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Topic: RNA primer

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Primase

DNA replication

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	Primer
		A primer is required because most DNA polymerases (enzymes that catalyze the replication of DNA) cannot begin synthesizing a new DNA strand from scratch, but can only add to an existing strand of nucleotides.
		This RNA is produced by an RNA polymerase, and is later removed and replaced with DNA by a DNA polymerase.
		Primers that are too short would anneal at several positions on a long DNA template, which would result in non-specific copies.
	www.brainyencyclopedia.com /encyclopedia/p/pr/primer.html (709 words)

	Specific Cleavages by RNase H Facilitate Initiation of Plus-Strand RNA Synthesis by Moloney Murine Leukemia Virus -- ...
		RNA from the minus-strand DNA (6, 9, 10, 24).
		RNA nontemplate strand abutted the 3' terminus of the RNA primer.
		RNA strand (1, 13, 15, 20, 21, 25, 43).
	jvi.asm.org /cgi/content/full/77/9/5275 (6855 words)

	Conserved primer sequences for PCR amplification and sequencing from nuclear ribosomal RNA
		All of these primers were identified and tested by our own lab based on consensus between the published large and small subunit RNA sequences from fungi, plants and other eukaryotes; sources of other useful primer sequences from published literature are also indicated.
		The nuclear-encoded ribosomal RNA genes (rDNA) of fungi exist as a multiple-copy gene family comprised of highly similar DNA sequences (typically from 8-12 kb each) arranged in a head-to-toe manner.
		Depending on the orientation and position of the 5S RNA gene, the PCR may be used to sequentially amplify either aportion of the intergenic spacer region (IGS) beyond the large subunit RNA coding region.
	www.biology.duke.edu /fungi/mycolab/primers.htm (1101 words)

	RNA Primer Used in Synthesis of Anticomplementary DNA by Reverse Transcriptase of Avian Myeloblastosis Virus -- Myers ...
		RNA Primer Used in Synthesis of Anticomplementary DNA by Reverse Transcriptase of Avian Myeloblastosis Virus -- Myers et al.
		When either the homologous RNA (avian myeloblastosis virus RNA) or a heterologous RNA (poliovirus RNA) was used as a template, the anticomplementary DNA synthesized in vitro by avian myeloblastosis virus reverse transcriptase (RNA-directed DNA nucleotidyltransferase, EC 2.7.7.7) was primed by fragments of the original RNA template that usually had adenosine at their 3' ends.
		When we used phage T4 RNA ligase (EC 6.5.1.3) to label the 3' end of the RNA template fragments contained in the RNA· cDNA hybrid intermediate, adenosine was found to be the principal nucleoside carrying the label.
	www.pnas.org /cgi/content/abstract/77/3/1316 (217 words)

	Interactions of Escherichia coli sigma 70 within the transcription elongation complex -- Daube and von Hippel 96 (15): ...
		RNA primer, 12 nt in length and identical in sequence to the RNA
		Incubation of holo RNA polymerase with the RNA-primed
		Complexes 2 and 3 (the former in the absence of an RNA primer) are formed on addition of holoenzyme to DNA bubble duplexes (corresponding, respectively, to bands III and I of Fig.
	www.pnas.org /cgi/content/full/96/15/8390 (4971 words)

	Saccharomyces cerevisiae RNase H(35) Functions in RNA Primer Removal during Lagging-Strand DNA Synthesis, Most ...
		Defects in the removal of RNA primers lead to mutations (mainly duplications [60]) in the genome.
		In the absence of RNase H(35), Rad27p as a FEN removes the displaced single-stranded RNA primer adjacent to the newly synthesized DNA.
		Structure-specific cleavage of the RNA primer from Okazaki fragments by calf thymus RNase H. Biol.
	mcb.asm.org /cgi/content/full/19/12/8361 (7750 words)

	An RNA Structure Primer
		RNA is ribonucleic acid, a close cousin of deoxyribonucleic acid or DNA.
		RNA molecules are built from three basic components: ribose, a five-carbon suger, phosphate, and a family of four heterocyclic bases.
		The structure of the RNA backbone is an alternating polymer of ribose and phosphate groups.
	www.rnabase.org /primer (962 words)

	Binding of RNA template to a complex of HIV-1 reverse transcriptase/primer/template -- Canard et al. 94 (21): 11279 -- ...
		The 21-mer primer annealed to a 31-mer DNA or RNA
		RNA template, 60% of the label was on p66.
		the absence of exogenous DNA or RNA, 25% of the cross-linked-labeled
	www.pnas.org /cgi/content/full/94/21/11279 (5105 words)

	Efficient Initiation of HIV-1 Reverse Transcription in Vitro. REQUIREMENT FOR RNA SEQUENCES DOWNSTREAM OF THE PRIMER ...
		(RNA 200 to RNA 223), incremental increases in the length of the
		Melting Studies of Duplexes between the PBS (Template) and Various Oligonucleotide Primers-- Melting studies were undertaken to investigate the thermal stability of the primer-template duplexes (Table I).
		primer in the absence (lanes 1-8) or presence of NC (lanes 9-16), as described under "Experimental Procedures." The DNA products synthesized with the RNA 200 and RNA 244 templates are shown in lanes 1-4 and lanes 9-12, and lanes 5-8 and lanes 13-16, respectively.
	www.jbc.org /cgi/content/full/278/16/14185 (7455 words)

	Control of Initiation of Viral Plus Strand DNA Synthesis by HIV Reverse Transcriptase -- Palaniappan et al. 273 (7): ...
		PPT RNA primer hybridized to the template appears to be different.
		RNA primers of various sequence composition for DNA synthesis.
		RNA primers remained unaltered in the presence of an upstream
	www.jbc.org /cgi/content/full/273/7/3808 (7443 words)

	rna primer from Gene Link
		RNA interference (RNAi) is a specific and sequence dependent targeted gene silencing activity.
		The process of RNA interference varies by individual siRNA while some do not exhibit any interference at all.
		rna primer for demanding applications and consistent results.
	www.genelink.com /siRNA/rnaikitorder.asp?id=12 (198 words)

	Diminished RNA Primer Usage Associated with the L74V and M184V Mutations in the Reverse Transcriptase of Human ...
		Diminished RNA Primer Usage Associated with the L74V and M184V Mutations in the Reverse Transcriptase of Human Immunodeficiency Virus Type 1 Provides a Possible Mechanism for Diminished Viral Replication Capacity -- Diallo et al.
		RNA used as a template was synthesized in vitro, using the plasmid
		A mechanism of AZT resistance: an increase in nucleotide-dependent primer unblocking by mutant RN-1 reverse transcriptase.
	jvi.asm.org /cgi/content/full/77/16/8621 (6419 words)

	NUCLEIC ACIDS
		DNA polymerase III joins the complex (to extend the RNA primer with DNA) along with the rep protein (to unwind the double stranded parental DNA), and the replisome is complete.
		RNA polymerase II makes the precursor of mRNA, which is subsequently modified in the nucleus before transport to the cytoplasm.
		RNA is cleaved, leaving a free 3' -OH at the end of the first exon.
	www-medlib.med.utah.edu /NetBiochem/nucacids.htm (3158 words)

	Figure 17-11 The Role of RNA Primer in DNA Replication (Site not responding. Last check: 2007-10-15)
		DNA synthesis is initiated with a short RNA primer in both prokaryotes and eukaryotes.
		(1) The primer (pink) is synthesized by primase, an RNA polymerase that uses a single strand of DNA as its template.
		(3) The RNA primer is eventually removed by the 5prime to 3prime exonuclease activity of DNA polymerase I, which replaces ribonucleotides with deoxynucleotides as it proceeds.
	www.mun.ca /biology/desmid/brian/BIOL2060/CellBiol17/CB17_11.html (161 words)

	Structural basis for the specificity of the initiation of HIV-1 reverse transcription -- Isel et al. 18 (4): 1038 -- ... (Site not responding. Last check: 2007-10-15)
		In HIV-1, the PBS is not the sole determinant of primer usage.
		Aiyar, A., Ge, Z. and Leis, J. A specific orientation of RNA secondary structure is required for initiation of reverse transcription.
		Primer Unblocking and Rescue of DNA Synthesis by Azidothymidine (AZT)-resistant HIV-1 Reverse Transcriptase.
	embojournal.npgjournals.com /cgi/content/full/18/4/1038 (7478 words)

	Saccharomyces cerevisiae RNase H(35) functions in RNA primer removal during lagging-strand DNA synthesis, most ...
		Saccharomyces cerevisiae RNase H(35) functions in RNA primer removal during lagging-strand DNA synthesis, most efficiently in cooperation with Rad27 nuclease.
		Saccharomyces cerevisiae RNase H(35) functions in RNA primer removal during lagging-strand DNA synthesis, most efficiently in cooperation with Rad27 nuclease.Correct removal of RNA primers of Okazaki fragments during lagging-strand DNA synthesis is a critical process for the maintenance of genome integrity.
		The role of the mammalian nucleases RNase HI and FEN-1 in RNA primer removal has been substantiated by several studies.
	www.pdg.cnb.uam.es /UniPub/iHOP/gp/2050248.html (243 words)

	Saccharomyces cerevisiae RNase H(35) Functions in RNA Primer Removal during Lagging-Strand DNA Synthesis, Most ...
		Saccharomyces cerevisiae RNase H(35) Functions in RNA Primer Removal during Lagging-Strand DNA Synthesis, Most Efficiently in Cooperation with Rad27 Nuclease -- Qiu et al.
		Correct removal of RNA primers of Okazaki fragments during lagging-strand DNA synthesis is a critical process for the maintenance
		Bhagwat, M., Nossal, N. Bacteriophage T4 RNase H Removes Both RNA Primers and Adjacent DNA from the 5' End of Lagging Strand Fragments.
	mcb.asm.org /cgi/content/abstract/19/12/8361 (890 words)

	Species specificity of human RPA in simian virus 40 DNA replication lies in T-antigen-dependent RNA primer synthesis -- ...
		the specificity of h-RPA is due to its role in RNA primer synthesis.
		of DNA replication, measured by RNA primer synthesis, was not
		in the T-ag-dependent synthesis of RNA primer catalyzed by DNA
	nar.oupjournals.org /cgi/content/full/28/23/4742 (3624 words)

	Human Exonuclease 1 Functionally Complements Its Yeast Homologues in DNA Recombination, RNA Primer Removal, and ...
		Human Exonuclease 1 Functionally Complements Its Yeast Homologues in DNA Recombination, RNA Primer Removal, and Mutation Avoidance -- Qiu et al.
		During DNA replication the removal of RNA primers in the
		Purified hExo1 Efficiently Removes RNA Primers from Okazaki Fragment Model Substrates-- Full-length human exonucleases-1 cDNA was cloned into the pET28a vector and expressed in E.
	www.jbc.org /cgi/content/full/274/25/17893 (5592 words)

	DNA'DAKİ YARATILIŞ MUCİZESİ - Harun Yahya
		Sonra bu RNA molekülü çevre şartlarının etkisiyle birdenbire proteinler üretmeye başlamıştı.
		Araştırmacılar RNA dünyası kavramını detaylı biçimde inceledikçe giderek daha fazla sorun ortaya çıkıyor.
		RNA ve onun parçalarının laboratuvarda en iyi şartlarda sentezlenmesi bile son derece zor iken, bunun prebiyotik (yaşam öncesi) ortamda gerçekleşmesi nasıl olmuştur?
	www.harunyahya.org /bilim/hy_dna/2.html (8546 words)

	DePamphilis Lab - Complete Publication List
		(1985) DNA primase-DNA Polymerase-a from Simian cells: Modulation of RNA Primer Synthesis by Ribonucleoside Triphosphates, J. Biol.
		(1977) RNA Primers in Simian Virus 40 DNA Replication: Identification of Transient RNA-DNA Covalent Linkages in Replicating DNA, Biochemistry 16: 4990-4998.
		(1977) RNA Primers in Simian Virus 40 DNA Replication: Distribution of 5'-Terminal Oligoribonucleotides in Nascent DNA, J. Mol.
	depamphilislab.nichd.nih.gov /totalpubs.html (3814 words)

	Re: Enrichment Activity #3 RNA Primer (Site not responding. Last check: 2007-10-15)
		DNA Polymerase needs a 3'OH already bound to the template strand in order to get it started on a copy.
		RNA Polymerase does not need a 3'OH to produce RNA or RNA primers de novo.
		Therefore in vivo we have RNA primers supplying DNA Polymerase with a 3'OH for DNA replication.
	snhs-plin.barry.edu /_disc29/0000003e.htm (51 words)

	Template Recognition Sequence for RNA Primer Synthesis by Gene 4 Protein of Bacteriophage T7 -- Tabor and Richardson 78 ...
		Template Recognition Sequence for RNA Primer Synthesis by Gene 4 Protein of Bacteriophage T7 -- Tabor and Richardson 78 (1): 205 -- Proceedings of the National Academy of Sciences
		The gene 4 protein of bacteriophage T7 recognizes specific sequences on single-stranded DNA and then catalyzes the synthesis of tetraribonucleotide primers complementary to the template.
		Comparison of the utilization of primer sites suggests that the gene 4 protein binds randomly to single-stranded DNA and then translocates along the DNA in a unidirectional 5'-to-3' direction with regard to the DNA strand in search of recognition sequences.
	www.pnas.org /cgi/content/abstract/78/1/205 (885 words)

	RNA products: siRNA, mRNA and GMP-RNA from CureVac the RNA people
		RNA products: siRNA, mRNA and GMP-RNA from CureVac the RNA people
		We are dedicated to offering reliable and innovative RNA related products and services to the Life Science Community.
		GMP production available for oligonucleotides and messenger RNA (2 to 15.000 bases).
	www.rnapeople.com (104 words)

	www.dnatestingsources.com Site Map (Site not responding. Last check: 2007-10-15)
		Dog Colour Genetics Primer and FREE Canine Genetics Software Dog color Genetics primer together with free software for computing...
		Mapping and Sequencing the Human Genome: Primer on Molecular Genetics...
		Human Genome Project Primers Downloadable and interactive educational primers on Molecular Genetics, medicine and the new Genetics, ethical, legal, and social issues associated with Genetics, and more.
	www.dnatestingsources.com /special/map/index.php?page=2 (3651 words)

	[No title] (Site not responding. Last check: 2007-10-15)
		Griep MA, 2002, "Primase" and "Primer RNA" entries in The Encyclopedia of Genetics by Sydney Brenner and Jeffrey H. Miller, Editors-in-Chief, Academic Press
		Griep MA, 1995, Fluorescence Recovery Assay: A Continuous Assay for Processive DNA Polymerases Applied Specifically to DNA Polymerase III Holoenzyme, Analytical Biochemistry 232, 180-189.
		Swart JR, and Griep MA, 1995, Primer Synthesis Kinetics by Escherichia coli Primase on Single-Stranded DNA Templates, Biochemistry 34, 16097-16106.
	chem-mgriep2.unl.edu /GriepPages/publications.html (449 words)

	Frameset for Human Genetics 99
		Re: Bonus Question #2 : RNA Primer Shane Haines 9/7/99
		Re: Bonus Question #2 : RNA Primer Maria Lopez 9/8/99
		Why RNA primers are used instead of DNA primers?
	snhs-plin.barry.edu /disc15_frm.htm (3219 words)

	Frameset for Human Genetics 2000
		Re: Enrichment Activity #2: RNA Primer Jermaine Campbell (adrianc@osteopathic.com) 8/31/2000
		Re: Enrichment Activity #2: RNA Primer liesl jeffers 9/7/2000
		Re: Enrichment Activity #2: RNA Primer Kahesha Franklin 9/11/2000
	snhs-plin.barry.edu /disc21_frm.htm (3940 words)

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