{"id":183,"date":"2023-06-22T14:15:07","date_gmt":"2023-06-22T14:15:07","guid":{"rendered":"https:\/\/www.boltzmannmaps.com\/blog\/?p=183"},"modified":"2024-01-12T14:32:34","modified_gmt":"2024-01-12T14:32:34","slug":"100-pdb-availability-and-automation-of-protein-preparation","status":"publish","type":"post","link":"https:\/\/www.boltzmannmaps.com\/blog\/100-pdb-availability-and-automation-of-protein-preparation\/","title":{"rendered":"100% PDB Availability and Automation of Protein Preparation"},"content":{"rendered":"\n<p>With the new release of <a href=\"https:\/\/www.boltzmannmaps.com\/login\" target=\"_blank\" rel=\"noreferrer noopener\">Boltzmann Maps<\/a> comes enhanced reliability for protein structure loading and automation of protein preparation for energy minimization, docking and fragment simulations. The entirety of the <a href=\"https:\/\/www.rcsb.org\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Protein Data Bank<\/a> (PDB) is now available to view in Boltzmann Maps.&nbsp;<\/p>\n\n\n\n<p>As an example, <a href=\"http:\/\/www.boltzmannmaps.com\/login\">log into BMaps<\/a> to view PDB ID 3n7h: <a href=\"https:\/\/www.boltzmannmaps.com\/structure\/3n7h\">https:\/\/www.boltzmannmaps.com\/structure\/3n7h<\/a>. The PDB featured this mosquito odorant binding protein in complex with DEET (DE3 ligand) as one of the &#8220;Molecules of the Month&#8221; for June 2023.<\/p>\n\n\n\n<!--more-->\n\n\n\n<p>Along with the ability to import directly from PDB, all small molecules are automatically assigned forcefield parameters and partial charges. We tested almost 200,000 entries from the PDB for successful accessibility in this release. Although all structures can load, obtaining forcefield parameters fails on a small number of cases due to errors in the PDB source. We are working with the PDB to have these corrected. Computing partial charges uses the AM1 semi-empirical method with the AM1-BCC corrections (via <a href=\"https:\/\/ambermd.org\/AmberTools.php\">AmberTools<\/a>).&nbsp;&nbsp;In cases where AM1 fails, PM6 is now used as a backup to handle more cases.<\/p>\n\n\n\n<p>Unlike structures imported from the PDB, Boltzmann Maps prepared structures are always ready for computation. Our science team continues to optimize and validate new structures with enhanced protein preparation.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"692\" src=\"https:\/\/www.boltzmannmaps.com\/blog\/wp-content\/uploads\/2023\/06\/chrome_zpqDXmyXHN-1024x692.png\" alt=\"The BMaps design environment is shown after importing PDB ID 3n7h from the PDB and docking and minimizing the DE3 ligand from Chain A. The list of compounds includes the DE3 crystal ligand and the results from docking. The energy table for the docked pose is shown. The mouse is highlighting the &quot;Run Frag Sim&quot; menu option.\" class=\"wp-image-251\" srcset=\"https:\/\/www.boltzmannmaps.com\/blog\/wp-content\/uploads\/2023\/06\/chrome_zpqDXmyXHN-1024x692.png 1024w, https:\/\/www.boltzmannmaps.com\/blog\/wp-content\/uploads\/2023\/06\/chrome_zpqDXmyXHN-300x203.png 300w, https:\/\/www.boltzmannmaps.com\/blog\/wp-content\/uploads\/2023\/06\/chrome_zpqDXmyXHN-768x519.png 768w, https:\/\/www.boltzmannmaps.com\/blog\/wp-content\/uploads\/2023\/06\/chrome_zpqDXmyXHN.png 1343w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">BMaps binding site view of PDB ID 3n7h after importing the structure and docking and minimizing the DE3 ligand.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Behind the scenes protein preparation improvements<\/h2>\n\n\n\n<p>The improved coverage of PDB ligands is facilitated by the new mmCIF version of the <a href=\"https:\/\/www.rcsb.org\/news\/6304ee57707ecd4f63b3d3db\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">PDB Chemical Component Dictionary<\/a>, which contains bond order information for ligands in PDB structure files. The new format improves on the older het_dictionary.txt, resulting in more reliable preparation of forcefield parameters for these ligands.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p> <\/p>\n","protected":false},"excerpt":{"rendered":"<p>With the new release of Boltzmann Maps comes enhanced reliability for protein structure loading and automation of protein preparation for energy minimization, docking and fragment simulations. The entirety of the Protein Data Bank (PDB) is now available to view in Boltzmann Maps.&nbsp; As an example, log into BMaps to view PDB ID 3n7h: https:\/\/www.boltzmannmaps.com\/structure\/3n7h. The &hellip; <\/p>\n<p><a href=\"https:\/\/www.boltzmannmaps.com\/blog\/100-pdb-availability-and-automation-of-protein-preparation\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">100% PDB Availability and Automation of Protein Preparation<\/span> &rarr;<\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-183","post","type-post","status-publish","format-standard","hentry","category-product-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>100% PDB Availability and Automation of Protein Preparation - Boltzmann Maps<\/title>\n<meta name=\"description\" content=\"BMaps protein preparation enables energy minimization, docking and fragment simulation on most of the PDB. 100% of the PDB can be visualized.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.boltzmannmaps.com\/blog\/100-pdb-availability-and-automation-of-protein-preparation\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"100% PDB Availability and Automation of Protein Preparation - Boltzmann Maps\" \/>\n<meta property=\"og:description\" content=\"BMaps protein preparation enables energy minimization, docking and fragment simulation on most of the PDB. 100% of the PDB can be visualized.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.boltzmannmaps.com\/blog\/100-pdb-availability-and-automation-of-protein-preparation\/\" \/>\n<meta property=\"og:site_name\" content=\"Boltzmann Maps\" \/>\n<meta property=\"article:published_time\" content=\"2023-06-22T14:15:07+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-01-12T14:32:34+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.boltzmannmaps.com\/blog\/wp-content\/uploads\/2023\/06\/chrome_zpqDXmyXHN-1024x692.png\" \/>\n<meta name=\"author\" content=\"Jacob Chappell\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jacob Chappell\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.boltzmannmaps.com\/blog\/100-pdb-availability-and-automation-of-protein-preparation\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.boltzmannmaps.com\/blog\/100-pdb-availability-and-automation-of-protein-preparation\/\"},\"author\":{\"name\":\"Jacob Chappell\",\"@id\":\"https:\/\/www.boltzmannmaps.com\/blog\/#\/schema\/person\/399adb19e4625322de5bab70d394ec03\"},\"headline\":\"100% PDB Availability and Automation of Protein Preparation\",\"datePublished\":\"2023-06-22T14:15:07+00:00\",\"dateModified\":\"2024-01-12T14:32:34+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.boltzmannmaps.com\/blog\/100-pdb-availability-and-automation-of-protein-preparation\/\"},\"wordCount\":297,\"publisher\":{\"@id\":\"https:\/\/www.boltzmannmaps.com\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.boltzmannmaps.com\/blog\/100-pdb-availability-and-automation-of-protein-preparation\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.boltzmannmaps.com\/blog\/wp-content\/uploads\/2023\/06\/chrome_zpqDXmyXHN-1024x692.png\",\"articleSection\":[\"Product News\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.boltzmannmaps.com\/blog\/100-pdb-availability-and-automation-of-protein-preparation\/\",\"url\":\"https:\/\/www.boltzmannmaps.com\/blog\/100-pdb-availability-and-automation-of-protein-preparation\/\",\"name\":\"100% PDB Availability and Automation of Protein Preparation - 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