Linked Life Data

17395359

Source:http://linkedlifedata.com/resource/pubmed/id/17395359

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2007-5-8
pubmed:abstractText
Regulating gene expression directly at the mRNA level represents a novel approach to control cellular processes in all organisms. In this respect, an RNA-binding protein plays a key role by targeting the mRNA to regulate the expression by attenuation or an anti-termination mechanism only in the presence of their cognate ligands. Although many proteins are known to use these mechanisms to regulate the gene expression, no structural insights have been revealed to date to explain how these proteins trigger the conformation for the recognition of RNA. This review describes the activated conformation of HutP, brought by the coordination of L-histidine and Mg(2+) ions, based on our recently solved crystal structures [uncomplexed HutP, HutP-Mg(2+), HutP-L-histidine, HutP-Mg(2+)-L-histidine, HutP-Mg(2+)-L-histidine-RNA]. Once the HutP is activated, the protein binds specifically to bases within the terminator region, without undergoing further structural rearrangement. Also, a high resolution (1.48 A) crystal structure of the quaternary complex containing the three GAG motifs is presented. This analysis clearly demonstrates that the first base in the UAG motifs is not important for the function and is consistent with our previous observations.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0301-4622
pubmed:author
pubmed:issnType
Print
pubmed:volume
128
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1-12
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Structural insights of HutP-mediated regulation of transcription of the hut operon in Bacillus subtilis.
pubmed:affiliation
Biometals Laboratory and Advanced Protein Crystallography Research Group, RIKEN Harima Institute at SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan. tskvel@spring8.or.jp
pubmed:publicationType
Journal Article, Review