1MPN

MALTOPORIN MALTOTRIOSE COMPLEX

Summary for 1MPN

Entry DOI	10.2210/pdb1mpn/pdb
Related PRD ID	PRD_900009
Descriptor	MALTOPORIN, alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose, MAGNESIUM ION (3 entities in total)
Functional Keywords	membrane protein, sugar transport, specific porin, beta barrel
Biological source	Escherichia coli
Cellular location	Cell outer membrane ; Multi-pass membrane protein : P02943
Total number of polymer chains	3
Total formula weight	143863.58
Authors	Dutzler, R.,Schirmer, T. (deposition date: 1996-01-11, release date: 1997-03-12, Last modification date: 2020-07-29)
Primary citation	Dutzler, R.,Wang, Y.F.,Rizkallah, P.J.,Rosenbusch, J.P.,Schirmer, T. Crystal structures of various maltooligosaccharides bound to maltoporin reveal a specific sugar translocation pathway. Structure, 4:127-134, 1996 Cited by PubMed Abstract: Maltoporin (which is encoded by the lamB gene) facilitates the translocation of maltodextrins across the outer membrane of E. coli. In particular, it is indispensable for the transport of long maltooligosaccharides, as these do not pass through non-specific porins. An understanding of this intriguing capability requires elucidation of the structural basis. PubMed: 8805519 DOI: 10.1016/S0969-2126(96)00016-0 PDB entries with the same primary citation
Experimental method	X-RAY DIFFRACTION (3.2 Å)

Structure validation