2ff4: Difference between revisions
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[[Image:2ff4.gif|left|200px]] | [[Image:2ff4.gif|left|200px]] | ||
'''Mycobacterium tuberculosis EmbR in complex with low affinity phosphopeptide''' | {{Structure | ||
|PDB= 2ff4 |SIZE=350|CAPTION= <scene name='initialview01'>2ff4</scene>, resolution 1.90Å | |||
|SITE= | |||
|LIGAND= | |||
|ACTIVITY= | |||
|GENE= embR ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1773 Mycobacterium tuberculosis]) | |||
}} | |||
'''Mycobacterium tuberculosis EmbR in complex with low affinity phosphopeptide''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
2FF4 is a [ | 2FF4 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2FF4 OCA]. | ||
==Reference== | ==Reference== | ||
Molecular structure of EmbR, a response element of Ser/Thr kinase signaling in Mycobacterium tuberculosis., Alderwick LJ, Molle V, Kremer L, Cozzone AJ, Dafforn TR, Besra GS, Futterer K, Proc Natl Acad Sci U S A. 2006 Feb 21;103(8):2558-63. Epub 2006 Feb 13. PMID:[http:// | Molecular structure of EmbR, a response element of Ser/Thr kinase signaling in Mycobacterium tuberculosis., Alderwick LJ, Molle V, Kremer L, Cozzone AJ, Dafforn TR, Besra GS, Futterer K, Proc Natl Acad Sci U S A. 2006 Feb 21;103(8):2558-63. Epub 2006 Feb 13. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16477027 16477027] | ||
[[Category: Mycobacterium tuberculosis]] | [[Category: Mycobacterium tuberculosis]] | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
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[[Category: winged-helix; tetratricopeptide repeat; beta-sandwich]] | [[Category: winged-helix; tetratricopeptide repeat; beta-sandwich]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 16:51:40 2008'' | ||
Revision as of 17:51, 20 March 2008
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| , resolution 1.90Å | |||||||
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| Gene: | embR (Mycobacterium tuberculosis) | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Mycobacterium tuberculosis EmbR in complex with low affinity phosphopeptide
OverviewOverview
Ser/Thr phosphorylation has emerged as a critical regulatory mechanism in a number of bacteria, including Mycobacterium tuberculosis. This problematic pathogen encodes 11 eukaryotic-like Ser/Thr kinases, yet few substrates or signaling targets have been characterized. Here, we report the structure of EmbR (2.0 A), a putative transcriptional regulator of key arabinosyltransferases (EmbC, -A, and -B), and an endogenous substrate of the Ser/Thr-kinase PknH. EmbR presents a unique domain architecture: the N-terminal winged-helix DNA-binding domain forms an extensive interface with the all-helical central bacterial transcriptional activation domain and is positioned adjacent to the regulatory C-terminal forkhead-associated (FHA) domain, which mediates binding to a Thr-phosphorylated site in PknH. The structure in complex with a phospho-peptide (1.9 A) reveals a conserved mode of phospho-threonine recognition by the FHA domain and evidence for specific recognition of the cognate kinase. The present structures suggest hypotheses as to how EmbR might propagate the phospho-relay signal from its cognate kinase, while serving as a template for the structurally uncharacterized Streptomyces antibiotic regulatory protein family of transcription factors.
About this StructureAbout this Structure
2FF4 is a Protein complex structure of sequences from Mycobacterium tuberculosis. Full crystallographic information is available from OCA.
ReferenceReference
Molecular structure of EmbR, a response element of Ser/Thr kinase signaling in Mycobacterium tuberculosis., Alderwick LJ, Molle V, Kremer L, Cozzone AJ, Dafforn TR, Besra GS, Futterer K, Proc Natl Acad Sci U S A. 2006 Feb 21;103(8):2558-63. Epub 2006 Feb 13. PMID:16477027
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