Author
Phillip A. Sharp
Other affiliations: McGovern Institute for Brain Research, Medical Research Council, California Institute of Technology ...read more
Bio: Phillip A. Sharp is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: RNA & RNA splicing. The author has an hindex of 172, co-authored 614 publications receiving 117126 citations. Previous affiliations of Phillip A. Sharp include McGovern Institute for Brain Research & Medical Research Council.
Topics: RNA, RNA splicing, Gene, Transcription (biology), DNA
Papers published on a yearly basis
Papers
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TL;DR: These consensus indicate that the U12-type spliceosome may be more dinucleotides were almost universal, suggesting that inclosely related togroup II introns than the more common trons were of a common origin and excised from preU2- type spliceOSome.
283 citations
01 Mar 2017
TL;DR: It is proposed that a phase separation model explains established and recently described features of transcriptional control, including the formation of super-enhancers, the sensitivity ofsuper-enhancer to perturbation, the transcriptional bursting patterns of enhancers, and the ability of an enhancer to produce simultaneous activation at multiple genes.
Abstract: Phase-separated multi-molecular assemblies provide a general regulatory mechanism to compartmentalize biochemical reactions within cells. We propose that a phase separation model explains established and recently described features of transcriptional control. These features include the formation of super-enhancers, the sensitivity of super-enhancers to perturbation, the transcriptional bursting patterns of enhancers, and the ability of an enhancer to produce simultaneous activation at multiple genes. This model provides a conceptual framework to further explore principles of gene control in mammals.
281 citations
01 Apr 2013
TL;DR: A class of circular RNAs that regulates microRNAs is abundant in mammalian cells, and like protein-coding RNAs, appear to be linear molecules with 5′ and 3′ termini, reflecting the defined start and end points of RNA polymerase on the DNA template.
Abstract: Most genetic information is expressed as, and transacted by, proteins. Yet, less than 2% of the human genome actually codes for proteins, prompting a search for functions for the other 98% of the genome, once considered to be mostly “junk DNA.” Transcription is pervasive, however, and high-throughput sequencing has identified tens of thousands of distinct RNAs generated from the non—protein—coding portion of the genome ( 1 ). These so-called noncoding RNAs vary in length, but like protein-coding RNAs, appear to be linear molecules with 5′ and 3′ termini, reflecting the defined start and end points of RNA polymerase on the DNA template. But do all RNAs have to be linear?
280 citations
TL;DR: An online ESE analysis tool is described that annotates RESCUE-ESE hexamers in vertebrate exons and can be used to predict splicing phenotypes by identifying sequence changes that disrupt or alter predicted ESEs.
Abstract: A typical gene contains two levels of information: a sequence that encodes a particular protein and a host of other signals that are necessary for the correct expression of the transcript. While much attention has been focused on the effects of sequence variation on the amino acid sequence, variations that disrupt gene processing signals can dramatically impact gene function. A variation that disrupts an exonic splicing enhancer (ESE), for example, could cause exon skipping which would result in the exclusion of an entire exon from the mRNA transcript. RESCUE-ESE, a computational approach used in conjunction with experimental validation, previously identified 238 candidate ESE hexamers in human genes. The RESCUE-ESE method has recently been implemented in three additional species: mouse, zebrafish and pufferfish. Here we describe an online ESE analysis tool (http://genes.mit.edu/burgelab/rescue-ese/) that annotates RESCUE-ESE hexamers in vertebrate exons and can be used to predict splicing phenotypes by identifying sequence changes that disrupt or alter predicted ESEs.
280 citations
TL;DR: Computer modeling suggested that transcription factors with novel sequence specificities could be designed by combining known DNA binding domains, and construction of a fusion protein, ZFHD1, found that it bound optimally to a sequence containing adjacent homeodomain and zinc finger subsites.
Abstract: Computer modeling suggested that transcription factors with novel sequence specificities could be designed by combining known DNA binding domains. This structure-based strategy was tested by construction of a fusion protein, ZFHD1, that contained zinc fingers 1 and 2 from Zif268, a short polypeptide linker, and the homeodomain from Oct-1. The fusion protein bound optimally to a sequence containing adjacent homeodomain (TAATTA) and zinc finger (NGGGNG) subsites. When fused to an activation domain, ZFHD1 regulated promoter activity in vivo in a sequence-specific manner. Analysis of known protein-DNA complexes suggests that many other DNA binding proteins could be designed in a similar fashion.
279 citations
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TL;DR: Although they escaped notice until relatively recently, miRNAs comprise one of the more abundant classes of gene regulatory molecules in multicellular organisms and likely influence the output of many protein-coding genes.
32,946 citations
TL;DR: The results of an international collaboration to produce and make freely available a draft sequence of the human genome are reported and an initial analysis is presented, describing some of the insights that can be gleaned from the sequence.
Abstract: The human genome holds an extraordinary trove of information about human development, physiology, medicine and evolution. Here we report the results of an international collaboration to produce and make freely available a draft sequence of the human genome. We also present an initial analysis of the data, describing some of the insights that can be gleaned from the sequence.
22,269 citations
28 Jul 2005
TL;DR: PfPMP1）与感染红细胞、树突状组胞以及胎盘的单个或多个受体作用，在黏附及免疫逃避中起关键的作�ly.
Abstract: 抗原变异可使得多种致病微生物易于逃避宿主免疫应答。表达在感染红细胞表面的恶性疟原虫红细胞表面蛋白1（PfPMP1）与感染红细胞、内皮细胞、树突状细胞以及胎盘的单个或多个受体作用，在黏附及免疫逃避中起关键的作用。每个单倍体基因组var基因家族编码约60种成员，通过启动转录不同的var基因变异体为抗原变异提供了分子基础。
18,940 citations
TL;DR: The current understanding of miRNA target recognition in animals is outlined and the widespread impact of miRNAs on both the expression and evolution of protein-coding genes is discussed.
18,036 citations
TL;DR: In this paper, a procedure for extracting plasmid DNA from bacterial cells is described, which is simple enough to permit the analysis by gel electrophoresis of 100 or more clones per day, yet yields DNA which is pure enough to be digestible by restriction enzymes.
Abstract: A procedure for extracting plasmid DNA from bacterial cells is described. The method is simple enough to permit the analysis by gel electrophoresis of 100 or more clones per day yet yields plasmid DNA which is pure enough to be digestible by restriction enzymes. The principle of the method is selective alkaline denaturation of high molecular weight chromosomal DNA while covalently closed circular DNA remains double-stranded. Adequate pH control is accomplished without using a pH meter. Upon neutralization, chromosomal DNA renatures to form an insoluble clot, leaving plasmid DNA in the supernatant. Large and small plasmid DNAs have been extracted by this method.
13,805 citations