WebMar 21, 1997 · Maltoporin (LamB) facilitates the diffusion of maltodextrins across the outer membrane of E. coli. The structural basis for the specificity of the channel is investigated by X-ray structure analysis of maltoporin in complex with the disaccharides sucrose, trehalose, and melibiose. The sucrose complex, determined to 2.4 A resolution, shows that ... WebWe have determined the sequence of the lamB gene from Klebsiella pneumoniae. It encodes the precursor to the LamB protein, a 429 amino acid polypeptide with maltoporin function. Comparison with the Escherichia coli LamB protein reveals a high degree of homology, with 325 residues strictly identical. The N-terminal third of the protein is the …
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WebA polypeptide hormone secreted by the intermediate lobe of the hypophysis in humans (in neurohypophysis in certain other species), that causes dispersion of melanin by … WebMaltoporin Details Name Maltoporin Synonyms Lambda receptor protein malB Maltose-inducible porin Gene Name lamB Organism Escherichia coli (strain K12) Amino acid … gray diamond rug
Translocation mechanism of long sugar chains across the maltoporin ...
WebOct 1, 2004 · Maltoporin: sugar for physics and biology. Maltoporin has been studied for over 50 years. This trimeric bacterial outer membrane channel allows permeation of sugars such as maltodextrins. Its structure is described and functional studies resulting in a mechanistic transport model are critically discussed. WebOct 5, 2012 · The LamB protein is a well-characterized example of a porin, termed as a maltoporin, because it is required for growth on limiting concentrations of maltose. The protein coded by gene lamB of the maltose operon also serves as receptors for several phages, such as λ, K10 and TP1 [ 48 , 49 , 50 ]. WebFeb 1, 1996 · Results The crystal structures of maltoporin in complex with maltose, maltotriose and maltohexaose reveal an extended binding site within the maltoporin channel. The maltooligosaccharides are in apolar van der Waals contact with the ‘greasy slide’, a hydrophobic path that is composed of aromatic residues and located at the … gray diamond earrings