{"id":193,"date":"2026-08-25T22:33:05","date_gmt":"2026-08-25T20:33:05","guid":{"rendered":"https:\/\/www.veyronalabs.com\/index.php\/product\/ll-37-5-mg\/"},"modified":"2026-10-15T00:02:45","modified_gmt":"2026-10-14T22:02:45","slug":"ll-37-5-mg","status":"publish","type":"product","link":"https:\/\/www.veyronalabs.com\/de\/product\/ll-37-5-mg\/","title":{"rendered":"LL-37 5 mg"},"content":{"rendered":"<style>\n<p>.vl-premium{--gold:#c99a2e;--soft:#f7f0df;--ink:#15171a;--muted:#62666d;--line:#e7e2d8;max-width:1180px;margin:38px auto 0;color:var(--ink);font-family:inherit}.vl-premium *{box-sizing:border-box}.vl-premium h2,.vl-premium h3,.vl-premium h4{color:var(--ink);letter-spacing:-.02em}.vl-premium h2{font-size:clamp(30px,4vw,46px);margin:0 0 12px}.vl-premium h3{font-size:clamp(23px,3vw,31px);margin:0 0 18px}.vl-premium h4{font-size:18px;margin:0 0 8px}.vl-premium p{line-height:1.72}.vl-premium 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0}.vl-grid4,.vl-grid3,.vl-grid2,.vl-trust{grid-template-columns:1fr}.vl-card,.vl-panel,.vl-lab{padding:22px}.vl-lead{font-size:17px}}<\/p>\n<p>.vl-accordions{display:grid;gap:12px}.vl-acc{border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden}.vl-acc summary{display:grid;grid-template-columns:48px 1fr 28px;gap:16px;align-items:center;padding:18px 22px;cursor:pointer;font-weight:800;list-style:none}.vl-acc summary::-webkit-details-marker{display:none}.vl-acc-num{display:inline-flex;width:42px;height:42px;align-items:center;justify-content:center;border-radius:50%;background:var(--gold);color:#fff;font-size:13px}.vl-acc-arrow{font-size:24px;color:var(--gold);text-align:center;transition:transform .2s}.vl-acc[open] .vl-acc-arrow{transform:rotate(180deg)}.vl-acc-body{padding:0 22px 20px 86px;color:var(--muted)}.vl-acc-body p{margin:0}@media(max-width:560px){.vl-acc summary{grid-template-columns:42px 1fr 22px;padding:16px}.vl-acc-body{padding:0 16px 18px 74px}}\n.vl-tech{margin-top:28px;border:1px solid rgba(201,154,46,.42);border-radius:18px;overflow:hidden;background:#111318;color:#fff;box-shadow:0 14px 36px rgba(17,19,24,.13)}\n.vl-tech-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;padding:20px 22px;border-bottom:1px solid rgba(201,154,46,.30);background:linear-gradient(135deg,#0d0f13,#171a20)}\n.vl-tech-head span{color:#d7ae4f;font-size:12px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}\n.vl-tech-head strong{color:#d9dce2;font-size:13px;font-weight:600;text-align:right}\n.vl-tech-body{background:#14171c}\n.vl-tech-row{display:grid;grid-template-columns:minmax(155px,.72fr) minmax(0,1.55fr);gap:24px;padding:15px 22px;border-bottom:1px solid rgba(255,255,255,.09)}\n.vl-tech-row:last-child{border-bottom:0}\n.vl-tech-row span{color:#d7ae4f;font-size:13px;font-weight:750}\n.vl-tech-row strong{color:#f5f5f6;font-size:14px;font-weight:600;line-height:1.55;overflow-wrap:anywhere}\n@media(max-width:680px){.vl-tech-head{display:block;padding:18px 16px}.vl-tech-head strong{display:block;margin-top:6px;text-align:left;font-size:12px}.vl-tech-row{grid-template-columns:1fr;gap:4px;padding:13px 16px}.vl-tech-row span{font-size:11px;letter-spacing:.04em;text-transform:uppercase}.vl-tech-row strong{font-size:13px}}\n<\/style>\n<div class=\"vl-premium\">\n<section class=\"vl-hero\">\n<div class=\"vl-eye\">37-amino-acid human cathelicidin peptide \u00b7 5 mg<\/div>\n<h2>LL-37 5 mg<\/h2>\n<p class=\"vl-lead\">LL-37 is a human defence peptide studied for its interaction with microbial membranes, immune-cell communication, protective surface tissues and tissue-repair responses.<\/p>\n<div class=\"vl-tech\" aria-label=\"Technical product data\">\n<div class=\"vl-tech-head\"><span>Technical product data<\/span><strong>Quality and identity at a glance<\/strong><\/div>\n<div class=\"vl-tech-body\">\n<div class=\"vl-tech-row\"><span>Purity \/ analysis<\/span><strong>Determined per batch in the applicable laboratory report<\/strong><\/div>\n<div class=\"vl-tech-row\"><span>Physical form<\/span><strong>Freeze-dried peptide research material<\/strong><\/div>\n<div class=\"vl-tech-row\"><span>Declared content<\/span><strong>5 mg<\/strong><\/div>\n<div class=\"vl-tech-row\"><span>Packaging<\/span><strong>1 sealed laboratory vial<\/strong><\/div>\n<div class=\"vl-tech-row\"><span>Peptide type<\/span><strong>37-amino-acid human cathelicidin peptide<\/strong><\/div>\n<div class=\"vl-tech-row\"><span>Sequence<\/span><strong>LLGDFFRKSKEKIGKEFKRIVQRIKDFLRNLVPRTES<\/strong><\/div>\n<div class=\"vl-tech-row\"><span>Molecular formula<\/span><strong>C205H340N60O53<\/strong><\/div>\n<div class=\"vl-tech-row\"><span>Molecular weight<\/span><strong>4493.3 g\/mol<\/strong><\/div>\n<div class=\"vl-tech-row\"><span>CAS number<\/span><strong>154947-66-7<\/strong><\/div>\n<div class=\"vl-tech-row\"><span>Storage \u2014 unopened powder<\/span><strong>Keep the sealed freeze-dried vial at \u221220 \u00b0C, dry and protected from light. Let the closed vial reach room temperature before opening to limit condensation.<\/strong><\/div>\n<div class=\"vl-tech-row\"><span>Storage \u2014 after mixing with BAC water<\/span><strong>After preparation with bacteriostatic water, keep refrigerated at 2\u20138 \u00b0C and protected from light. Do not freeze; minimize repeated warming and cooling.<\/strong><\/div>\n<div class=\"vl-tech-row\"><span>Solubility \/ reconstitution<\/span><strong>Bacteriostatic water \u2014 1 ml per vial<\/strong><\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"vl-sec\">\n<div class=\"vl-eye\">Main research areas<\/div>\n<h3>Why do researchers study LL-37?<\/h3>\n<div class=\"vl-grid4\">\n<article class=\"vl-card\"><span class=\"vl-num\">01<\/span><\/p>\n<h4>Microbial membranes<\/h4>\n<p>How the peptide binds to and changes selected membrane structures.<\/p>\n<\/article>\n<article class=\"vl-card\"><span class=\"vl-num\">02<\/span><\/p>\n<h4>Innate defence<\/h4>\n<p>An early layer of biological defence at exposed body surfaces.<\/p>\n<\/article>\n<article class=\"vl-card\"><span class=\"vl-num\">03<\/span><\/p>\n<h4>Immune communication<\/h4>\n<p>Movement and signalling of immune cells in experimental models.<\/p>\n<\/article>\n<article class=\"vl-card\"><span class=\"vl-num\">04<\/span><\/p>\n<h4>Barrier-tissue repair<\/h4>\n<p>Responses of skin and other protective surface tissues after damage.<\/p>\n<\/article>\n<\/div>\n<\/section>\n<section class=\"vl-sec\">\n<div class=\"vl-split\">\n<div class=\"vl-panel\">\n<div class=\"vl-eye\">Simple explanation<\/div>\n<h3>What is LL-37?<\/h3>\n<p>LL-37 is the active 37-amino-acid peptide released from the human cathelicidin precursor hCAP18. It is produced by several immune and surface-tissue cells.<\/p>\n<p>Its positive charge and structure allow it to interact with negatively charged membranes, while separate signalling effects connect it with immune communication and tissue repair.<\/p>\n<\/div>\n<div class=\"vl-panel vl-gold\">\n<div class=\"vl-eye\">Research focus<\/div>\n<h3>One peptide with two research roles<\/h3>\n<p>LL-37 research combines direct membrane studies with experiments on host-cell signalling. This lets researchers compare physical effects on membranes with biological responses inside cells.<\/p>\n<p>Salt concentration, proteins in the surrounding liquid and peptide concentration are important variables when these activities are measured.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"vl-sec\">\n<div class=\"vl-eye\">Research explained<\/div>\n<h3>What have studies found?<\/h3>\n<div class=\"vl-grid2\">\n<article class=\"vl-card\"><span class=\"vl-tag\">Membrane studies<\/span><\/p>\n<h4>Interaction with microbial surfaces<\/h4>\n<p>Laboratory experiments show that LL-37 can bind to selected microbial membranes and alter their organization.<\/p>\n<\/article>\n<article class=\"vl-card\"><span class=\"vl-tag\">Immune-cell research<\/span><\/p>\n<h4>Chemotaxis and communication<\/h4>\n<p>LL-37 is studied in signalling pathways that influence how immune cells move and communicate.<\/p>\n<\/article>\n<article class=\"vl-card\"><span class=\"vl-tag\">Barrier-tissue models<\/span><\/p>\n<h4>Epithelial responses<\/h4>\n<p>Cell and tissue models examine LL-37 in wound closure and the renewal of protective surface layers.<\/p>\n<\/article>\n<article class=\"vl-card\"><span class=\"vl-tag\">Biofilm research<\/span><\/p>\n<h4>Organized microbial communities<\/h4>\n<p>Researchers use LL-37 to study how defence peptides interact with biofilms and their surrounding matrix.<\/p>\n<\/article>\n<\/div>\n<\/section>\n<section class=\"vl-sec\">\n<div class=\"vl-split\" style=\"grid-template-columns:1fr\">\n<div class=\"vl-panel\">\n<div class=\"vl-eye\">Scientific publications<\/div>\n<h3>Selected research<\/h3>\n<ul class=\"vl-pubs\">\n<li><strong>Vandamme D et al. A comprehensive summary of LL-37, the factotum human cathelicidin peptide. Cell Immunol. 2012;280:22\u201335.<\/strong><\/li>\n<li><strong>D\u00fcrr UHN, Sudheendra US, Ramamoorthy A. LL-37, the only human member of the cathelicidin family of antimicrobial peptides. Biochim Biophys Acta. 2006;1758:1408\u20131425.<\/strong><\/li>\n<li><strong>Kahlenberg JM, Kaplan MJ. Little peptide, big effects: the role of LL-37 in inflammation and autoimmune disease. J Immunol. 2013;191:4895\u20134901.<\/strong><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"vl-sec\">\n<div class=\"vl-eye\">Practical information<\/div>\n<h3>Product details at a glance<\/h3>\n<div class=\"vl-accordions\">\n<details class=\"vl-acc\" open>\n<summary><span class=\"vl-acc-num\">01<\/span><span>Research areas<\/span><span class=\"vl-acc-arrow\">\u2304<\/span><\/summary>\n<div class=\"vl-acc-body\">\n<p>LL-37 is studied in microbial-membrane interactions, innate defence, immune-cell signalling, biofilms and barrier-tissue repair.<\/p>\n<\/div>\n<\/details>\n<details class=\"vl-acc\">\n<summary><span class=\"vl-acc-num\">02<\/span><span>What the package contains<\/span><span class=\"vl-acc-arrow\">\u2304<\/span><\/summary>\n<div class=\"vl-acc-body\">\n<p>One sealed laboratory vial containing 5 mg of freeze-dried LL-37 material.<\/p>\n<\/div>\n<\/details>\n<details class=\"vl-acc\">\n<summary><span class=\"vl-acc-num\">03<\/span><span>Storage of the freeze-dried product<\/span><span class=\"vl-acc-arrow\">\u2304<\/span><\/summary>\n<div class=\"vl-acc-body\">\n<p>Keep the sealed freeze-dried vial at \u221220 \u00b0C, dry and protected from light. Let the closed vial reach room temperature before opening to limit condensation.<\/p>\n<\/div>\n<\/details>\n<details class=\"vl-acc\">\n<summary><span class=\"vl-acc-num\">04<\/span><span>Storage after mixing with BAC water<\/span><span class=\"vl-acc-arrow\">\u2304<\/span><\/summary>\n<div class=\"vl-acc-body\">\n<p>After preparation with bacteriostatic water, keep refrigerated at 2\u20138 \u00b0C and protected from light. Do not freeze; minimize repeated warming and cooling.<\/p>\n<\/div>\n<\/details>\n<details class=\"vl-acc\">\n<summary><span class=\"vl-acc-num\">05<\/span><span>Why the vial can look different<\/span><span class=\"vl-acc-arrow\">\u2304<\/span><\/summary>\n<div class=\"vl-acc-body\">\n<p>Five milligrams is a very small mass. The freeze-dried material may appear as a thin layer or compact deposit at the bottom of the vial.<\/p>\n<\/div>\n<\/details>\n<\/div>\n<\/section>\n<section class=\"vl-sec\">\n<div class=\"vl-lab\">\n<div class=\"vl-eye\">Batch documentation<\/div>\n<h3>Analytical results linked to the product batch<\/h3>\n<p>Use the batch identifier on the vial to locate its matching analytical report in the Veyrona Labs results library. Published reports present batch-specific identity, purity, measured content and endotoxin results where tested.<\/p>\n<p><a href=\"\/lab-results-2\/\">View the laboratory results library<\/a><\/p>\n<\/div>\n<div class=\"vl-status\">\n<div class=\"vl-eye\">Research-use notice<\/div>\n<p>For laboratory and analytical research only. Not for human or veterinary use.<\/p>\n<\/div>\n<\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p><strong>Ein nat\u00fcrlich vorkommendes Abwehrpeptid, das im Zusammenhang mit der angeborenen Immunit\u00e4t und der mikrobiellen Reaktion untersucht wird.<\/strong><\/p>\n<p>LL-37 ist Teil der k\u00f6rpereigenen ersten Verteidigungslinie. Die Forschung untersucht, wie es mit Mikroben, Immunzellen und Gewebereparaturprozessen interagiert.<\/p>\n<p><strong>Forschungsbereiche:<\/strong> Angeborene Immunit\u00e4t \u00b7 Mikrobielle Abwehr \u00b7 Gewebereaktion<\/p>","protected":false},"featured_media":205,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[29,18],"product_tag":[],"class_list":["post-193","product","type-product","status-publish","has-post-thumbnail","product_cat-recovery-immune-research","product_cat-research-peptides","desktop-align-center","tablet-align-center","mobile-align-left","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.veyronalabs.com\/de\/wp-json\/wp\/v2\/product\/193","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.veyronalabs.com\/de\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.veyronalabs.com\/de\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.veyronalabs.com\/de\/wp-json\/wp\/v2\/comments?post=193"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.veyronalabs.com\/de\/wp-json\/wp\/v2\/media\/205"}],"wp:attachment":[{"href":"https:\/\/www.veyronalabs.com\/de\/wp-json\/wp\/v2\/media?parent=193"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.veyronalabs.com\/de\/wp-json\/wp\/v2\/product_brand?post=193"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.veyronalabs.com\/de\/wp-json\/wp\/v2\/product_cat?post=193"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.veyronalabs.com\/de\/wp-json\/wp\/v2\/product_tag?post=193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}