2pta Summary

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PANDINUS TOXIN K-A (PITX-KA) FROM PANDINUS IMPERATOR, NMR, 20 STRUCTURES

The structure was published by Tenenholz, T.C., Rogowski, R.S., Collins, J.H., Blaustein, M.P., and Weber, D.J., in 1997 in a paper entitled "Solution structure for Pandinus toxin K-alpha (PiTX-K alpha), a selective blocker of A-type potassium channels." (abstract).

The structure was determined using NMR spectroscopy and deposited in 1996.

The experimental data on which the structure is based was also deposited.

The PDB entry contains the structure of PANDINUS TOXIN K-ALPHA. This molecule has the UniProt identifier P55927 (KAX71_PANIM)search. The sample contained 35 residues which is 100% of the natural sequence. Out of 35 residues 35 were observed and are deposited in the PDB.

The molecule is most likely monomeric.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A PANDINUS TOXIN K-ALPHA P55927 (13-47) (KAX71_PANIM)search Pandinus imperatorsearch 100% 35 100%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P55927 (13 - 47) PANDINUS TOXIN K-ALPHA Pandinus imperator

Chain Structural classification (SCOP) Sequence family (Pfam)
A (P55927) Short-chain scorpion toxinssearch PF00451: Scorpion short toxin, BmKK2search

Chain ID Cellular component (GO) Biological process (GO) Molecular function (GO)
A (P55927) extracellular regionsearch defense responsesearch pathogenesissearch ion channel inhibitor activitysearch

Chain InterPro annotation
A Scorpion short chain toxin, potassium channel inhibitorsearch Knottin, scorpion toxin-likesearch