heiss Paul P   Süssmuth Roderich D RD   Calvete Juan J JJ  

Journal of proteome research 20150427 6


We report on the first application of top-down mass spectrometry in snake venomics. De novo sequence tags generated by, and ProSight Lite supported analysis of, combined collisional based dissotiations (CID and HCD) recorded in a hybrid LTQ Orbitrap instrument in data-dependent mode identified a number of proteins from different toxin families, namely, 11 three-finger toxins (7-7.9 kDa), a Kunitz-type inhibitor (6.3 kDa), ohanin (11.9 kDa), a novel phospholipase A2 molecule (13.8 kDa), and the c  ...[more]

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