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Misregulation of pre-mRNA splicing that causes human diseases
Misregulation of pre-mRNA splicing that causes human diseases

... About one third of all human genes are subject to alternative splicing. The molecular mechanisms that regulate alternative splice site usage are beginning to emerge and show that transcription and pre-mRNA processing are integrated processes that can be modified by cellular signals. Several diseases ...
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... Dogma of Biology? ...
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ppt

... Properties of overlapping genes are conserved across microbial genomes. Genome Res. 2004 Nov;14(11):2268-72. Within microbial genomes, one third of annotated genes contain some degree of overlap, and one third of these are either Convergent or Divergent. Krakauer, D.C. Stability and evolution of ove ...
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... This has been shown in a study by Sorgo and Yaffe, J Cell Bio. 126: 1361-1373, 1994. They showed the result of the removal of an outer membrane protein from mitochondria called MDM10. This figure shows the results. The mitochondria are able to take in components and produce membranes and matrix enzy ...
제3회 한국분자세포생물학회 이동성 유전인자분과 학술대회
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... Department of Nanobiomedical Science & WCU Research Center, Dankook University, Chunan 330-714, Republic of Korea ...
Taxonomy of Bacteria and Archaea
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... The human DICER1 gene encodes an important ribonuclease, involved in miRNA and siRNA processing. Several mRNAs representing this gene have been mapped to the human genome (March 2006 assembly). We will look closer at one of them: AK002007. What are the first five nucleotides from the first inferred ...
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... products of interest. Although we have used chloramphenicol, any selectable marker may be chosen. Furthermore, use of the readily available KanR KEIO collection (Baba et al., 2006) allows for positive selection throughout the process. Gene replacement permits the removal of the KanR marker sequence ...
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... transfect up to 50% of recombinant molecules into host (cf < 0.01% for transformation) 2) viruses are very good at forcing hosts to replicate them may not need a selectable marker ...
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The role of DNA damage in laminopathy progeroid syndromes

... dermopathy) [1]. All of these diseases have been linked to abnormal post-translational processing of prelamin A, which promotes nuclear shape abnormalities and cellular toxicity [2–5]. The initial post-translational processing of lamin A is now well-characterized. Lamin A is first translated as a pr ...
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Primary transcript



A primary transcript is the single-stranded ribonucleic acid (RNA) product synthesized by transcription of DNA, and processed to yield various mature RNA products such as mRNAs, tRNAs, and rRNAs. The primary transcripts designated to be mRNAs are modified in preparation for translation. For example, a precursor messenger RNA (pre-mRNA) is a type of primary transcript that becomes a messenger RNA (mRNA) after processing.There are several steps contributing to the production of primary transcripts. All these steps involve a series of interactions to initiate and complete the transcription of DNA in the nucleus of eukaryotes. Certain factors play key roles in the activation and inhibition of transcription, where they regulate primary transcript production. Transcription produces primary transcripts that are further modified by several processes. These processes include the 5' cap, 3'-polyadenylation, and alternative splicing. In particular, alternative splicing directly contributes to the diversity of mRNA found in cells. The modifications of primary transcripts have been further studied in research seeking greater knowledge of the role and significance of these transcripts. Experimental studies based on molecular changes to primary transcripts the processes before and after transcription have led to greater understanding of diseases involving primary transcripts.
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