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FEBS Lett. 1997 Mar 10;404(2-3):208-10.

The structure of porin from Paracoccus denitrificans at 3.1 A resolution.

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1
Universität Konstanz, Fakultät für Biologie, Germany.

Abstract

The crystal structure of a non-specific porin from Paracoccus denitrificans at 3.1 A resolution has been solved by molecular replacement using the porin from Rhodopseudomonas blastica as the search model. Paracoccus porin is very similar to other non-specific porins of known structure: a trimer of 16 stranded beta-barrels each with a central pore constricted by a long extracellular loop folding back against the barrel wall. The distinctive distribution of charged residues of this non-specific porin contributes to understanding the relation between structure and ion selectivity.

PMID:
9119065
DOI:
10.1016/s0014-5793(97)00131-2
[Indexed for MEDLINE]
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