Re: CCL:K+ channel
Dear Daniele Spera,
>is anyone aware of existing PDB (or other format) file about the =
>morphological structure of membrane-cell calcium-controlled potassium =
>channel with low conductance? Can anyone point me to some references?
At the moment I know only about a single structure of a
potassium channel. However, it is only a part of the channel.
The part responsible for gating is missing:
HEADER POTASSIUM CHANNEL 23-JUL-98 1BL8
TITLE POTASSIUM CHANNEL (KCSA) FROM STREPTOMYCES LIVIDANS
COMPND MOL_ID: 1;
COMPND 2 MOLECULE: POTASSIUM CHANNEL PROTEIN;
COMPND 3 CHAIN: A, B, C, D;
COMPND 4 FRAGMENT: RESIDUES 1 - 125;
COMPND 5 ENGINEERED: YES;
COMPND 6 MUTATION: L90C;
COMPND 7 BIOLOGICAL_UNIT: HOMOTETRAMER
SOURCE MOL_ID: 1;
SOURCE 2 ORGANISM_SCIENTIFIC: STREPTOMYCES LIVIDANS;
SOURCE 3 EXPRESSION_SYSTEM: ESCHERICHIA COLI;
SOURCE 4 EXPRESSION_SYSTEM_STRAIN: XL-1 BLUE;
SOURCE 5 EXPRESSION_SYSTEM_PLASMID: PQE60;
SOURCE 6 EXPRESSION_SYSTEM_GENE: KCSA
KEYWDS POTASSIUM CHANNEL, INTEGRAL MEMBRANE PROTEIN
EXPDTA X-RAY DIFFRACTION
AUTHOR D.A.DOYLE,J.M.CABRAL,R.A.PFUETZNER,A.KUO,J.M.GULBIS,
AUTHOR 2 S.L.COHEN,B.T.CHAIT,R.MACKINNON
REVDAT 1 29-JUL-98 1BL8 0
JRNL AUTH D.A.DOYLE,J.M.CABRAL,R.A.PFUETZNER,A.KUO,
JRNL AUTH 2 J.M.GULBIS,S.L.COHEN,B.T.CHAIT,R.MACKINNON
JRNL TITL THE STRUCTURE OF THE POTASSIUM CHANNEL: MOLECULAR
JRNL TITL 2 BASIS OF K+ CONDUCTION AND SELECTIVITY
JRNL REF SCIENCE V. 280 69 1998
JRNL REFN ASTM SCIEAS US ISSN 0036-8075
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Eberhard von Kitzing
Abteilung Zellphysiologie
Max-Planck-Institut fuer Medizinische Forschung
Jahnstr. 29
D 69120 Heidelberg Tel: +49 6221 486 467
Germany FAX: +49 6221 486 459
email: vkitzing -AatT- mpimf-heidelberg.mpg.de
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