4jtc: Difference between revisions
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{{STRUCTURE_4jtc| PDB=4jtc | SCENE= }} | |||
===Crystal structure of Kv1.2-2.1 paddle chimera channel in complex with Charybdotoxin in Cs+=== | |||
{{ABSTRACT_PUBMED_23705070}} | |||
==Function== | |||
[[http://www.uniprot.org/uniprot/KCAB2_RAT KCAB2_RAT]] Accessory potassium channel protein which modulates the activity of the pore-forming alpha subunit. [[http://www.uniprot.org/uniprot/KAX11_LEIQH KAX11_LEIQH]] Potent selective inhibitor of high conductance (maxi-K), different medium and small conductance calcium-activated potassium channels (KCa/KCNM), as well as a voltage-dependent potassium channel (Kv1.3/KCNA3). It appears to block channel activity by a simple bimolecular inhibition process.<ref>PMID:15118082</ref> Has a pH-specific antimicrobial activity against bacteria (B.subtilis, E.coli and S.aureus) and the fungus C.albicans.<ref>PMID:15118082</ref> [[http://www.uniprot.org/uniprot/KCNA2_RAT KCNA2_RAT]] Mediates the voltage-dependent potassium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient.<ref>PMID:7544443</ref> | |||
==About this Structure== | |||
[[4jtc]] is a 5 chain structure with sequence from [http://en.wikipedia.org/wiki/Leiurus_quinquestriatus_hebraeus Leiurus quinquestriatus hebraeus] and [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4JTC OCA]. | |||
==Reference== | |||
<ref group="xtra">PMID:023705070</ref><references group="xtra"/><references/> | |||
[[Category: Leiurus quinquestriatus hebraeus]] | |||
[[Category: Rattus norvegicus]] | |||
[[Category: Banerjee, A.]] | |||
[[Category: Campbell, E.]] | |||
[[Category: Lee, A.]] | |||
[[Category: MacKinnon, R.]] | |||
[[Category: Pore blocking toxin]] | |||
[[Category: Potassium channel]] | |||
[[Category: Protein-protein complex]] | |||
[[Category: Transport protein-toxin complex]] |