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Proton pump inhibitors Proton pump inhibitors Tags: Proton pump inhibitors |
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cavity cavity Tags: cavity |
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Breast cancer Breast cancer Tags: Breast cancer |
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GeneChip Genechip Tags: microarray genechip |
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dnaarray dnaarray Tags: dnaarray |
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RNa to Protein 3 RNa to Protein Tags: RNa to Protein |
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Rna to Protein 2 Rna to Protein Tags: Rna to Protein |
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RNa to Protein 1 RNa to Protein Tags: RNa to Protein |
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Energy ATPase Tags: atpase |
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Microarray printing Microarray printing Tags: Microarray printing |
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Anti-Bacterial Defences Anti-Bacterial Defences Tags: Anti-Bacterial Defences immunology antibody |
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t-Rna t-rna Tags: trna gene protein synthesis |
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Protein Synthseis Protein Synthesis Tags: protein synthesis |
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Proteosomes Proteasomes are large protein complexes inside all eukaryotes and archaea, as well as in some bacteria. In eukaryotes, they are located in the nucleus and the cytoplasm.The main function of the proteasome is to degrade unneeded or damaged proteins by proteolysis, a chemical reaction that breaks peptide bonds. Enzymes that carry out such reactions are called proteases. Proteasomes are a major mechanism by which cells regulate the concentration of particular proteins and degrade misfolded proteins. The degradation process yields peptides of about seven to eight amino acids long, which can then be further degraded into amino acids and used in synthesizing new proteins.Proteins are tagged for degradation by a small protein called ubiquitin. The tagging reaction is catalyzed by enzymes called ubiquitin ligases. Once a protein is tagged with a single ubiquitin molecule, this is a signal to other ligases to attach additional ubiquitin molecules. The result is a polyubiquitin chain that is bound by the proteasome, allowing it to degrade the tagged protein Tags: Cell protein complex eukaryotes amino acids cell nucleus |
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Histones Histones are the chief protein components of chromatin. They act as spools around which DNA winds and they play a role in gene regulation Tags: Histones cell dna |
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Molecular Biology video 5 Tags: Biotechnology bioinformatics lecture |
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Molecualar Biology 4 video 4 Tags: biotechnology molecular bilogy lecture bioinformatics |
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Molecular biology Lecture 3 video Tags: molecular Biology biotechnology lecture bioinformatics |
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Molecular Biology 2 second video Tags: molecular biology biotechnology lecture bioinformatics |