Some of the important functional groups in biological molecules are shown above; they include: hydroxyl, methyl, carbonyl, carboxyl, amino, phosphate, and sulfhydryl (R-S-H). ... An example of a nonpolar group is themethyl group(see discussion in Atoms to Bonds for more detail). ...
Such a scenario is supported by the observation that DRB1*01:01 methyl groups in that region report on dynamics on the µs–ms timescale in 1H-13C-methyl Carr–Purcell–Meiboom–Gill (CPMG) relaxation dispersion NMR measurements (Fig. 4a, c and Supplementary Table 7), indicating that the...
The solubility of organic molecules is often summarized by the phrase, "like dissolves like." This means thatmolecules with many polar groups are more soluble in polar solvents, and molecules with few or no polar groups (i.e., nonpolar molecules) are more soluble in nonpolar solvents. Is CCl...
reported. For instance,Aspergillus ochraceusproduces several sesquiterpenoids which are rare [67]. Similarly, the marine fungusEutypella scopariaproduces a 7-methyl oxidized 2-carene derivative [68], and the marine fungusCochliobolus lunatusproduces two dendryphiellins, both of which are rare terpenes ...
In many common protein secondary structures, such as alpha-, 3(10), and polyproline II helices, an n --> pi* interaction places the adjacent backbone amide carbonyl groups in close proximity to each other. This interaction, which is reminiscent of the Burgi-Dunitz trajectory, involves delocali...
5. Process according to claim 4, characterized in that a lower C1-C4alcohol or a nonpolar solvent such as toluene is used as the solvent. 6. Process according to claim 1, characterized in that the reaction is carried out in a single step. ...
The Lennard-Jones parameters for the atomic fluids and the modified Stockmeyer parameters for the CH3I/Ar and CH3I/Kr interactions were identical to the parameters used to model accurately the perturber-induced shift of the dopant ionization energy for methyl iodide in argon [12–14, 61], ...
(H-bonds, gray dashed lines; cation-π interactions, red dashed lines). The color-coding of residues/residue labels is as follows: residues that contact the Rif scaffold in the Rif/RNAP structure, cyan; residues that also make nonpolar contacts with K-sugar, yellow arc; residues that ...
(H2-DCF-DA), a nonpolar compound that is converted into a polar derivative (dichlorofluorescein) by cellular esterase after incorporation into cells7. Levels of ROS (intracellular fluorescence) were detected at excitation (Ex) 485 nm/emission (Em) 530 nm by Spectra Max Gemini EM (Mol. ...
Nonpolar polypropylene waxes: Licowax® PP 220 Licowax® PP 230 Polar polyethylene waxes: Licowax® PED 121 Licowax® PED 153 Licowax® PED 522 Reaction products of fatty acids and polyfunctional diamines (amide waxes), e.g.: Ethylene bisstearamide Licowax® C Montanic acid and...