Untitled
... ensuring translational accuracy depends on the tRNA synthetase which is responsible for linking the correct amino acid to each tRNA. Most synthetases select the correct amino acid by a two-step mechanism that involves two discrete sites on the enzyme. First, the correct amino acid has the highest bi ...
... ensuring translational accuracy depends on the tRNA synthetase which is responsible for linking the correct amino acid to each tRNA. Most synthetases select the correct amino acid by a two-step mechanism that involves two discrete sites on the enzyme. First, the correct amino acid has the highest bi ...
Chapter 4
... Hydrolysis is the opposite of dehydration synthesis. In hydrolysis, a large molecule is split apart at a certain point and a hydrogen atom is attached to one of the new molecules, while a hydroxyl group is attached to the other. Both of these processes can occur over and over until the original mole ...
... Hydrolysis is the opposite of dehydration synthesis. In hydrolysis, a large molecule is split apart at a certain point and a hydrogen atom is attached to one of the new molecules, while a hydroxyl group is attached to the other. Both of these processes can occur over and over until the original mole ...
Chapter 2 Macromocules
... 3. Mechanical protection. Example surrounding delicate organs such as the heart. 4. Waterproofing. Like the wax in your ears. ...
... 3. Mechanical protection. Example surrounding delicate organs such as the heart. 4. Waterproofing. Like the wax in your ears. ...
Production of functional protein hydrolysates from Egyptian
... quality of protein extracts from many sources. In this study, protein extracts from ungerminated and/or germinated local Egyptian soybean and lupin flours were hydrolyzed using the enzyme papain. The hydrolysis processes were carried out for 2 h and aliquots were withdrawn at different time interval ...
... quality of protein extracts from many sources. In this study, protein extracts from ungerminated and/or germinated local Egyptian soybean and lupin flours were hydrolyzed using the enzyme papain. The hydrolysis processes were carried out for 2 h and aliquots were withdrawn at different time interval ...
Lecture 24 – PDF
... a) tRNA i Met -- An initiator tRNA (like prokaryotes) but that does not carry a formylated methionine. b) There also is no Shine-Dalgarno sequence. The initiation complex forms at the 5’end of the mRNA and begins the search for an AUG start codon. c) A cap-binding protein (CPB) binds the 7-MG at the ...
... a) tRNA i Met -- An initiator tRNA (like prokaryotes) but that does not carry a formylated methionine. b) There also is no Shine-Dalgarno sequence. The initiation complex forms at the 5’end of the mRNA and begins the search for an AUG start codon. c) A cap-binding protein (CPB) binds the 7-MG at the ...
蛋白质结构基础(Introduction of Protein Structure)
... The majority of a-helices in globular proteins are curved or distorted somewhat compared with the standard Pauling-Corey model. Why? 1. The packing of buried helices against other secondary structure elements in the core of the protein 2. Proline residues induce distortions of around 20 degrees in t ...
... The majority of a-helices in globular proteins are curved or distorted somewhat compared with the standard Pauling-Corey model. Why? 1. The packing of buried helices against other secondary structure elements in the core of the protein 2. Proline residues induce distortions of around 20 degrees in t ...
Patterns of nucleotide and amino acid substitution
... are those at which any of the four nucleotides can be present in a codon for a single amino acid. In some cases there is redundancy in the first codon position, e.g, both AGA and CGA are codons for arginine. Thus, many nucleotide substitutions at third positions do not lead to amino acid substitutio ...
... are those at which any of the four nucleotides can be present in a codon for a single amino acid. In some cases there is redundancy in the first codon position, e.g, both AGA and CGA are codons for arginine. Thus, many nucleotide substitutions at third positions do not lead to amino acid substitutio ...
Isolation of a cDNA for a nucleoside diphosphate kinase capable of
... increased about 10-fold. This increase was not affected by KN62 indicating that the autophosphorylation activity of SRK-KD was not involved. It was concluded that SRK-KD was phosphorylated by Bc-NDPK. It was confirmed that the GST moiety of the fusion protein was not phosphorylated by BcNDPK (data n ...
... increased about 10-fold. This increase was not affected by KN62 indicating that the autophosphorylation activity of SRK-KD was not involved. It was concluded that SRK-KD was phosphorylated by Bc-NDPK. It was confirmed that the GST moiety of the fusion protein was not phosphorylated by BcNDPK (data n ...
BMC Bioinformatics
... where j = {H, E, C}, N ij is the frequency of amino acid i in secondary structure element j, and L is the length of the sequence. We used N-terminal sequences in stead of full-length sequences. As mentioned before, the maximal secretion or translocation may require the first 100 amino acids [13-15]. ...
... where j = {H, E, C}, N ij is the frequency of amino acid i in secondary structure element j, and L is the length of the sequence. We used N-terminal sequences in stead of full-length sequences. As mentioned before, the maximal secretion or translocation may require the first 100 amino acids [13-15]. ...
Nucleotide Sequence of an Iron Superoxide Dismutase
... end of the Escherichia coli iron superoxide dismutase gene (sodB) (1, 2). Furthermore, expression of the SAM46 cDNA in E. coli cells resulted in measurable FeSOD3 activity (2). The nucleotide sequence of the SAM46 cDNA and the deduced amino acid sequence of the SAM46 protein product are shown in Fig ...
... end of the Escherichia coli iron superoxide dismutase gene (sodB) (1, 2). Furthermore, expression of the SAM46 cDNA in E. coli cells resulted in measurable FeSOD3 activity (2). The nucleotide sequence of the SAM46 cDNA and the deduced amino acid sequence of the SAM46 protein product are shown in Fig ...
TAK1-binding protein 1 is a pseudophosphatase
... TAK1 (transforming growth factor-β-activated kinase 1) is activated when cells are stimulated with bacterial LPS (lipopolysaccharide) or the pro-inflammatory cytokines TNF (tumour necrosis factor) and IL-1 (interleukin-1). It plays a key role in switching on several pro-inflammatory signalling pathw ...
... TAK1 (transforming growth factor-β-activated kinase 1) is activated when cells are stimulated with bacterial LPS (lipopolysaccharide) or the pro-inflammatory cytokines TNF (tumour necrosis factor) and IL-1 (interleukin-1). It plays a key role in switching on several pro-inflammatory signalling pathw ...
Protein Structure III
... t (L) is the % of identically aligned amino acids required to conserve structure where L is the length of the sequence ...
... t (L) is the % of identically aligned amino acids required to conserve structure where L is the length of the sequence ...
The Plasma Membrane: Structure and Function
... This is how many hormones are secreted and how nerve cells communicate with one another. ...
... This is how many hormones are secreted and how nerve cells communicate with one another. ...
PowerPoint Learning Quest
... body are called nucleic acids. Nucleic acids provide the directions for building proteins. The two types of nucleic acids inside of the body are DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). ...
... body are called nucleic acids. Nucleic acids provide the directions for building proteins. The two types of nucleic acids inside of the body are DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). ...
22: Peptides, Proteins, and
... R group structures, it is helpful for us to group the "standard" amino acids in the three categories shown in Figure (graphic 22.6). R groups of the 5 "charged polar" amino acids are electrically charged (- or +) at physiological pH values (about pH 7), while those of the remaining 15 amino acids ar ...
... R group structures, it is helpful for us to group the "standard" amino acids in the three categories shown in Figure (graphic 22.6). R groups of the 5 "charged polar" amino acids are electrically charged (- or +) at physiological pH values (about pH 7), while those of the remaining 15 amino acids ar ...
a) A, B
... __ 18. Polymers of polysaccharides, fats, and proteins are all synthesized from monomers by: a) connecting monosaccharides together b) the addition of water to each monomer c) the removal of water (dehydration synthesis) d) ionic bonding of the monomers e) the formation of disulfide bridges between ...
... __ 18. Polymers of polysaccharides, fats, and proteins are all synthesized from monomers by: a) connecting monosaccharides together b) the addition of water to each monomer c) the removal of water (dehydration synthesis) d) ionic bonding of the monomers e) the formation of disulfide bridges between ...
Chapter 2 - Chemical Engineering - Michigan Technological University
... Single or multi-celled organisms that contain chloroplasts and perform photosynthesis. Size is 10 - 30 µm. Diatoms contain silica in their cell walls and are used as filter aids in industry. Some algae are used in the wastewater treatment industry with simultaneous production of single-cell protein. ...
... Single or multi-celled organisms that contain chloroplasts and perform photosynthesis. Size is 10 - 30 µm. Diatoms contain silica in their cell walls and are used as filter aids in industry. Some algae are used in the wastewater treatment industry with simultaneous production of single-cell protein. ...
biochemistry
... – They are usually from a plant source and liquid at room temperature. Lower health risk. ...
... – They are usually from a plant source and liquid at room temperature. Lower health risk. ...
Proteolysis
Proteolysis is the breakdown of proteins into smaller polypeptides or amino acids. Uncatalysed, the hydrolysis of peptide bonds is extremely slow, taking hundreds of years. Proteolysis is typically catalysed by cellular enzymes called proteases, but may also occur by intra-molecular digestion. Low pH or high temperatures can also cause proteolysis non-enzymatically.Proteolysis in organisms serves many purposes; for example, digestive enzymes break down proteins in food to provide amino acids for the organism, while proteolytic processing of a polypeptide chain after its synthesis may be necessary for the production of an active protein. It is also important in the regulation of some physiological and cellular processes, as well as preventing the accumulation of unwanted or abnormal proteins in cells. Consequently, dis-regulation of proteolysis can cause diseases, and is used in some venoms to damage their prey.Proteolysis is important as an analytical tool for studying proteins in the laboratory, as well as industrially, for example in food processing and stain removal.