{"id":5006106,"date":"2012-05-16T21:39:12","date_gmt":"2012-05-16T19:39:12","guid":{"rendered":"https:\/\/criticalbiomass.blog.hu\/2012\/05\/16\/budapest_science_meetup_majus_2"},"modified":"2012-05-16T21:39:12","modified_gmt":"2012-05-16T19:39:12","slug":"budapest_science_meetup_majus_2","status":"publish","type":"post","link":"https:\/\/criticalbiomass.hu\/?p=5006106","title":{"rendered":"Budapest Science Meetup &#8211; M\u00e1jus"},"content":{"rendered":"<p><img class=\"blossom-image-align-left\" src=\"http:\/\/criticalbiomass.blog.hu\/media\/image\/201205\/bpsm.png\" alt=\"\" \/><\/p>\n<p>Holnap este h\u00e9tkor ism\u00e9t v\u00e1runk mindenkit a <a href=\"http:\/\/www.fogashaz.hu\/\">Fogash\u00e1zban<\/a>. A program:<\/p>\n<p><strong id=\"internal-source-marker_0.9831543320324272\" style=\"font-family: Times; font-size: medium;\"><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; vertical-align: baseline; white-space: pre-wrap;\">Az er\u0151kifejt\u00e9s kulcsa: a miozin aktiv\u00e1ci\u00f3s hurok<\/span><br \/><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; font-style: italic; vertical-align: baseline; white-space: pre-wrap;\">V\u00e1rkuti Bogl\u00e1rka &#8211; ELTE, Biok\u00e9miai Tansz\u00e9k<\/span><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\"> (<\/span><a href=\"http:\/\/www.malnalab.hu\/\"><span style=\"font-size: 13px; font-family: Arial; color: #1155cc; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\">http:\/\/www.malnalab.hu<\/span><\/a><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\">)<\/span><br \/><strong id=\"internal-source-marker_0.9831543320324272\" style=\"font-family: Times; font-size: medium;\"><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\"> <\/span><\/strong><\/strong><\/p>\n<p><strong id=\"internal-source-marker_0.9831543320324272\" style=\"font-family: Times; font-size: medium;\"><strong id=\"internal-source-marker_0.9831543320324272\" style=\"font-family: Times; font-size: medium;\"><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\">A miozinok minden eukari\u00f3ta sejtben megtal\u00e1lhat\u00f3 motor feh\u00e9rj\u00e9k, n\u00e9pes csal\u00e1djuk a legk\u00fcl\u00f6nb\u00f6z\u0151bb, a sejt t\u00fal\u00e9l\u00e9s\u00e9hez is n\u00e9lk\u00fcl\u00f6zhetetlen folyamatokban vesz r\u00e9szt. Hab\u00e1r szerep\u00fck rendk\u00edv\u00fcl elt\u00e9r\u0151, alapvet\u0151 szerkezet\u00fck \u00e9s m\u0171k\u00f6d\u00e9si mechanizmusuk igen hasonl\u00f3. Minden miozint saj\u00e1t k\u00f6t\u0151feh\u00e9rj\u00e9je, az aktin aktiv\u00e1l, legyen sz\u00f3 ak\u00e1r az izom \u00f6sszeh\u00faz\u00f3d\u00e1s\u00e1r\u00f3l, a sejten bel\u00fcli transzportr\u00f3l vagy a sejtoszt\u00f3d\u00e1sr\u00f3l. Ha ez nem t\u00f6rt\u00e9nik meg, a miozin enzim elveszti hat\u00e9konys\u00e1g\u00e1t, \u00e9s csak igen gyenge alap aktivit\u00e1ssal m\u0171k\u00f6dik. Az aktiv\u00e1l\u00e1s, er\u0151gener\u00e1l\u00e1s folyamata nem ismert, azonban csoportunk fedezte fel azt a miozinban l\u00e9v\u0151 szerkezeti elemet, mely az aktiv\u00e1ci\u00f3 kezdeti l\u00e9p\u00e9s\u00e9\u00e9rt felel\u0151s. <\/span><\/strong><\/strong><\/p>\n<p><strong id=\"internal-source-marker_0.9831543320324272\" style=\"font-family: Times; font-size: medium;\"><\/p>\n<p style=\"text-align: justify; margin-top: 0pt; margin-bottom: 0pt;\" dir=\"ltr\"><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\">Molekul\u00e1ris modellez\u00e9ssel \u00e9s biok\u00e9miai m\u00f3dszerekkel bizony\u00edtottuk, hogy ha ezt a szerkezeti elemet &#8211; melyet aktiv\u00e1ci\u00f3s huroknak nevezt\u00fcnk el \u2013 mut\u00e1ci\u00f3val elrontjuk, akkor a miozin aktiv\u00e1ci\u00f3ja teljesen elmarad. L\u00e9trehoztunk olyan <\/span><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; font-style: italic; vertical-align: baseline; white-space: pre-wrap;\">C. elegans<\/span><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\"> modell\u00e1llat t\u00f6rzset, melyben szint\u00e9n elrontottuk az aktiv\u00e1ci\u00f3s hurkot, hogy l\u00e1ssuk az aktiv\u00e1ci\u00f3 hi\u00e1ny\u00e1nak \u00e9l\u0151 rendszerben megjelen\u0151 hat\u00e1s\u00e1t. Az \u00edgy l\u00e9trehozott \u00e1llatok lassabbak \u00e9s gyeng\u00e9bbek voltak, er\u0151kifejt\u00e9s\u00fck kisebb volt vad t\u00edpus\u00fa t\u00e1rsaik\u00e9n\u00e1l. Az aktiv\u00e1ci\u00f3s hurok a miozin aktiv\u00e1ci\u00f3j\u00e1nak kulcs szerkezeti eleme, megismer\u00e9s\u00e9vel egy l\u00e9p\u00e9ssel k\u00f6zelebb ker\u00fclhet\u00fcnk az er\u0151gener\u00e1l\u00e1s mechanizmus\u00e1nak meg\u00e9rt\u00e9s\u00e9hez.<\/span><\/p>\n<p><\/strong><\/p>\n<p><!--more--><\/p>\n<p><img class=\"blossom-image-align-left\" src=\"http:\/\/criticalbiomass.blog.hu\/media\/image\/201205\/bpsm.png\" alt=\"\" \/><\/p>\n<p>Holnap este h\u00e9tkor ism\u00e9t v\u00e1runk mindenkit a <a href=\"http:\/\/www.fogashaz.hu\/\">Fogash\u00e1zban<\/a>. A program:<\/p>\n<p><strong id=\"internal-source-marker_0.9831543320324272\" style=\"font-family: Times; font-size: medium;\"><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; vertical-align: baseline; white-space: pre-wrap;\">Az er\u0151kifejt\u00e9s kulcsa: a miozin aktiv\u00e1ci\u00f3s hurok<\/span><br \/><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; font-style: italic; vertical-align: baseline; white-space: pre-wrap;\">V\u00e1rkuti Bogl\u00e1rka &#8211; ELTE, Biok\u00e9miai Tansz\u00e9k<\/span><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\"> (<\/span><a href=\"http:\/\/www.malnalab.hu\/\"><span style=\"font-size: 13px; font-family: Arial; color: #1155cc; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\">http:\/\/www.malnalab.hu<\/span><\/a><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\">)<\/span><br \/><strong id=\"internal-source-marker_0.9831543320324272\" style=\"font-family: Times; font-size: medium;\"><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\"> <\/span><\/strong><\/strong><\/p>\n<p><strong id=\"internal-source-marker_0.9831543320324272\" style=\"font-family: Times; font-size: medium;\"><strong id=\"internal-source-marker_0.9831543320324272\" style=\"font-family: Times; font-size: medium;\"><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\">A miozinok minden eukari\u00f3ta sejtben megtal\u00e1lhat\u00f3 motor feh\u00e9rj\u00e9k, n\u00e9pes csal\u00e1djuk a legk\u00fcl\u00f6nb\u00f6z\u0151bb, a sejt t\u00fal\u00e9l\u00e9s\u00e9hez is n\u00e9lk\u00fcl\u00f6zhetetlen folyamatokban vesz r\u00e9szt. Hab\u00e1r szerep\u00fck rendk\u00edv\u00fcl elt\u00e9r\u0151, alapvet\u0151 szerkezet\u00fck \u00e9s m\u0171k\u00f6d\u00e9si mechanizmusuk igen hasonl\u00f3. Minden miozint saj\u00e1t k\u00f6t\u0151feh\u00e9rj\u00e9je, az aktin aktiv\u00e1l, legyen sz\u00f3 ak\u00e1r az izom \u00f6sszeh\u00faz\u00f3d\u00e1s\u00e1r\u00f3l, a sejten bel\u00fcli transzportr\u00f3l vagy a sejtoszt\u00f3d\u00e1sr\u00f3l. Ha ez nem t\u00f6rt\u00e9nik meg, a miozin enzim elveszti hat\u00e9konys\u00e1g\u00e1t, \u00e9s csak igen gyenge alap aktivit\u00e1ssal m\u0171k\u00f6dik. Az aktiv\u00e1l\u00e1s, er\u0151gener\u00e1l\u00e1s folyamata nem ismert, azonban csoportunk fedezte fel azt a miozinban l\u00e9v\u0151 szerkezeti elemet, mely az aktiv\u00e1ci\u00f3 kezdeti l\u00e9p\u00e9s\u00e9\u00e9rt felel\u0151s. <\/span><\/strong><\/strong><\/p>\n<p><strong id=\"internal-source-marker_0.9831543320324272\" style=\"font-family: Times; font-size: medium;\"><\/p>\n<p style=\"text-align: justify; margin-top: 0pt; margin-bottom: 0pt;\" dir=\"ltr\"><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\">Molekul\u00e1ris modellez\u00e9ssel \u00e9s biok\u00e9miai m\u00f3dszerekkel bizony\u00edtottuk, hogy ha ezt a szerkezeti elemet &#8211; melyet aktiv\u00e1ci\u00f3s huroknak nevezt\u00fcnk el \u2013 mut\u00e1ci\u00f3val elrontjuk, akkor a miozin aktiv\u00e1ci\u00f3ja teljesen elmarad. L\u00e9trehoztunk olyan <\/span><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; font-style: italic; vertical-align: baseline; white-space: pre-wrap;\">C. elegans<\/span><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\"> modell\u00e1llat t\u00f6rzset, melyben szint\u00e9n elrontottuk az aktiv\u00e1ci\u00f3s hurkot, hogy l\u00e1ssuk az aktiv\u00e1ci\u00f3 hi\u00e1ny\u00e1nak \u00e9l\u0151 rendszerben megjelen\u0151 hat\u00e1s\u00e1t. Az \u00edgy l\u00e9trehozott \u00e1llatok lassabbak \u00e9s gyeng\u00e9bbek voltak, er\u0151kifejt\u00e9s\u00fck kisebb volt vad t\u00edpus\u00fa t\u00e1rsaik\u00e9n\u00e1l. Az aktiv\u00e1ci\u00f3s hurok a miozin aktiv\u00e1ci\u00f3j\u00e1nak kulcs szerkezeti eleme, megismer\u00e9s\u00e9vel egy l\u00e9p\u00e9ssel k\u00f6zelebb ker\u00fclhet\u00fcnk az er\u0151gener\u00e1l\u00e1s mechanizmus\u00e1nak meg\u00e9rt\u00e9s\u00e9hez.<\/span><\/p>\n<p><\/strong><\/p>\n<p style=\"text-align: justify; margin-top: 0pt; margin-bottom: 0pt;\" dir=\"ltr\"><strong><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; vertical-align: baseline; white-space: pre-wrap;\">Az immunit\u00e1s id\u0151skori hanyatl\u00e1sa &#8211; vizsg\u00e1latok <\/span><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-style: italic; vertical-align: baseline; white-space: pre-wrap;\">C. elegans<\/span><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; vertical-align: baseline; white-space: pre-wrap;\"> fon\u00e1lf\u00e9regben<\/span><\/strong><\/p>\n<p style=\"text-align: justify; margin-top: 0pt; margin-bottom: 0pt;\" dir=\"ltr\"><span style=\"font-size: 13px; font-family: Arial; background-color: transparent; font-weight: normal; font-style: italic; vertical-align: baseline; white-space: pre-wrap;\">Papp Dia &#8211; ELTE, Genetikai Tansz\u00e9k<\/span><\/p>\n<p style=\"text-align: justify; margin-top: 0pt; margin-bottom: 0pt;\" dir=\"ltr\"><span style=\"font-size: 13px; font-family: Arial; background-color: transparent; font-weight: normal; font-style: italic; vertical-align: baseline; white-space: pre-wrap;\"><br \/><\/span><\/p>\n<p style=\"text-align: justify; margin-top: 0pt; margin-bottom: 0pt;\" dir=\"ltr\"><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\">Szervezet\u00fcnket a k\u00e1ros k\u00f3rokoz\u00f3kkal pl. bakt\u00e9riumokkal, v\u00edrusokkal szemben az immunrendszer v\u00e9di. Az idegen behatol\u00f3k mellett az immunrendszer\u00fcnk k\u00e9pes felismerni \u00e9s elpuszt\u00edtani a tumoros sejteket is fiatal korban. \u00d6reged\u00e9s sor\u00e1n viszont hanyatlani kezd ez a prec\u00edzen szab\u00e1lyozott, hat\u00e9konyan m\u0171k\u00f6d\u0151 rendszer, \u00edgy id\u0151s korban megn\u0151 a fert\u0151z\u00e9sekkel szembeni \u00e9rz\u00e9kenys\u00e9g, illetve a daganatok kialakul\u00e1s\u00e1nak es\u00e9lye is. Sz\u00e1mos kutat\u00f3csoport dolgozik azon, hogy felt\u00e1rja az immunit\u00e1s id\u0151skori hanyatl\u00e1s\u00e1nak okait. El\u0151ad\u00e1somban ebb\u0151l szeretn\u00e9k \u00edzel\u00edt\u0151t adni, seg\u00edts\u00e9g\u00fcl h\u00edvva a <\/span><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; font-style: italic; vertical-align: baseline; white-space: pre-wrap;\">C. elegans<\/span><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\"> fon\u00e1lf\u00e9rget, amely a genetikai kutat\u00e1sok kedvelt modell\u00e1llata.<\/span><\/p>\n<p style=\"text-align: justify; margin-top: 0pt; margin-bottom: 0pt;\" dir=\"ltr\"><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\"><br \/><\/span><\/p>\n<p style=\"text-align: justify; margin-top: 0pt; margin-bottom: 0pt;\" dir=\"ltr\"><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; vertical-align: baseline; white-space: pre-wrap;\"><strong>Melyik tant\u00e1rgyakat ut\u00e1ltad a legjobban az iskol\u00e1ban?<\/strong><\/span><\/p>\n<p style=\"text-align: justify; margin-top: 0pt; margin-bottom: 0pt;\" dir=\"ltr\"><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; font-style: italic; vertical-align: baseline; white-space: pre-wrap;\">N\u00e1dori Gergely<\/span><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\"> <\/span><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; font-style: italic; vertical-align: baseline; white-space: pre-wrap;\">&#8211; Alternat\u00edv K\u00f6zgazdas\u00e1gi Gimn\u00e1zium<\/span><\/p>\n<p style=\"text-align: justify; margin-top: 0pt; margin-bottom: 0pt;\" dir=\"ltr\"><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; font-style: italic; vertical-align: baseline; white-space: pre-wrap;\"><br \/><\/span><\/p>\n<p style=\"text-align: justify; margin-top: 0pt; margin-bottom: 0pt;\" dir=\"ltr\"><span style=\"font-size: 13px; font-family: Arial; color: #222222; background-color: transparent; font-weight: normal; vertical-align: baseline; white-space: pre-wrap;\">V\u00e1ls\u00e1gban van-e a term\u00e9szettudom\u00e1nyok tan\u00edt\u00e1sa? Milyen k\u00eds\u00e9rletek vannak term\u00e9szettudom\u00e1nyos oktat\u00e1s meg\u00faj\u00edt\u00e1s\u00e1ra \u00e9s mi ezek empirikus tapasztalata?<\/span><\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Holnap este h\u00e9tkor ism\u00e9t v\u00e1runk mindenkit a Fogash\u00e1zban. A program: Az er\u0151kifejt\u00e9s kulcsa: a miozin aktiv\u00e1ci\u00f3s hurokV\u00e1rkuti Bogl\u00e1rka &#8211; ELTE, Biok\u00e9miai Tansz\u00e9k (http:\/\/www.malnalab.hu) A miozinok minden eukari\u00f3ta sejtben megtal\u00e1lhat\u00f3 motor feh\u00e9rj\u00e9k, n\u00e9pes csal\u00e1djuk a legk\u00fcl\u00f6nb\u00f6z\u0151bb, a sejt t\u00fal\u00e9l\u00e9s\u00e9hez is n\u00e9lk\u00fcl\u00f6zhetetlen &hellip; <a href=\"https:\/\/criticalbiomass.hu\/?p=5006106\">Egy kattint\u00e1s ide a folytat\u00e1shoz&#8230;. <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[10],"_links":{"self":[{"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=\/wp\/v2\/posts\/5006106"}],"collection":[{"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5006106"}],"version-history":[{"count":0,"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=\/wp\/v2\/posts\/5006106\/revisions"}],"wp:attachment":[{"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5006106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5006106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/criticalbiomass.hu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5006106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}