2j5u: Difference between revisions

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|ACTIVITY=  
|ACTIVITY=  
|GENE=  
|GENE=  
|DOMAIN=
|RELATEDENTRY=
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2j5u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2j5u OCA], [http://www.ebi.ac.uk/pdbsum/2j5u PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2j5u RCSB]</span>
}}
}}


'''MREC LYSTERIA MONOCYTOGENES'''
'''MREC LYSTERIA MONOCYTOGENES'''


==Overview==
The bacterial actin homologue MreB forms helical filaments in the cytoplasm of rod-shaped bacteria where it helps maintain the shape of the cell. MreB is co-transcribed with mreC that encodes a bitopic membrane protein with a major periplasmic domain. Like MreB, MreC is localized in a helical pattern and might be involved in the spatial organization of the peptidoglycan synthesis machinery. Here, we present the structure of the major, periplasmic part of MreC from Listeria monocytogenes at 2.5 A resolution. MreC forms a dimer through an intimate contact along an N-terminal alpha-helix that connects the transmembrane region with two C-terminal beta-domains. The translational relationship between the molecules enables, in principle, filament formation. One of the beta-domains shows structural similarity to the chymotrypsin family of proteins and possesses a highly conserved Thr Ser dipeptide. Unexpectedly, mutagenesis studies show that the dipeptide is dispensable for maintaining cell shape and viability in both Escherichia coil and Bacillus subtilis. Bacterial two-hybrid experiments reveal that MreC Interacts with high-molecular-weight penicillin-binding proteins (PBPs), rather than with low-molecular-weight endo- and carboxypeptidases, indicating that MreC might act as a scaffold to which the murein synthases are recruited in order to spatially organize the synthesis of new cell wall material. Deletion analyses indicate which domains of B. subtilis MreC are required for interaction with MreD as well as with the PBPs.


==About this Structure==
==About this Structure==
2J5U is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Listeria_monocytogenes Listeria monocytogenes]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2J5U OCA].  
2J5U is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Listeria_monocytogenes Listeria monocytogenes]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2J5U OCA].  
==Reference==
Dimeric structure of the cell shape protein MreC and its functional implications., van den Ent F, Leaver M, Bendezu F, Errington J, de Boer P, Lowe J, Mol Microbiol. 2006 Dec;62(6):1631-42. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17427287 17427287]
[[Category: Listeria monocytogenes]]
[[Category: Listeria monocytogenes]]
[[Category: Single protein]]
[[Category: Single protein]]
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[[Category: cell shape regulation]]
[[Category: cell shape regulation]]


''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 17:37:37 2008''
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 03:53:24 2008''

Revision as of 00:53, 31 March 2008

File:2j5u.gif


Drag the structure with the mouse to rotate
2j5u, resolution 2.5Å
Resources: FirstGlance, OCA, PDBsum, RCSB
Coordinates: save as pdb, mmCIF, xml



MREC LYSTERIA MONOCYTOGENES


About this Structure

2J5U is a Single protein structure of sequence from Listeria monocytogenes. Full crystallographic information is available from OCA.

Page seeded by OCA on Mon Mar 31 03:53:24 2008

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