Multiple N-methylation of MT-II backbone amide bonds leads to melanocortin receptor subtype hMC1R selectivity: pharmacological and conformational studies.
Multiple N-methylation of MT-II backbone amide bonds leads to melanocortin receptor subtype hMC1R selectivity: pharmacological and conformational studies.
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DOI:
10.1021/ja101428m
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发表时间:
2010-06-16
影响因子:
15
通讯作者:
Kessler, Horst
中科院分区:
文献类型:
--
作者:
Doedens, Lucas;Opperer, Florian;Cai, Minying;Beck, Johannes G.;Dedek, Matt;Palmer, Erin;Hruby, Victor J.;Kessler, Horst
Multiple N-methylation is a novel technology to improve bioavailability of peptides and increase receptor subtype selectivity. This technique has been applied here to the superpotent but non-selective cyclic peptide MT-II. A library of all possible 31 backbone N-methylated derivatives has been synthesized and tested for binding and activation at melanocortin receptor subtypes 1, 3, 4 and 5. It turned out that selectivity is improved with every introduced N-methyl group, resulting in several N-methylated selective and potent agonists for the hMC1R. The most potent of these derivatives is N-methylated on four out of five amide bonds in the cyclic structure. Its solution structure indicates a strongly preferred backbone conformation which resembles other a-MSH analogs but possesses much less flexibility and in addition distinct differences in the spatial arrangement of individual amino acid side chains.
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DOI:
10.1073/pnas.78.12.7431
发表时间:
1981-01-01
期刊:
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子:
--
作者:
BUCKLEY, DI;RAMACHANDRAN, J
通讯作者:
RAMACHANDRAN, J
影响因子:
3.6
作者:
Biron, E;Kessler, H
通讯作者:
Kessler, H
DOI:
10.1006/bbrc.1993.2125
发表时间:
1993-09-15
影响因子:
3.1
作者:
CHHAJLANI, V;MUCENIECE, R;WIKBERG, JES
通讯作者:
WIKBERG, JES
影响因子:
7.3
作者:
Cai, MY;Mayorov, AV;Hruby, VJ
通讯作者:
Hruby, VJ
影响因子:
2.1
作者:
Biron, E;Chatterjee, J;Kessler, H
通讯作者:
Kessler, H