| 词汇 | example_english_amino-acid |
| 释义 | Examples of amino acidThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Since the decay times are drastically different the relative amounts of each aminoacid can be determined for each spot on the gel. Most mutations that have been observed to date involve simple single nucleotide changes, resulting in inappropriate aminoacid substitutions in an otherwise perfect chain. Within the mitochondrial chaperonins the aminoacid sequence is highly conserved. The aminoacid profile in plants is not the same as animal requirements, so to meet requirements of some essential amino acids, farmers overfeed protein. A flagellin lacking the outer domain and its aminoacid sequence lacking an internal segment. All of these mutations represent single nucleotide substitutions resulting in insertion of another aminoacid instead. The 162 aminoacid residue protein has two disulphides and one sulfhydryl group. The aminopeptidase was capable of hydrolysing different amino acids bound to 7-amino-4-trifluoromethyl coumarin, with maximal activity against the aminoacid, leucine. The aminoacid content of the stimulus control was subtracted. These nucleotide biases have a significant effect on the codon usage patterns and, thus, on the aminoacid composition of the proteins. Of the 136 aminoacid residues identified, the residues at position 32, 33, 75, 79, 91 and 97 have been substituted. Tumor necrosis factor stimulates aminoacid transport in plasma membrane vesicles from rat liver. All major pathways of filarial lipid, aminoacid and nucleic acid metabolism need to be elucidated if new generations of anthelmintics are to be developed. Identification of thermophilic species by the aminoacid compositions deduced from their genomes. Potential functions of the 18 genes included: aminoacid metabolism (6), energy production (4), transport (3), and stress response (2). For two compounds (glycerol and glyceric acid) abundances were determined on the same order of magnitude as for the aminoacid glycine. This protein spot was used for aminoacid sequence analysis. The most frequent aminoacid whose sidechain is contacting the magnesium ion is aspartate (42 %), followed by threonine (23 %), glutamate (17 %) and serine (10 %). Statistical coupling is the extent to which an aminoacid at one site changes in response to a perturbation at another site. Environment affects aminoacid preferences for secondary structure. The affected protein may be misfolded or truncated, or it may contain an expanded repeat or aminoacid substitution. Therefore, the delicate folding process of many membrane proteins makes them particularly sensitive to single aminoacid changes. One subunit (top right) has been displaced to display the location of the aminoacid substitutions (in cyan and white). The scale bar represents the phylogenetic distance expressed as expected aminoacid substitutions per site. The structure proposed here is based on primary aminoacid sequence and has yet to be confirmed by crystallographic studies. It could also simply reflect a problem of aminoacid saturation that it is difficult to correct for. The focus of the book is less on biological issues than on algorithms (although alignment of nucleotide and aminoacid sequences are only superficially covered). They were divided into different groups according to aminoacid sequence similarities. The position of the aminoacid in the protein is indicated on the left side. Ammonium was the major source of mineral nitrogen, and glutamine was the most abundant free aminoacid. The predicted aminoacid at position 213 is a valine in opsin1 and an isoleucine in the opsin1like sequences. Comparative modelling and analysis of aminoacid substitutions suggests that the family of pregnancy-associated glycoproteins includes both active and inactive aspartic proteinases. The analysis of the total aminoacid content of the zebrafish chorion was also compared with those reported in the literature. Almost all of its amino acids in suggested tuning positions are identical in the halibut ultraviolet opsin (expect one aminoacid). The number of the aminoacid residue is shown to the left. The increased distance between taurine-release sites and glycinergic receptors might significantly reduce the number of receptors activated by the endogenous aminoacid. The aminoacid sequences of the active sites in both toxins were also compared. Finally, one aminoacid looks like an afterthought : the pathway to histidine is an extension of nucleotide synthesis and takes 26 steps in all. These studies investigate under-well defined physico-chemical conditions synthetic routes how the simplest carbon hydrate-glycolaldehyde-and the simplest aminoacid-glycine-together with their isomers can be formed. The plasma aminoacid values obtained at these four time points were averaged and the mean values were employed in the statistical analyses. Consistent with this idea, genes involved in male fertility often evolve faster than most other genes both in aminoacid sequence and in expression. Quantifying and directing metabolic flux : application to aminoacid overproduction. Influence of aminoacid substitutions related to inherited human prion diseases on the thermodynamic stability of the cellular prion protein. Effect on the fetus of infusing a commercial aminoacid preparation into a pregnant sheep. Only two of the 10 aminoacid variants detected were not singletons. It must be borne in mind always that the efficacy of a vaccine depends on more than the primary aminoacid sequence of the antigen. Aside from the hydrophobic hairpin, the colicins are rich in charged aminoacid residues. The serotyped strains were identified using biochemical tests such as aminoacid and sugar assimilation tests. How different aminoacid sequences determine similar protein structures : the structure and evolutionary dynamics of the globins. Activation of aminoacid uptake at fertilization in the sea urchin egg. Assembly of the inhibitory glycine receptor: identification of aminoacid sequence motifs governing subunit stoichiometry. It is a very rare aminoacid, occurring naturally in only a few microfungi. Preliminary observations suggest that mutations which result in a change in electron charge of the encoded aminoacid will be associated with significantly worse prognosis. L-methionine is well recognized as an essential aminoacid in the nutrition of many animal species. Interestingly, high aminoacid homologies were observed only to genes isolated from prokaryotes. Thus, despite the aminoacid differences in these regions, it does not seem to change their function. Of the 7 aminoacid substitutions estimated (after reconstruction of ancestral states), 5 led to identical residues, 2 were nonsynonymous, and none was synonymous. The protein has a high disulphide content, 10% of all aminoacid residues being disulphide-bonded cysteines. The pattern specifies four leucines each separated by six residues each of which may be any aminoacid. The high ratio of aminoacid altering to silent codon substitutions in this region supports the idea that this region is involved in species recognition. These authors attributed this fall in plasma serine concentration to the consumption of the aminoacid by the tumour. Current concepts of protein turnover and aminoacid transport in liver and skeletal muscle during sepsis. Cross-species protein identification using aminoacid composition, peptide mass fingerprinting, isoelectric point and molecular mass : a theoretical evaluation. Structural studies of the scrapie prion protein using mass spectrometry and aminoacid sequencing. The mutation occurred in the gene encoding rhodopsin and induced an aminoacid substitution known to result in misfolding of the protein. We then compared the aminoacid sequence to databases of current known proteins that had already been studied. A method for detecting positive selection at single aminoacid sites. Note that the number of green circles does not represent the number of aminoacid residues (fig002drn). Approximately 40 % of distinct aminoacid substitutions involved replacement with a proline residue. The open cavity of the binding interface is shown in surface representation with indication of the aminoacid components. The subtle nature of aminoacid substitutions makes it difficult to establish whether the substitution of a single amino acid is actually causing the disease. It is a protein with approximately 1000 aminoacid residues and comprises extracellular, transmembrane and intracellular domains. In addition, aminoacid residues did not differ between the ivy fruit gall midge and the soybean pod gall midge. Similarly, the detached leaves of both cultivars, either under non-submerged or submerged conditions, had higher aminoacid concentrations than the attached leaves. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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