2sbl

<table><tr><td colspan='2'>[[2sbl]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Glycine_hispida Glycine hispida]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2SBL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2SBL FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene></td></tr>

<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Oxidoreductase Oxidoreductase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.13.11.12 1.13.11.12] </span></td></tr>

[[https://www.uniprot.org/uniprot/LOX1_SOYBN LOX1_SOYBN]] Plant lipoxygenase may be involved in a number of diverse aspects of plant physiology including growth and development, pest resistance, and senescence or responses to wounding. With linoleate as substrate, L-1 shows a preference for carbon 13 as the site for hydroperoxidation (in contrast to L-2 and L-3, which utilize either carbon 9 or 13). At pH above 8.5, only (9Z,11E,13S)-13-hydroperoxyoctadeca-9,11-dienoate is produced, but as the pH decreases, the proportion of (9S)-hydroperoxide increases linearly until at pH 6.0 it represents about 25 % of the products.<ref>PMID:16157595</ref>

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== Publication Abstract from PubMed ==

In mammals, the hydroperoxidation of arachidonic acid by lipoxygenases leads to the formation of leukotrienes and lipoxins, compounds that mediate inflammatory responses. Lipoxygenases are dioxygenases that contain a nonheme iron and are present in many animal cells. Soybean lipoxygenase-1 is a single-chain, 839-residue protein closely related to mammalian lipoxygenases. The structure of soybean lipoxygenase-1 solved to 2.6 angstrom resolution shows that the enzyme has two domains: a 146-residue beta barrel and a 693-residue helical bundle. The iron atom is in the center of the larger domain and is coordinated by three histidines and the COO- of the carboxyl terminus. The coordination geometry is nonregular and appears to be a distorted octahedron in which two adjacent positions are not occupied by ligands. Two cavities, in the shapes of a bent cylinder and a frustum, connect the unoccupied positions to the surface of the enzyme. The iron, with two adjacent and unoccupied positions, is poised to interact with the 1,4-diene system of the substrate and with molecular oxygen during catalysis.

The three-dimensional structure of an arachidonic acid 15-lipoxygenase.,Boyington JC, Gaffney BJ, Amzel LM Science. 1993 Jun 4;260(5113):1482-6. PMID:8502991<ref>PMID:8502991</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>

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<div class="pdbe-citations 2sbl" style="background-color:#fffaf0;"></div>

[[Category: Glycine hispida]]

[[Category: Amzel, L M]]

[[Category: Boyington, J C]]