{"version":"1.0","provider_name":"Glossary","provider_url":"https:\/\/www.healthbenefitstimes.com\/glossary","author_name":"Glossary","author_url":"https:\/\/www.healthbenefitstimes.com\/glossary\/author\/adminglossary\/","title":"Actin - Definition of Actin","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"4k8tlqM5Iq\"><a href=\"https:\/\/www.healthbenefitstimes.com\/glossary\/actin\/\">Actin<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.healthbenefitstimes.com\/glossary\/actin\/embed\/#?secret=4k8tlqM5Iq\" width=\"600\" height=\"338\" title=\"&#8220;Actin&#8221; &#8212; Glossary\" data-secret=\"4k8tlqM5Iq\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.healthbenefitstimes.com\/glossary\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"Essential component of the cell skeleton.A contractile protein of muscle fiber.Actin Along with myosin, actin is one of the two principal contractile proteins in the muscle cell.Protein in muscle that, along with myosin, makes up the contractile elements of muscles.A muscle protein that is responsible for muscle contraction.One of the contractile proteins that make up the sarcomeres of muscle tissue. During contraction, the actin filaments are pulled toward the center of the sarcomere by the action of myosin filaments, and the sarcomere shortens. Actin is also found in the cytoskeleton of many kinds of cells, where it contributes to cell shape and movement. Polymerized actin is known as filamentous actin; the monomeric form of the protein is known as globular actin.Actin, a protein constituent of muscle fibers, collaborates with another protein called myosin to facilitate muscle contractions. Working in tandem, these microscopic actin and myosin filaments slide past each other, resulting in the shortening of muscle fibers. This mechanism is what allows muscles to contract."}