The structure of porin from Paracoccus denitrificans at 3.1 A resolution.
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.
Hirsch
A
A
Universität Konstanz, Fakultät für Biologie, Germany.
Breed
J
J
Saxena
K
K
Richter
O M
OM
Ludwig
B
B
Diederichs
K
K
Welte
W
W
D000595:Amino Acid Sequence; D018360:Crystallography, X-Ray; D008958:Models, Molecular; D010231:Paracoccus denitrificans; D018272:Porins / Q000737:chemistry*; D017433:Protein Structure, Secondary; D012241:Rhodopseudomonas
D018272:Porins