ribonuclease

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  • ribonuclease n. Any of various enzymes that break down RNA. Research on ribonuclease has played a prime role in advancing the understanding of protein structure and function; also, it was the first protein to be totally synthesized from its component amino acids. — “ribonuclease: Definition from ”,
  • Ribonuclease (commonly abbreviated RNase) is a type of nuclease that catalyzes the degradation of RNA into smaller components. RNase A (e.g., bovine pancreatic ribonuclease A: PDB 2AAS) is one of the hardiest enzymes in common. — “Ribonuclease - Wikipedia, the free encyclopedia”,
  • The SCOP classification for the Ribonuclease H-like superfamily including the families contained in it. Additional information provided includes InterPro annotation (if available), Functional annotation, and SUPERFAMILY links to genome. — “Ribonuclease H-like superfamily”,
  • 1DY5: The Ultrahigh Resolution Crystal Structure of Ribonuclease A Containing an Isoaspartyl Residue: Hydration and Sterochemical ***ysis. — “RCSB PDB : Structure Summary for 1DY5 - DEAMIDATED DERIVATIVE”,
  • Definition of ribonuclease from Webster's New World College Dictionary. Meaning of ribonuclease. Pronunciation of ribonuclease. Definition of the word ribonuclease. Origin of the word ribonuclease. — “ribonuclease - Definition of ribonuclease at ”,
  • Information on EC 3.1.26.10 - ribonuclease IX Glycosylation of serum ribonuclease 1 indicates a major endothelial origin and reveals an increase in core. — “EC 3.1.26.10 - ribonuclease IX”, brenda-
  • Polyclonal Rabbit Ribonuclease A Antibody : This antibody can be used in ELISA. Species: Bv. Ribonuclease A is an endonuclease that catalyzes the cleavage of RNA on the 3' side of pryimidine nucleatides. — “Ribonuclease A Antibody (NB600-648) Datasheet | Novus Biologicals”,
  • Acronym Finder: RNase stands for Ribonuclease 6 M over the next five years for a project "HIV RNase H natural product inhibitors" to develop novel HIV therapeutics directed at the under-explored HIV target ribonuclease H (RNase H). Millenia Hope receives a grant from NIH to develop HIV therapeutics. — “RNase - Ribonuclease”,
  • Ribonuclease activity and RNA binding of recombinant human Dicer Here, we report cloning and expression of the 218 kDa human Dicer, and characterization of its ribonuclease activity and dsRNA-binding properties. — “Ribonuclease activity and RNA binding of recombinant human Dicer”, m.nih.gov
  • Ribonuclease Manufacturers & Ribonuclease Suppliers Directory - Find a Ribonuclease Manufacturer and Supplier. Choose quality Ribonuclease Manufacturers, Suppliers, Exporters at . — “Ribonuclease-Ribonuclease Manufacturers, Suppliers and”,
  • Reverse transcriptase (RT) is a modular enzyme carrying polymerase and ribonuclease H (RNase H) activities in separable domains. This process requires ribonuclease H as well as RNA- and DNA-directed DNA polymerase activities. — “IPR002156 Ribonuclease H”,
  • Pancreatic ribonuclease catalyzes cleavage of the. phosphodiester bond between the 5' Biology Grade Ribonuclease A (Code: RPDF) is essentially free. — “Product Highlight 1”, worthington-
  • ribonuclease (plural ribonucleases) (biochemistry) Any of a group of enzymes which Retrieved from "http:///wiki/ribonuclease". — “ribonuclease - Wiktionary”,
  • Natural and Recombinant RNasin® Ribonuclease Inhibitors have broad-spectrum RNase inhibitory properties, including the inhibition of eukaryotic RNases of the neutral type. The 50kDa protein exerts its inhibitory effect by noncovalently binding to RNases in a 1:1 ratio. — “RNasin Ribonuclease Inhibitor”,
  • Synonyms: calf thymus ribonuclease H activity; endoribonuclease0 H activity; ribonuclease H1 activity; ribonuclease H2 activity; ribonuclease H3 activity; RNase H activity; RNase H1 activity; RNase H2 activity; RNase H3 activity; endoribonuclease. — “GO term: ribonuclease H activity”,
  • Ribonuclease A (RNase A) is an endonuclease that cleaves single-stranded RNA. Ribonuclease-S, which is RNase A that has been treated with subtilisin, was the third protein to have its structure solved, in 1967. — “Ribonuclease A - Citizendia”,
  • Mouse monoclonal to Ribonuclease Inhibitor. Ribonuclease Inhibitor is an inhibitor of pancreatic RNase and angiogenin. It may also function in the modulation of cellular activities. Ribonuclease. — “Ribonuclease Inhibitor antibody (ab77448) | Abcam”,
  • Definition and other additional information on Ribonuclease from Biology- dictionary. — “Ribonuclease - definition from Biology-”, biology-
  • Top questions and answers about Ribonuclease. Find 13 questions and answers about Ribonuclease at Read more. — “Ribonuclease - ”,

Videos
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  • Ribonuclease
  • Bite-Sized Biochemistry #46 - Transcription II (RNA Synthesis) (02/23/11) Lecture by Kevin Ahern of Oregon State University discussing Biochemistry Basics in BB 451. See the full course at oregonstate.edu This course can be taken for credit (wherever you live) via OSU's ecampus. For details, see ecampus.oregonstate.edu Download Metabolic Melodies at Related courses include BB 350 - oregonstate.edu BB 450 - oregonstate.edu BB 100 - oregonstate.edu Transcription II 1. The factor independent method of transcription termination relies on formation of a duplex sequence of GC base pairs immediately ahead of a stretch of U's. The duplex destabilizes the RNA-DNA duplex and this is favored by the relatively weak hydrogen bonds of the UA interactions. 2. In prokaryotes, tRNAs are the most altered (processed) RNAs. Modifications start with their being cleaved from a larger RNA containing both tRNAs and rRNAs. Ribonuclease P is a ribozyme (catalytic RNA) that cleaves the 5' end of tRNAs from the larger RNA. Ribonuclease III catalyzes excision of rRNAs from the larger molecule. 3. Eukaryotes and prokaryotes differ significantly in the relationship between transcription and translation. Prokaryotes have no nucleus. In them, translation starts oftentimes WHILE a message is being transcribed. There are no significant modifications to mRNAs in prokaryotes. 4. In eukaryotes, transcription and translation are spacially separated. Transcription occurs in the nucleus, whereas translation occurs in the cytoplasm. In addition ...
  • HIV Replication 3D Medical Animation It is a very excellent animation which explains the hiv replication very clearly. For free download of this video please visit my webpage 3 And other 3D animation videos visit 3 Regards, fus The Lyrics of this video is here Targeting HIV replication The replication of HIV 1 is a multi-stage process. Each step is crucial to successful replication and is therefore a potential target of antiretroviral drugs. Step one is the infection of a suitable host-cell, such as a CD4-positive T-lymphocyte. Entry of HIV into the cell requires the presence of certain receptors on the cell surface, CD4 -- receptors and co-receptors such as CCR5 or CXCR4. These receptors interact with protein-complexes, which are embedded in the viral envelope. These complexes are composed of two glycoproteins: an extracellular gp 120 and a transmembrane gp 41 When HIV approaches the target cell gp120 binds to the CD4-receptors. This process is termed attachment. It promotes further binding to a co-receptor. Co-receptor binding results in a conformational change in gp120. This allows gp41 to unfold and insert its hydrophobic terminus into the cell membrane. Gp 41 then folds back on itself. This draws the virus towards the cell and facilitates the fusion of their membranes. The viral nucleocapsid enters the host cell and breaks open releasing two viral RNA-strands and 3 essential replication enzymes: Integrase, Protease and Reverse Transcriptase. Reverse Transcriptase ...
  • BB 450/550 Classroom Lecture #2 for June 22 - Protein Structure and Purification Lecture by Kevin Ahern of Oregon State University discussing Biochemistry Basics in BB 450. See the full course at oregonstate.edu This course can be taken for credit (wherever you live) via OSU's ecampus. For details, see ecampus.oregonstate.edu Download Metabolic Melodies at Related courses include BB 350 - oregonstate.edu BB 451 - oregonstate.edu BB 100 - oregonstate.edu
  • RNAse A: The Ribonuclease A enzymatic reaction mechanism short animation on RNAse mechanism. copyright Farhan Jiwani. Please contact before use
  • Hollywood, Smith & Grant, How to Say Goodbye Concert at the Greek w/ Sam Botta Let go of the noose of being what others need you to be, which makes them feel better about themselves, yet if they were to be open and free to encourage you to nurture your own wings and soar, it would be that other person that would be the closest and most personal, most celebrated audience of you, the butterfly that has flown from the cocoon, that other person would recognize the joy of such seeming sporadic flight but it would be the colors, glistening in the sun over the warm, shining, happy green grass, rising to the blue sky, ignoring any thought of clouds, as, for the butterfly, timing is important, and time is everything. Sure the life of a butterfly is quite short, but to that butterfly, a day is like a lifetime, because it is a full lifetime, and so in the most precious gift that you and I have: TIME ~ Sam Botta Words: "Tell me when the time we had slipped away Tomorrow turned to yesterday And I don't know how Tell me what can stop this river of tears It's been building up for years For this moment now Here I stand Arms open wide I've held ya close Kept ya safe Till you could fly Tell me where the road ahead is gonna bend And how to harness up the wind And how to say goodbye Tell me why Why does following your dreams Take you far away from me And I knew that it would Tell me how to fill the space you left behind And how to laugh instead of cry And how to say goodbye Here I stand Arms open wide I've held ya close Kept ya safe Till you could fly Tell me where the ...
  • The Ribonuclease Protein--Simple or Not? The ribonuclease protein is the simplest protein found in the chemical makeup of life. But is it really simple at all? This is just one example of how incredibly complex creation is, and how unlikely it is that this universe was formed through chance. Information and picture from: "Exploring Creation with Biology--2nd edition" by Dr. Jay L. Wile
  • PWNED in 90 seconds Link to video that I am responding to: Articles: Zhang, J., Y.-P. Zhang and HF Rosenberg, 2002. Adaptive evolution of a duplicated pancreatic ribonuclease gene in a leaf-eating monkey. Nature Genetics 30: 411-415. Brown, CJ, KM Todd and RF Rosenzweig, 1998. Multiple duplications of yeast hexose transport genes in response to selection in a glucose-limited environment. Molecular Biology and Evolution 15(8): 931-942. Woelk et al.2007.Evolution of the interferon alpha gene family in eutherian mammals Gene . 397(1-2) PP 38-50. Harris (2010). Nonadaptive Processes in Primate and Human Evolution. YEARBOOK OF PHYSICAL ANTHROPOLOGY, VOL 53. PP13-45 cat.inist.fr Talk origins:
  • Enzymatic Hydrolysis of Phosphodiesters Hydrolysis of phosphodiesters in nucleic acids leads to the breakdown of DNA and RNA, a mechanism of biological defense. Learn more in this webcast!
  • Ribonuclease P: A Small Step in the RNA World Professor Sidney Altman gives a detailed description of RNase P and its evolution in prokaryotes and eukaryotes and a summary of data regarding the utility of this enzyme and associated technology that could be used as a clinical therapy. Series: "UC Berkeley Graduate Council Lectures" [1/2011] [Science] [Show ID: 20041]
  • A Glimpse of the RNA World: Ribozyme RNase P Bound with tRNA Ribonuclease P (RNase P) is a ribonucleoprotein complex responsible for processing many different RNA molecules in the cell. The RNA component is responsible for hydrolytic cleavage of substrate RNA and thus could be considered as a remnant of an ancient RNA-based world before the emergence of DNA and proteins. The structure of RNase P involved in the maturation of the tRNA substrate exhibits the major recognition occurs by shape complementarity, intermolecular contacts and base-pairing interactions (Ref: Reiter et al. Nature vol 468, 784: 3OK7.pdb).
  • Promise of a novel HPV treatment with the HIV drug Lopinavir "Lopinavir up-regulates expression of the antiviral protein ribonuclease L in human papillomavirus-positive cervical carcinoma cells" Batman et al. Antiviral Therapy. 2011; 16 Corresponding author: [email protected]
  • RNase A It's awesome
  • siRNA Pathway.flv Small interfering RNAs (siRNAs) are 2123nt dsRNA (double-stranded RNA) molecules that facilitate potent and sequence-specific gene suppression via the mechanism of RNAi (RNA interference). siRNA pathway animation gives an idea on the mechanism of gene supression by siRNA. When introduced into cultured mammalian cells, siRNAs facilitate the degradation of mRNA sequences to which they are homologous; thereby silencing the encoding gene. The basic mechanism behind RNAi is the breaking of a dsRNA matching a specific gene sequence into short pieces of siRNA. These siRNAs post-transcriptionally silences a gene through mRNA degradation. mRNA silencing involves the chopping of long dsRNA into smaller pieces, corresponding to both sense and antisense strands of the target gene by the Rnase-III (Ribonuclease-III) family member, Dicer. Dicer chops dsRNA into two classes of smaller RNAs—miRNAs (microRNAs) and siRNAs. Dicer delivers these siRNAs to a group of proteins called the RISC (RNA-Inducing Silencing Complex), which uses the antisense strand of the siRNA to bind to and degrade the corresponding mRNA, resulting in gene silencing. siRNAs are associated with silencing triggered by transgenes, microinjected RNA, viruses, and transposons, and hence can be considered intermediaries in host defense pathways against foreign nucleic acids.
  • Transcription II This course is part of a series taught by Kevin Ahern at Oregon State University on General Biochemistry. For more information about online courses go to ecampus.oregonstate.edu 1. The factor involved in factor dependent transcription termination in E. coli is called rho. It binds to the 5' end of an RNA being made and (using ATP energy) "climbs" the RNA until it reaches the RNA polymerase. There it destabilizes the RNA/DNA duplex, favoring the release of the RNA polymerase from the DNA and the RNA from the DNA, as well. 2. In prokaryotes, tRNAs are the most altered (processed) RNAs. Modifications start with their being cleaved from a larger RNA containing both tRNAs and rRNAs. Ribonuclease P is a ribozyme (catalytic RNA) that cleaves the 5' end of tRNAs from the larger RNA. Ribonuclease III catalyzes excision of rRNAs from the larger molecule. 3. Eukaryotes and prokaryotes differ significantly in the relationship between transcription and translation. Prokaryotes have no nucleus. In them, translation starts oftentimes WHILE a message is being transcribed. There are no significant modifications to mRNAs in prokaryotes. 4. In eukaryotes, transcription and translation are spacially separated. Transcription occurs in the nucleus, whereas translation occurs in the cytoplasm. In addition, eukaryotic mRNAs are modified at the 5' end (capping), the 3' end (polyadenylation) and even in the middle (editing and splicing). 5. Eukaryotes have 3 specialized RNA polymerases. They ...
  • Bite-Sized Biochemistry #6: Protein Structure & Characterization Lecture by Kevin Ahern of Oregon State University discussing Protein Structure II in BB 450. This course can be taken for credit (wherever you live) via OSU's ecampus. For details, see ecampus.oregonstate.edu See the full course at oregonstate.edu Download Metabolic Melodies at Related courses include BB 350 - oregonstate.edu BB 451 - oregonstate.edu BB 100 - oregonstate.edu Highlights Protein Structure IV 1. Ribonuclease is an enzyme that degrades RNA. It is unsually stable. For example, it can be heated up to break its hydrogen bonds, but when cooled down, the enzyme still is active, meaning it has assumed its original shape. 2. Denaturation is a word that means the tertiary and/or quaternary structure of a protein is disrupted. RNase has disulfide bonds that help it to remain resistant to denaturation. 3. Some chemicals, such as mercaptoethanol, can reduce the disulfides (between cysteine residues) in proteins to sulfhydryls. In the process of transferring electrons to the cysteines, the sulfhydryls of mercaptoethanol become converted to disulfides. Treatment of RNase with mercaptoethanol reduces RNAse's disulfides to sulfhydryls. Subsequent treatment of RNase with urea disrupts hydrogen bonds and allows the protein to be denatured. 4. Interestingly, removal of the mercaptoethanol and urea from the solution allows RNase to refold slightly, and regaining activity. Clearly, the primary sequence of this protein is sufficient for it to be able to ...
  • Hugging Tightly: Human RNase Inhibitor RNase secreted from pancreas is necessary to digest RNA in diet to utilize as nutrients, but if they happen inside cells, it could disrupt crucial cellular functions. Human ribonuclease inhibitor is a horseshoe-shaped protein and inhibits human pancreatic ribonuclease by tightly hugging and completely blocking the active site of the enzyme. This complex is one of the tightest intermolecular interactions known (1Z7X.pdb ref. Johnson et al. JMB v368 p434).
  • Annotated Bibliography Presentation - Part 1 Opportunistic Infections Complications related to HIV/AIDS
  • hiv virus credit to the owner explaination: HIV enters macrophages and CD4+ T cells by the adsorption of glycoproteins on its surface to receptors on the target cell followed by fusion of the viral envelope with the cell membrane and the release of the HIV capsid into the cell. Entry to the cell begins through interaction of the trimeric envelope complex (gp160 spike) and both CD4 and a chemokine receptor on the cell surface. gp120 is bound with the CD4 protein, the envelope complex undergoes a structural change, exposing the chemokine binding domains of gp120 and allowing them to interact with the target chemokine receptor. After HIV has bound to the target cell, the HIV RNA and various enzymes, including reverse transcriptase, integrase, ribonuclease, and protease, are injected into the cell.During the microtubule-based transport to the nucleus, the viral single-strand RNA genome is transcribed into double-strand DNA, which is then integrated into a host chromosome. Shortly after the viral capsid enters the cell, an enzyme called reverse transcriptase liberates the single-stranded (+)RNA genome from the attached viral proteins and copies it into a complementary DNA (cDNA) molecule.Together, the cDNA and its complement form a double-stranded viral DNA that is then transported into the cell nucleus. The integration of the viral DNA into the host cell's genome is carried out by another viral enzyme called integrase.During viral replication, the integrated DNA provirus is transcribed ...
  • Protein Structure III This course is part of a series taught by Kevin Ahern at Oregon State University on General Biochemistry. For more information about online courses go to ecampus.oregonstate.edu 1. Another type of fibrous protein is collagen, the most abundant protein in your body. It contains three intertwined helices comprised of abundant repeating units of glycine, proline, and hydroxylproline 2. Hydroxylation of proline is a post-translational modification (occurs after the protein is made) and the hydroxyls are placed there in a reaction that uses vitamin C. 3. The hydroxyls of hydroxyproline can react with other, forming covalent cross-links that make the collagen fibers more sturdy. 4. Tertiary structure relates to interactions between amino acids in a protein that are not close in primary sequence. These interactions are made possible by folding to the protein chain to bring the distant amino acids closer together. 5. Tertiary structure is stabilized by disulfide bonds, ionic interactions, hydrogen bonds, hydrophilic, and hydrophobic interactions. Disulfide bonds are the strongest forces holding tertiary structure together, as they are covalent bonds. 6. Most proteins that are in cells are globular in nature. 7. Myoglobin is protein that acts as an oxygen 'battery', storing oxygen in muscles for when it is needed. Myoglobin contains a heme group that contains iron. Heme is a 'prosthetic group', which refers to a non-amino acid containing group that binds to a protein and augments ...
  • BB 450/550 Classroom Lecture #1 for June 22 - Protein Structure and Purification Lecture by Kevin Ahern of Oregon State University discussing Biochemistry Basics in BB 450. See the full course at oregonstate.edu This course can be taken for credit (wherever you live) via OSU's ecampus. For details, see ecampus.oregonstate.edu Download Metabolic Melodies at Related courses include BB 350 - oregonstate.edu BB 451 - oregonstate.edu BB 100 - oregonstate.edu

Blogs & Forum
blogs and forums about ribonuclease

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  • “Import export forum, International trade forum : Import export offers & discussions : To Sell Offers Enzymes Series: lactase; hyaluronidase; mannitol; rifampicin; ribonuclease; cytochrome C; elastase; chymotrypsinogen; trypsin etc”
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  • “mistyone [Blog] Take Care To Ensure Adequate Protein To Your Body: Amongst all the of conformational changes in proteins A study of fluorescein-labelled ribonuclease A”
    — Proteins - The Gaea News,

  • “The interaction between RNase A and ribonuclease inhibitor occurs with femtomolar affinity (which is orders an RNase A that can evade ribonuclease inhibitor, this protein may kill tumor cells”
    — Science/AAAS | Science Signaling: Community: Forums: Open,

  • “The company's products utilize its proprietary EVade Ribonuclease Technology for the delivery of anti-cancer agents. of Quintessence Biosciences, discusses the company's EVade Ribonuclease Technology at this year's OneMedForum”
    — " Quintessence Biosciences' Novel Approach to Cancer Therapy,

  • “ using X-ray crystallography to examine ribonuclease and, as Horace Freeland Judson writes Blog. Predictive Biosciences Takes Epigenomics Option to Sell GSTP1-Based Prostate Cancer”
    — Not To Worry... | Careers | GenomeWeb,

  • “Forum for German-English translation questions. Anfinsen found that scrambled ribonuclease spontaneously converted into fully active, native ribonuclease”
    — forum.dict.cc: English-German Translation Forum, forum.dict.cc

  • “Molecular mass spectrometry (MMS) is rapidly maturing as a powerful ***ytical tool and playing a central role in proteomics research.1 However, currently molec ,地球化学论坛 Geochemical Forum”
    — Strategy for absolute quantification of proteins: CH3Hg,

  • “The large-scale production of these proteins is, however, a difficult task because the and the use of animal derived enzymes such as lysozyme, proteinase K and ribonuclease”
    — Lehigh University - Department of Chemical Engineering, che.lehigh.edu

  • “Post Reply. Author. 4 Posts. jem23. Forum Junior. Topics: 15. Posts: 35. 09/20/05 - 03:02 PM #1 b.ribonuclease. c.ribosome. d.spliceosome. e.transcription factors. mildus. Forum Guru. Topics:”
    — q, prep4

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