http://barf.jcowboy.org Trends in cell biology recent publications en-us http://barf.jcowboy.org/pubmed.gif http://barf.jcowboy.org http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=20801657 Publication Date: 2010 Aug 27 PMID: 20801657<br/>Authors: Garcia, H. G. - Sanchez, A. - Kuhlman, T. - Kondev, J. - Phillips, R.<br/>Journal: Trends Cell Biol<br/><br/>The study of transcription has witnessed an explosion of quantitative effort both experimentally and theoretically. In this article we highlight some of the exciting recent experimental efforts in the study of transcription with an eye to the demands that such experiments put on theoretical models of transcription. From a modeling perspective, we focus on two broad classes of models: the so-called thermodynamic models that use statistical mechanics to reckon the level of gene expression as probabilities of promoter occupancy, and rate-equation treatments that focus on the temporal evolution of the activity of a given promoter and that make it possible to compute the distributions of messenger RNA and proteins. We consider several appealing case studies to illustrate how quantitative models have been used to dissect transcriptional regulation.<br/><br/>post to: <a href = "http://www.citeulike.org/posturl?url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Fcmd%3DRetrieve%26db%3DPubMed%26dopt%3DAbstract%26list_uids%3D20801657&title=Entrez+Pubmed">CiteULike</a> http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=20724160 Publication Date: 2010 Aug 17 PMID: 20724160<br/>Authors: Salomoni, P. - Calegari, F.<br/>Journal: Trends Cell Biol<br/><br/><br/><br/>post to: <a href = "http://www.citeulike.org/posturl?url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Fcmd%3DRetrieve%26db%3DPubMed%26dopt%3DAbstract%26list_uids%3D20724160&title=Entrez+Pubmed">CiteULike</a> http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=20724159 Publication Date: 2010 Aug 17 PMID: 20724159<br/>Authors: Gibb, S. - Maroto, M. - Dale, J. K.<br/>Journal: Trends Cell Biol<br/><br/>The vertebrate segmentation clock is a molecular oscillator that regulates the periodicity of somite formation. Three signalling pathways have been proposed to underlie the molecular mechanism of the oscillator, namely the Notch, Wnt and Fgf pathways. Characterizing the roles and hierarchy of these three pathways in the oscillator mechanism is currently the focus of intense research. Recent publications report the first identification of a molecular mechanism involved in the regulation of the pace of this oscillator. We review these and other recent findings regarding the interaction between the three pathways in the oscillator mechanism that have significantly expanded our understanding of the segmentation clock.<br/><br/>post to: <a href = "http://www.citeulike.org/posturl?url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Fcmd%3DRetrieve%26db%3DPubMed%26dopt%3DAbstract%26list_uids%3D20724159&title=Entrez+Pubmed">CiteULike</a> http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=20719512 Publication Date: 2010 Aug 16 PMID: 20719512<br/>Authors: Lenos, M. G. - Tsaniklidou, S. M.<br/>Journal: Trends Cell Biol<br/><br/><br/><br/>post to: <a href = "http://www.citeulike.org/posturl?url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Fcmd%3DRetrieve%26db%3DPubMed%26dopt%3DAbstract%26list_uids%3D20719512&title=Entrez+Pubmed">CiteULike</a>