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Splicing in Medical News

Master molecular switch may prevent the spread of cancer cells to distant sites in the body

... The master-switch is called the Epithelial splicing Regulatory Protein, and comes in two closely ... genes are spliced together. This is achieved by splicing different exons -- the sequence of DNA that codes ... of Medicine. "ESRP1 and ESRP2 are necessary for splicing FGFR2 mRNA in the epithelial cell manner. This is ...

Research Shows Why Statins Don't Work for Everyone

... exon when the protein is assembled. But depending on how this HMGCR splicing occurs, a statin drug has a better or worse chance of working as it should ... the statin response than HMGCR. So, testing patients for the alternative splicing version of the protein before writing a statin prescription probably isn't ...

Damon Runyon Cancer Research Foundation awards prestigious fellowships to 17 top young scientists

... gene may be expressed as multiple, distinct protein forms. Gaining a better understanding of this process is important, as disruption of normal splicing can give rise to cancer. Matthew F. Calabrese, PhD [HHMI Fellow] with his sponsor Brenda A. Schulman, PhD, at St. Jude Children's Research ...

Mayo Genomic Discovery: Protecting Kidney Function During Heart Failure

... because many heart failure patients experience low blood pressure and BNP lowered it further. The Mayo investigators discovered an alternative splicing (AS) of BNP in messenger RNA (produced by the same gene). When they shortened the amino acid sequence of ASBNP for testing, they found that it had ...

Genes Seem to Affect Tissues Differently

... be important to disease formation. "A genetic variant might influence the expression of a gene or the type of protein that is made because of splicing changes in brain cells but not in blood cells, or in blood cells but not brain cells," senior author David Goldstein, director of the Center for ...

Penn researchers gain new insights on spinal muscular atrophy

... snRNP repertoire or the 'snRNPertoire,'" says Dreyfuss. "When SMN levels are reduced, the biochemical balance needed to make the snRNP complexes for splicing RNA is impaired." The Dreyfuss lab looked at reduced SMN levels in cultured cells and mice and found that changes in levels of the snRNPs, as well ...

Gene newly linked to inherited ALS may also play role in common dementia

... mouse will generate a model for ALS-like pathology. If this affirms the link, they will begin tracing the effects of the mutation on genes whose splicing is regulated by TDP-43, working to identify key links in the chain reaction that leads to motor neuron death. These links may become new targets for ...

JCI table of contents: Nov. 15, 2007

... authors therefore suggested that it might be possible to use this approach to treat myotonia in individuals with DM1. TITLE: Correction of ClC-1 splicing eliminates chloride channelopathy and myotonia in mouse models of myotonic dystrophy AUTHOR CONTACT: Charles A. Thornton University of ...

Loss of gene leads to protein splicing and buildup of toxic proteins in neurons

... In the Sept. 26 issue of the Journal of Neuroscience, the scientists demonstrate that absence of a gene known as progranulin leads to errant splicing of a protein that usually operates within the nucleus of a nerve cell (neuron). When cut these proteins move into the body of the cell, and begin to ...

Alternative Splicing in Neuronal Development

... (UCLA) and colleagues detail how alternative splicing is reprogrammed during neuronal development. Alternative splicing refers to the processing of an RNA transcript ... (PTB) is a well-known inhibitor of alternative splicing in various cell types. A neuronal version of PTB ...

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Splicing in Medical Technology

Getting More From Whole-Transcript Microarrays

... shows scientists how to monitor alternative splicing activity on a genome-wide scale, without ... exon microarray technologies. Alternative splicing produces a variety of mRNA transcripts from a single gene by splicing together different combinations of exons, which ...

ExonHit Reports Proof-of-Concept in Breast Cancer Diagnostic Using its SpliceArray(TM) Platform

... cancer through the analysis of alternative RNA splicing [1]. Study data demonstrate that exons are ... exon level. They also provide a comprehensive RNA splicing analysis across the entire human genome and ... Company's biomarker discovery process. RNA splicing represents a key regulatory mechanism of gene ...

Families of Spinal Muscular Atrophy Announces Latest Developments on Three SMA Drug Discovery Programs

... for the previous three years for our work on tetracycline derivatives as a potential treatment of SMA. These compounds are intended to correct SMN2 splicing and in turn increase SMN protein levels. Using funding from FSMA to generate the preliminary data for a grant application, Paratek has been ...

Amicus Therapeutics Presents Data from Clinical Ex Vivo Response Study and Phase 1 Studies of AT2220

... common splice site mutation IVS1-13T>G. It has been reported that more than 80% of Caucasian adult Pompe patients have at least 1 copy of this common splicing mutation. Phase 1 AT2220 data A total of 72 healthy volunteers were treated in three double-blind, placebo-controlled, dose escalation Phase 1 ...
Splicing in Medical Dictionary

Partial

... mutation s that cause misfolding were only partial ly suppressed. The splicing activity of the mutants was much lower than the wild type at low temperature s, suggesting that splicing in vivo is also limited by misfolding of the RNA. Iain Anderson, ...

Cold

... the cold sensitivity of the mutant pre-rRNAs, compared to precursors with non-rRNA exons. Thus, the rRNA exons are important for the mechanism of splicing facilitation in vivo. illness and then seem to disappear, while remaining latent and later causing another, sometimes much more severe, form of ...
Splicing in Biological News

A splice of life

... Daniel Pomeranz Krummel. "The process of RNA splicing is vital to human cell development and survival," ... with regards to its size, but the process of RNA splicing that occurs in our cells is different. The ... cells have evolved to utilize this process of RNA splicing to generate a whole other dimension to the ...

CSHL scientists clarify editing error underlying genetic neurodegenerative disease

... cellular function called RNA splicing. RNA splicing is an essential step in the process in cell ... shorthands: A, U, G and C. The cell's RNA splicing machinery is correctly guided to the splice site ... target RNA. "In the three decades since RNA splicing was discovered, scientists have believed that a ...

Case Western Reserve finds mechanism underlying alt. splicing of premessenger RNA into messenger RNA

... code that in turn create mistakes in alternative splicing may be considerably more complicated than ... titled "Dynamic regulation of alternative splicing by silencers that modulate 5' splice site ... Yang Yu, Ph.D. was the lead author. "Regular" splicing is the process by which long strings of ...

Cold Spring Harbor Laboratory scientists trace a novel way cells are disrupted in cancer

... that, in ways not yet fully understood, this same splicing factor acts on a group of other molecules that ... and his colleagues found that several known splicing factors are present at higher-than-normal levels ... to make higher-than-normal levels of this splicing factor. Changes in the PI3K-mTOR Pathway ...

CSHL team traces extensive networks regulating alternative RNA splicing

... biologists and geneticists call RNA splicing. splicing is a key step in the multi-step process that ... Poorly understood until recently, the splicing machinery and the networks that control it are ... called Fox-1 and Fox-2--which are two among many splicing factors--control regulatory networks involving ...

Deep sequencing study reveals new insights into human transcriptome

... study. In addition, a global survey of mRNA splicing events identified 94,241 splice junctions, of ... "A Global View of Gene Activity and Alternative splicing by Deep Sequencing of the Human Transcriptome", ... We provide here global features of alternative splicing events in human cell lines. Such a comparison of ...

Scientists find a fingerprint of evolution across the human genome

... the DNA before the protein is made. Signs of splicing Previous researchers assumed that mutations ... important. In addition to demonstrating how splicing affects genetic evolution, the statistical ... to co-author Adrian Krainer, a CSHL professor and splicing expert, the exciting thing will be to ...

Cold Spring Harbor Laboratory scientists devise potential approach to treat spinal muscular atrophy

... an expert on the topic. Alternative Ways of splicing RNA When he first learned about SMA, Dr. ... because I realized that what we knew about splicing could be applied" to the disease. All the researchers needed to do was to alter the splicing of the second copy of the gene to include the ...

Deadly genetic disease prevented before birth in zebrafish

... and the researchers worked with are caused by splicing defects, or an interruption in genetic code. The ... If we can make cells ignore the gibberish, or the splicing defect, the fetus can develop normally." Up to 20 percent of genetic diseases are caused by splicing defects, Madsen said, so this treatment method ...

University of Toronto finds humans and chimps differ at level of gene splicing

... but we wanted to find out if it could be the splicing process that accounts for some of these ... was that six to eight per cent of the alternative splicing events we looked at were showing differences, ... And those genes that showed differences in splicing are associated with a range of important ...

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Splicing in Biological Technology

Isis and Partners Present New Research at the American Association for Cancer Research 2009 Annual Meeting

... and titled "Molecular Control of RNA Alternative splicing by sigma RNA, a Marker for Carcinomas" showed that antisense inhibition of Malat-1 altered the splicing of multiple mRNAs. Altering splicing results in the production of different variations ...

Seneca Valley High School Student Receives Science Award From MedImmune

... Li for her project entitled "Discovering New splicing Forms in von Willebrand Factor to Understand ... and understanding the application of alternative splicing in individuals. VWD is an inherited bleeding ... was expected to have around 22 to 23 alternative splicing forms. With ...

In vivo visualization of alternative splicing

... developmentally regulated alternative mRNA splicing in a living organism. Dr. Hidehito Kuroyanagi and ... University engineered a transgenic alternative splicing reporter system to monitor the developmentally regulated switching of let-2 alternative splicing in live C. elegans worms. ...

VIRxSYS Publishes New Study on RNA Therapy

... was only expressed in liver cells, and not in other cells, which could have triggered an immune response. The technology used to perform the albumin splicing process is owned by VIRxSYS and is known as spliceosomal mediated RNA trans- splicing, or SMaRT(TM). VIRxSYS now has 39 publications in top tier ...

ExonHit Launches Rat Genome SpliceArray(TM) Products to Expand High Resolution Gene Expression Profiling for use in Disease Modeling and Toxicogenomics

... on the Agilent Technologies and Affymetrix microarray platforms, now expand our product offering and enable researchers to leverage alternative splicing discovery in the rat model system. "ExonHit continues to grow its catalog of arrays for it genomics services. This most recent addition will expand ...

Jivan Awarded US Patent #7,340,349 for Splice Array Analysis

... for DNA microarrays to detect alternative splicing," said Subha Srinivasan, PhD, CEO of JIVAN. "Powerful data analysis is critical to the adoption of splicing arrays, the next generation of expression arrays." The '349 Patent fits in JIVAN's broader strategy of providing a complete solution for splice ...

The GeneZoo or the GeneJungle?

... sequence contiguous to the poly-A tail to perform the clustering, splicing is not a significant factor. We could choose to ignore splice ... is more rigorous, and we rely instead on there being little splicing near the 3 ends. Fig.1 ...

Visualizing siRNA in Mammalian Cells: Fluorescence Analysis of the RNAi Effect

... appear to occur in mammalian cells since siRNA made against one splice form of a particular gene does not silence other splicing variants (Tom Tuschl, personal communication, March 2002). Within the cell, siRNA becomes associated with an RNA-induced ...

New Tools for Small RNA Analysis

... play critical roles in a variety of cellular processes, from regulation of mRNA translation, pre-mRNA splicing or transcription to chromosome maintenance and gene imprinting. In addition, two novel classes of small ...

Efficient Cellular Fractionation for RNA and Protein Isolation

... nuclear intronic sequences. Figure 2. Analysis of Fibronectin pre-mRNA Splicing. The mutually exclusive alternative splicing of fibronectin exon EIIIb was analyzed by RT-PCR (35 cycles) using total (T), cytoplasmic (C), and nuclear (N) RNA isolated ...

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Splicing in Biological Products

Goat Anti-PAX3 Polyclonal Antibody, Unconjugated from GeneTex

Description:... t(2;13)(q35;q14), which represents a fusion between PAX3 and the forkhead gene, is a frequent finding in alveolar rhabdomyosarcoma. Alternative splicing results in transcripts encoding isoforms with different C-termini. Immunogen: Synthetic peptide: TTLAGAVPRMM, corresponding to N terminal amino ...
Company:GeneTex

Custom Splice Arrays from ExonHit Therapeutics Inc.

Description:... Through its SpliceArray service, ExonHit can design custom microarrays to detect alternative splicing events starting with your gene list. Proprietary algorithms are used to identify splice events and design microarray probes from high quality, ...
Company:ExonHit Therapeutics Inc.

Apoptosis Pathway SpliceArrays from ExonHit Therapeutics Inc.

Description:... Alternative splicing plays an important role in the regulation of signaling pathways involved in apoptosis and cell death. Splice variants have been reported that affect ...
Company:ExonHit Therapeutics Inc.

IMPACT-CN System from New England Biolabs

Description:... IMPACT (Intein Mediated Purification with an Affinity Chitin-binding Tag) utilizes the inducible self-cleavage activity of engineered protein splicing elements (termed inteins) to purify recombinant proteins by a single affinity column (1-4) (Figures 1 and 2). This system distinguishes itself from ...
Company:New England Biolabs
Splicing in Biological Definition

Alternative splicing

... Alternative splicing is the process that occurs in eukaryotes in which the splicing process of a pre-mRNA can lead to different ... not decided yet. This decision is made during the splicing process. The regulation and selection of splice ...

Gene

... are removed on the heels of transcription by splicing . In the primary molecular sense they represent ... be expressed. Because of the complexity of the splicing process, one transcribed RNA may be spliced in ... not one but a variety of proteins ( alternative splicing ) from one pre-mRNA. Prokaryotes produce a ...

Spliceosome

... exons are spliced together. Alternative splicing Alternative splicing (the re-combination of different introns ) is a ... in eukaryotes. For example alternative splicing is what makes our immune systems so diverse ...

Splicing (genetics)

... In genetics , splicing is a modification of genetic information prior ... Mutations in the introns can prevent splicing and thus prevent protein biosynthesis . In many cases, the splicing process can create many unique proteins from a ...

Exon

... gene will end up in the final protein due to the process of alternative splicing . Some mRNA transcripts have no exons whatsoever and thus are sometimes ... creation of a new exon, as result of mutations in intronic sequences. splicing can be experimentally modified so that targeted exons are excluded from ...

Intron

... mRNA are called exons . Introns sometimes allow for alternative splicing of a gene, so that several different proteins that share some sections in ... are actually ribozymes that are capable of catalyzing their own splicing out of the primary RNA transcript. They remove themselves on their own. ...

Restriction enzyme

... 1 Sites of cleavage 2 Fragment complementarity and splicing 3 Restriction enzymes as tools 4 Many Recognition sequences are ... cleave DNA by a different mechanism. Fragment complementarity and splicing Because recognition sequences differ between restriction enzymes, the ...

Enzyme

... in catalytic reactions. Ribozymes An RNA enzyme or " ribozyme " is made of RNA instead of protein. Generally, ribozymes only catalyze RNA splicing , though one notable exception is the RNA portion of the ribosome, which catalyzes the formation of peptide bonds in growing protein chains. ...

Proteome

... proteome is larger than the genome , expecially in eukaryotes , in the sense there are more proteins than genes . This is due to alternative splicing of genes and post-translational modifications like glycosylation or phosphorylation . Moreover the proteome has at least two levels of ...

Proteomics

... proteins in the human proteome (~22,000 genes vs. ~200,000 proteins). The large increase in protein diversity is thought to be due to alternative splicing and post-translational modification of proteins. This discrepancy implies that protein diversity cannot be fully characterized by gene expression ...

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Splicing in Biological Dictionary

Trans-splicing

... Trans - splicing is a special form of RNA processing in ... are joined end to end and ligated. RNA splicing n The process by which base pairs that ... of genetic information in ... Cis- and trans - splicing of mRNAs mediated by ... Trans ...

Splicing factor

... and is found on chromosome 17. The resulting splicing factor is a protein of approximately 33 kDa. ... ... a b "Entrez Gene: SF3B1 splicing factor 3b, subunit 1, 155kDa" ... Molecular architecture of the multiprotein splicing factor SF3b. ... Human protein-coding ...

Spliceosome

... ( ) n. A nucleoprotein particle that aids in the splicing of messenger RNA in eukaryotes ... A ... associated protein 155) (SAP155) (SF3b155) ... splicing factor 3A subunit 3 ( Spliceosome associated ... the current model of pre-mRNA splicing, the five splicing snRNPs ... complex called a spliceosome ...

Splicing

... In molecular biology, splicing is a modification of an RNA after ... and paste move repair holding pen. ... Rope splicing , joining two pieces of rope or cable by weaving ... ... ... usually contains a clear signal for splicing (e.g., the beta globin gene) ... AT-AC Pre-mRNA ...

SnRNP

... (minor spliceosome, U1) · alternative splicing ... Retrieved from "http://en.wikipedia.org ... (minor spliceosome, U1) · alternative splicing ... SnRNP information including symptoms, ... enriched in snRNPs but is devoid of non- snRNP splicing proteins. ... Some of them were shown to be ...

Self-splicing

... In molecular biology, splicing is a modification of an RNA after ... ... Tom Cech (right) discovered self - splicing in rRNA in 1981/82. The discovery was ... Self - splicing and Enzymatic Activity of an Intervening ...

RNA Splicing

... In molecular biology, splicing is a modification of an RNA after ... it can be used to produce ... Alternative splicing is a process by which the exons of the RNA ... are reconnected in multiple ways during RNA splicing . The resulting different mRNAs may be translated ...

Primary transcript

... The Chemistry of the Primary RNA Transcript splicing Reaction and Alternative splicing ... Eukaryotic transcription yields pre-mRNA or ... The Chemistry of the Primary RNA Transcript splicing Reaction and ...

Pre-mRNA

... of introns present in the pre - mRNA and splicing of the remaining exons. This step takes place as ... 8 (Splicing factor ... SKAR Links Pre - mRNA splicing to mTOR/S6K1-Mediated Enhanced Translation ... ... survey of human alternative pre - mRNA splicing with exon junction microarrays. ... snRNAs ...

Gene splicing

... genetic modification/manipulation (GM) and gene splicing are terms that apply to the direct manipulation ... is different ... In molecular biology, splicing is a modification of an RNA after ... before it can be used to produce ... gene - splicing n. The process in which fragments of DNA from ...

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