2jj2: Difference between revisions
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==Overview== | ==Overview== | ||
The structures of F(1)-ATPase from bovine heart mitochondria inhibited, with the dietary phytopolyphenol, resveratrol, and with the related, polyphenols quercetin and piceatannol have been determined at 2.3-, 2.4-, and 2.7-A resolution, respectively. The inhibitors bind to a common site, in the inside surface of an annulus made from loops in the three alpha-, and three beta-subunits beneath the "crown" of beta-strands in their, N-terminal domains. This region of F(1)-ATPase forms a bearing to allow, the rotation of the tip of the gamma-subunit inside the annulus during, catalysis. The binding site is a hydrophobic pocket between the C-terminal, tip of the gamma-subunit and the beta(TP) subunit, and the inhibitors are, bound via H-bonds mostly to their hydroxyl moieties mediated by bound, ... | The structures of F(1)-ATPase from bovine heart mitochondria inhibited, with the dietary phytopolyphenol, resveratrol, and with the related, polyphenols quercetin and piceatannol have been determined at 2.3-, 2.4-, and 2.7-A resolution, respectively. The inhibitors bind to a common site, in the inside surface of an annulus made from loops in the three alpha-, and three beta-subunits beneath the "crown" of beta-strands in their, N-terminal domains. This region of F(1)-ATPase forms a bearing to allow, the rotation of the tip of the gamma-subunit inside the annulus during, catalysis. The binding site is a hydrophobic pocket between the C-terminal, tip of the gamma-subunit and the beta(TP) subunit, and the inhibitors are, bound via H-bonds mostly to their hydroxyl moieties mediated by bound, water molecules and by hydrophobic interactions. There are no equivalent, sites between the gamma-subunit and either the beta(DP) or the beta(E), subunit. The inhibitors probably prevent both the synthetic and hydrolytic, activities of the enzyme by blocking both senses of rotation of the, gamma-subunit. The beneficial effects of dietary resveratrol may derive in, part by preventing mitochondrial ATP synthesis in tumor cells, thereby, inducing apoptosis. | ||
==About this Structure== | ==About this Structure== | ||
2JJ2 is a | 2JJ2 is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] with MG, AZI, PO4, ANP, ADP, QUE and GOL as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/Transferred_entry:_3.6.3.14 Transferred entry: 3.6.3.14], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.1.34 3.6.1.34] Structure known Active Site: AC1. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2JJ2 OCA]. | ||
==Reference== | ==Reference== | ||
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[[Category: transport]] | [[Category: transport]] | ||
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Mon Nov 5 13:51:40 2007'' | ||
