| 词汇 | apolar |
| 释义 | BETA Examples of apolarapolar isn’t in the Cambridge Dictionary yet. You can help! Apolar residues generally seek the company of others so that together they can be shielded from the aqueous environment. These positions are generally occupied by apolar residues such as leucine, valine, isoleucine and alanine. The two chains in the molecule together therefore could form a minimal -sheet of two chains with one face of the sheet being apolar. However, in this case the structure formed would consist of a pair of -sheets stabilized by apolar residues lying along the interface between them. This must occur because the localization of numerous apolar residues in an aqueous milieu is energetically unfavourable. On average about five times more of the polar organic compounds (such as stearic and salicylic acid) are incorporated relative to the apolar compounds. By the 16-cell stage, cells differ in both morphology and position; a few inner apolar cells are enclosed by outer polar cells. Some structural rearrangement is also required to ensure that the apolar seam on both sides of the link remains internal. The sequence repeat naturally generates periodicities in the linear distributions of acidic residues, basic residues and\\or apolar residues. The effect of this is to rotate the apolar seam defined by the a and d residues. Their ratios of apolar to polar amino acids are smaller and the principles of their topology are different. Apolar amino acids tend to be found in the interior of soluble proteins, and polar (including ionized) ones at their surface. Division of polar cells can occur in different planes thereby generating either two identical polar cells (by conservative division) or one polar and one apolar cell (by differentiate division). Thus, in general two or more -helices assemble by coiling around one another to form a multi-stranded coiled-coil molecule stabilized by systematic close packing of apolar residues along the axis. Based on these experiences with melittin, we recommend to use fully hydrated model membranes to determine secondary structure and orientation of peptides that combine polar and apolar character. The total lipid extracts were subsequently separated by column chromatography into apolar and total polar fractions, and the apolar fractions were further separated into saturated and unsaturated fractions. Any region of sequence with potential to form a -sheet with an apolar face would result in alternating high and low scores of the hydropathy index. Greater quantities of small molecules with carboxylic acid groups are incorporated as intracrystalline inclusions within sulphate minerals than apolar hydrocarbon molecules. The foregoing results demonstrating apolar ester and 3-epiecdysteroid formation in vitro but not in vivo, demonstrate that experiments in vitro may not always accurately reflect the situation in vivo. The polar side (with the hydroxyl group) interacts with the solvent leaving the apolar to the catalyst surface. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. |
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