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| [[Image:1sru.gif|left|200px]] | | {{Seed}} |
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| {{STRUCTURE_1sru| PDB=1sru | SCENE= }} | | {{STRUCTURE_1sru| PDB=1sru | SCENE= }} |
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| '''Crystal structure of full length E. coli SSB protein'''
| | ===Crystal structure of full length E. coli SSB protein=== |
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| ==Overview==
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| The crystal structure of full-length homotetrameric single-stranded DNA (ssDNA)-binding protein from Escherichia coli (SSB) has been determined to 3.3 A resolution and reveals that the entire C-terminal domain is disordered even in the presence of ssDNA. To our knowledge, this is the first experimental evidence that the C-terminal domain of SSB may be inherently disordered. The N-terminal DNA-binding domain of the protein is well ordered and is virtually indistinguishable from the previously determined structure of the chymotryptic fragment of SSB (SSBc) in complex with ssDNA. The absence of observable interactions with the core protein and the crystal packing of SSB together suggest that the disordered C-terminal domains likely extend laterally away from the DNA- binding domains, which may facilitate interactions with components of the replication machinery in vivo. The structure also reveals the conservation of molecular contacts between successive tetramers mediated by the L(45) loops as seen in two other crystal forms of SSBc, suggesting a possible functional relevance of this interaction. | | The line below this paragraph, {{ABSTRACT_PUBMED_15169953}}, adds the Publication Abstract to the page |
| | (as it appears on PubMed at http://www.pubmed.gov), where 15169953 is the PubMed ID number. |
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| | {{ABSTRACT_PUBMED_15169953}} |
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| ==About this Structure== | | ==About this Structure== |
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| [[Category: Waksman, G.]] | | [[Category: Waksman, G.]] |
| [[Category: Replication]] | | [[Category: Replication]] |
| ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 09:04:11 2008'' | | |
| | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 15:22:57 2008'' |