Refined structure of cytotoxin IRefined structure of cytotoxin I

Structural highlights

5npn is a 1 chain structure with sequence from Naja oxiana. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[3SA1_NAJOX] This three-finger cytotoxin is a basic protein that interacts and penetrates into the cell membrane, with the tips of all the three loops. Cytotoxins which have a 'Pro-30' (P-type) interacts with membrane stronger that those which have a Ser-28 (S-type). CTI interacts with membrane weaker than CTII.

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OCA