Conserved Protein Domain Family

cl11629: KdgM Superfamily 
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Oligogalacturonate-specific porin protein (KdgM)
This family consists of several bacterial proteins which are homologous to the oligogalacturonate-specific porin protein KdgM from Erwinia chrysanthemi. The phytopathogenic Gram-negative bacteria Erwinia chrysanthemi secretes pectinases, which are able to degrade the pectic polymers of plant cell walls, and uses the degradation products as a carbon source for growth. KdgM is a major outer membrane protein, whose synthesis is strongly induced in the presence of pectic derivatives. KdgM behaves like a voltage-dependent porin that is slightly selective for anions and that exhibits fast block in the presence of trigalacturonate. In contrast to most porins, KdgM seems to be monomeric.
Accession: cl11629
PSSM Id: 416341
Name: KdgM
Created: 29-May-2009
Updated: 24-Nov-2020
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