Dergi makalesi Açık Erişim
Rungeler, P; Castro, V; Mora, G; Goren, N; Vichnewski, W; Pahl, HL; Merfort, I; Schmidt, TJ
<?xml version='1.0' encoding='UTF-8'?> <record xmlns="http://www.loc.gov/MARC21/slim"> <leader>00000nam##2200000uu#4500</leader> <datafield tag="245" ind1=" " ind2=" "> <subfield code="a">Inhibition of transcription factor NF-kappa B by sesquiterpene lactones: a proposed molecular mechanism of action</subfield> </datafield> <datafield tag="909" ind1="C" ind2="4"> <subfield code="p">BIOORGANIC & MEDICINAL CHEMISTRY</subfield> <subfield code="v">7</subfield> <subfield code="n">11</subfield> <subfield code="c">2343-2352</subfield> </datafield> <controlfield tag="001">101601</controlfield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="a">user-tubitak-adresli-yayinlar</subfield> </datafield> <datafield tag="520" ind1=" " ind2=" "> <subfield code="a">Many sesquiterpene lactones (SLs) possess considerable anti-inflammatory activity. They inhibit the transcription factor NF-kappa B by selectively alkylating its p65 subunit probably by reacting with cysteine residues. Here we assayed 28 sesquiterpene lactones for their ability to inhibit NF-kappa B. The majority of the potent NF-kappa B inhibitors possess two reactive centers in form of an amethylene-gamma-lactone group and an alpha,beta- or alpha,beta,gamma,delta-unsaturated carbonyl group. Based on computer molecular modelling we propose a molecular mechanism of action, which is able to explain the p65 selectivity of the SLs and the observed correlation of high activity with alkylant bifunctionality. A single bifunctional SL molecule can alkylate the cysteine residue (Cys 38) in the DNA binding loop 1 (L1) and a further cysteine (Cys 120) in the nearby E' region. This cross link alters the position of tyrosine 36 and additional amino acids in such a way that their specific interactions with the DNA become impossible. We also created a model for monofunctional SLs. (C) 1999 Elsevier Science Ltd. All rights reserved.</subfield> </datafield> <datafield tag="650" ind1="1" ind2="7"> <subfield code="2">opendefinition.org</subfield> <subfield code="a">cc-by</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Castro, V</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Mora, G</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Goren, N</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Vichnewski, W</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Pahl, HL</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Merfort, I</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="a">Schmidt, TJ</subfield> </datafield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="b">article</subfield> <subfield code="a">publication</subfield> </datafield> <datafield tag="542" ind1=" " ind2=" "> <subfield code="l">open</subfield> </datafield> <datafield tag="100" ind1=" " ind2=" "> <subfield code="a">Rungeler, P</subfield> </datafield> <datafield tag="260" ind1=" " ind2=" "> <subfield code="c">1999-01-01</subfield> </datafield> <controlfield tag="005">20210316144218.0</controlfield> <datafield tag="773" ind1=" " ind2=" "> <subfield code="n">doi</subfield> <subfield code="a">10.81043/aperta.101600</subfield> <subfield code="i">isVersionOf</subfield> </datafield> <datafield tag="909" ind1="C" ind2="O"> <subfield code="o">oai:zenodo.org:101601</subfield> <subfield code="p">user-tubitak-adresli-yayinlar</subfield> </datafield> <datafield tag="856" ind1="4" ind2=" "> <subfield code="z">md5:07bbb89be39ac1748340481061baeb49</subfield> <subfield code="s">273</subfield> <subfield code="u">https://aperta.ulakbim.gov.trrecord/101601/files/bib-3c4ac4f6-e615-43f4-a306-37977c4275dd.txt</subfield> </datafield> <datafield tag="540" ind1=" " ind2=" "> <subfield code="u">http://www.opendefinition.org/licenses/cc-by</subfield> <subfield code="a">Creative Commons Attribution</subfield> </datafield> <datafield tag="024" ind1=" " ind2=" "> <subfield code="a">10.81043/aperta.101601</subfield> <subfield code="2">doi</subfield> </datafield> </record>
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