{"id":1919,"date":"2014-05-23T10:38:55","date_gmt":"2014-05-23T09:38:55","guid":{"rendered":"http:\/\/www.agustinbarahona.com\/blog\/?p=1919"},"modified":"2014-05-24T23:29:25","modified_gmt":"2014-05-24T22:29:25","slug":"rosalind-franklin-la-pieza-clave-en-el-engranaje-de-la-doble-helice-del-adn","status":"publish","type":"post","link":"https:\/\/www.agustinbarahona.com\/blog\/rosalind-franklin-la-pieza-clave-en-el-engranaje-de-la-doble-helice-del-adn\/","title":{"rendered":"Rosalind Franklin, la pieza clave en el engranaje de la doble h\u00e9lice del ADN"},"content":{"rendered":"

\"\"<\/p>\n

Mi m\u00e1s absoluto y devoto reconocimiento ante esta grand\u00edsima investigadora.<\/p>\n

Rosalind Franklin, la pieza clave en el engranaje de la doble h\u00e9lice \/ Fotograf\u00edas \/ Multimedia \/ SINC<\/a>.<\/p>\n

Rosalind Franklin, m\u00e1s all\u00e1 de la foto 51 | Naukas<\/a>.<\/p>\n

\n

\u00abRepasando los art\u00edculos originales pueden verse cosas muy interesantes. En el propio art\u00edculo \u00abA Structure for Deoxyribose Nucleic Acid\u00bb que publicaron en Nature<\/em> 171, pp. 737-738, en 1953 ambos, Watson y Cricks, reconocen al final<\/p>\n

\u00abWe have been also stimulated by a knowledge of the general nature of the unpublished experimental results and ideas of Dr. M.H.F. Wilkins, Dr. R.E. Franklin and their co-workers at King’s College, London\u00bb. <\/span><\/em><\/p>\n

Se refer\u00edan a la famosa \u00abImagen 51\u00bb de Franklin generada por difracci\u00f3n de rayos X, base que fundament\u00f3 los indicios que llevaron a la hip\u00f3tesis de la estructura doble helicoidal del ADN, y que Wilkins hab\u00eda mostrado, por lo visto sin permiso de Franklin<\/strong>, a W. y C. En el mismo volumen 171 el mismo d\u00eda –25 de abril– Franklin y Gosling publican en su articulo \u00abMolecular Configuration in Sodium Thymonucleate\u00bb — Nature, 171, pp.740-741–<\/p>\n

\u00abThe phosphate groups lie outside of the structural unit on an helix of diameter about 20 A. The structural unit probably consists of two co-axial molecules which are not equally spaced along the fibre axis, their mutual displacement being such as to account for the variation of observed intensities fo the innermost maxima on the layer lines;…\u00bb. <\/span><\/em><\/p>\n

Unas p\u00e1ginas despu\u00e9s –pp.964-967– hay otro art\u00edculo de W. y C. \u00abGenetical Implications of the structure of Deoxyribonucleic Acid\u00bb, del 30 de mayo, en que contestan especulando c\u00f3mo las bases pareadas de la d\u00f3ble h\u00e9lice permiten la replicaci\u00f3n del ADN. Y en el siguiente n\u00famero de Nature, 172, pp.156-157, del 25 de julio de ese mismo a\u00f1o, \u00abEvidence for 2-Chain Helix in Crystalline Structure of Sodium Deoxyribonucleate\u00bb, responden Franklin y su asistente Gosling detallando las diferencias entre las estructuras A y B de la h\u00e9lice doble del ADN.<\/p>\n

Sin la famosa imagen 51 escamoteada a Franklin probablemente no hubiera podido darse el giro sobre el err\u00f3neo modelo anterior.\u00bb [Agust\u00edn Barahona]<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Mi m\u00e1s absoluto y devoto reconocimiento ante esta grand\u00edsima investigadora. Rosalind Franklin, la pieza clave en el engranaje de la doble h\u00e9lice \/ Fotograf\u00edas \/ Multimedia \/ SINC. Rosalind Franklin, m\u00e1s all\u00e1 de la foto 51 | Naukas. \u00abRepasando los art\u00edculos originales pueden verse cosas muy interesantes. En el propio art\u00edculo \u00abA Structure for Deoxyribose […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[34],"tags":[36,18,60],"class_list":["post-1919","post","type-post","status-publish","format-standard","hentry","category-ciencia","tag-ciencia-2","tag-cultura","tag-rosalind-franklin"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.agustinbarahona.com\/blog\/wp-json\/wp\/v2\/posts\/1919","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.agustinbarahona.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.agustinbarahona.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.agustinbarahona.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.agustinbarahona.com\/blog\/wp-json\/wp\/v2\/comments?post=1919"}],"version-history":[{"count":1,"href":"https:\/\/www.agustinbarahona.com\/blog\/wp-json\/wp\/v2\/posts\/1919\/revisions"}],"predecessor-version":[{"id":1921,"href":"https:\/\/www.agustinbarahona.com\/blog\/wp-json\/wp\/v2\/posts\/1919\/revisions\/1921"}],"wp:attachment":[{"href":"https:\/\/www.agustinbarahona.com\/blog\/wp-json\/wp\/v2\/media?parent=1919"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.agustinbarahona.com\/blog\/wp-json\/wp\/v2\/categories?post=1919"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.agustinbarahona.com\/blog\/wp-json\/wp\/v2\/tags?post=1919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}