Temperature-induced incorporation of gramicidin a into lysolecithin micelles demonstrated by 13 C NMR

2d Nmr of Single and Double Stranded Helices of Gramicidin a in Micelles and Solutions

The linear pentadecapeptide gramicidin A (GA) HCO-L-Val-Gly-L-Ala-Z)Leu4-L-Ala-£»-Val-L-Val-Z?-Val-LTrp-Z^Leu-L-Trp-Z>-Leu-L-TrpD-Leu-L-Trp-NHCH2CH2OH attracts attention due to its ability to form monovalent cations permeable channels in membranes. Once it has been appreciated (1), that two molecules of GA are combined in such a way as to span the membrane bilayer (Fig. 1) a number of detailed ...

Solvent drag across gramicidin channels demonstrated by microelectrodes.

The competition of ion and water fluxes across gramicidin channels was assessed from the concentration distributions of both pore-impermeable and -permeable cations that were simultaneously measured by double-barreled microelectrodes in the immediate vicinity of a planar bilayer. Because water movement across the membrane led to accumulation of solutes on one side of the membrane and depletion ...

a study of translation of english litrary terms into persian

چکیده هدف از پژوهش حاضر بررسی ترجمه ی واژه های تخصصی حوزه ی ادبیات به منظور کاوش در زمینه ی ترجمه پذیری آنها و نیز راهکار های به کار رفته توسط سه مترجم فارسی زبان :سیامک بابایی(1386)، سیما داد(1378)،و سعید سبزیان(1384) است. هدف دیگر این مطالعه تحقیق در مورد روش های واژه سازی به کار رفته در ارائه معادل های فارسی واژه های ادبی می باشد. در راستای این اهداف،چارچوب نظری این پژوهش راهکارهای ترجمه ار...

The preparation of morphologically intact leukocytes from peripheral blood by means of gramicidin and lysolecithin.

N INVESTIGATION of the metabolism of intact leukocytes offers a unique opportunity for studying the normal functioning of individual cells isolated from the animal body, besides being of potential importance in the study of certain diseases, such as leukemia. There are at present three principal methods used for the preparation of relatively pure leucocytes for such biochemical studies. J . A p...

Ara-C incorporation into DNA.