{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T08:36:25Z","timestamp":1790066185517,"version":"4.0.1"},"reference-count":41,"publisher":"The Royal Society","issue":"88","license":[{"start":{"date-parts":[[2013,11,6]],"date-time":"2013-11-06T00:00:00Z","timestamp":1383696000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/royalsociety.org\/journals\/ethics-policies\/data-sharing-mining\/"}],"content-domain":{"domain":["royalsocietypublishing.org"],"crossmark-restriction":true},"short-container-title":["J. R. Soc. Interface."],"published-print":{"date-parts":[[2013,11,6]]},"abstract":"<jats:p>\n                    The radical pair model proposes that the avian magnetic compass is based on radical pair processes in the eye, with cryptochrome, a flavoprotein, suggested as receptor molecule. Cryptochrome 1a (Cry1a) is localized at the discs of the outer segments of the UV\/violet cones of European robins and chickens. Here, we show the activation characteristics of a bird cryptochrome\n                    <jats:italic>in vivo<\/jats:italic>\n                    under natural conditions. We exposed chickens for 30 min to different light regimes and analysed the amount of Cry1a labelled with an antiserum against an epitope at the C-terminus of this protein. The staining after exposure to sunlight and to darkness indicated that the antiserum labels only an illuminated, activated form of Cry1a. Exposure to narrow-bandwidth lights of various wavelengths revealed activated Cry1a at UV, blue and turquoise light. With green and yellow, the amount of activated Cry1a was reduced, and with red, as in the dark, no activated Cry1a was labelled. Activated Cry1a is thus found at all those wavelengths at which birds can orient using their magnetic inclination compass, supporting the role of Cry1a as receptor molecule. The observation that activated Cry1a and well-oriented behaviour occur at 565 nm green light, a wavelength not absorbed by the fully oxidized form of cryptochrome, suggests that a state other than the previously suggested Trp\n                    <jats:sup>\u2022<\/jats:sup>\n                    \/FAD\n                    <jats:sup>\u2022<\/jats:sup>\n                    radical pair formed during photoreduction is crucial for detecting magnetic directions.\n                  <\/jats:p>","DOI":"10.1098\/rsif.2013.0638","type":"journal-article","created":{"date-parts":[[2013,8,21]],"date-time":"2013-08-21T05:13:36Z","timestamp":1377062016000},"page":"20130638","update-policy":"https:\/\/doi.org\/10.1098\/crossmark-policy","source":"Crossref","is-referenced-by-count":101,"title":["Magnetoreception: activated cryptochrome 1a concurs with magnetic orientation in birds"],"prefix":"10.1098","volume":"10","author":[{"given":"Christine","family":"Nie\u00dfner","sequence":"first","affiliation":[{"name":"FB Biowissenschaften, J.W. Goethe-Universit\u00e4t Frankfurt, Siesmayerstrasse 70, 60054 Frankfurt am Main, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Susanne","family":"Denzau","sequence":"additional","affiliation":[{"name":"FB Biowissenschaften, J.W. Goethe-Universit\u00e4t Frankfurt, Siesmayerstrasse 70, 60054 Frankfurt am Main, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katrin","family":"Stapput","sequence":"additional","affiliation":[{"name":"FB Biowissenschaften, J.W. Goethe-Universit\u00e4t Frankfurt, Siesmayerstrasse 70, 60054 Frankfurt am Main, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Margaret","family":"Ahmad","sequence":"additional","affiliation":[{"name":"Universit\u00e9 Pierre et Marie Curie, Casier 156, 4 Place Jussieu, 75005 Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Leo","family":"Peichl","sequence":"additional","affiliation":[{"name":"Max Planck Institut f\u00fcr Hirnforschung, Max-von-Laue-Strasse 4, 60438 Frankfurt am Main, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wolfgang","family":"Wiltschko","sequence":"additional","affiliation":[{"name":"FB Biowissenschaften, J.W. Goethe-Universit\u00e4t Frankfurt, Siesmayerstrasse 70, 60054 Frankfurt am Main, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roswitha","family":"Wiltschko","sequence":"additional","affiliation":[{"name":"FB Biowissenschaften, J.W. Goethe-Universit\u00e4t Frankfurt, Siesmayerstrasse 70, 60054 Frankfurt am Main, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"175","published-online":{"date-parts":[[2013,11,6]]},"reference":[{"key":"e_1_3_4_2_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1439-0310.1968.tb00028.x"},{"key":"e_1_3_4_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.cub.2005.08.017"},{"key":"e_1_3_4_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.proche.2011.08.035"},{"key":"e_1_3_4_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0006-3495(00)76629-X"},{"key":"e_1_3_4_6_2","doi-asserted-by":"publisher","DOI":"10.1038\/nature02534"},{"key":"e_1_3_4_7_2","doi-asserted-by":"publisher","DOI":"10.1038\/nature00958"},{"key":"e_1_3_4_8_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0000937"},{"key":"e_1_3_4_9_2","doi-asserted-by":"publisher","DOI":"10.1038\/nature08528"},{"key":"e_1_3_4_10_2","doi-asserted-by":"publisher","DOI":"10.1098\/rsif.2009.0367.focus"},{"key":"e_1_3_4_11_2","doi-asserted-by":"publisher","DOI":"10.1242\/jeb.004853"},{"key":"e_1_3_4_12_2","doi-asserted-by":"publisher","DOI":"10.1038\/nsb933"},{"key":"e_1_3_4_13_2","doi-asserted-by":"publisher","DOI":"10.1097\/00001756-200212030-00016"},{"key":"e_1_3_4_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0014-5793(02)02276-7"},{"key":"e_1_3_4_15_2","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M112.395731"},{"key":"e_1_3_4_16_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00114-004-0578-9"},{"key":"e_1_3_4_17_2","doi-asserted-by":"publisher","DOI":"10.1098\/rsif.2009.0411.focus"},{"key":"e_1_3_4_18_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0020091"},{"key":"e_1_3_4_19_2","doi-asserted-by":"publisher","DOI":"10.1021\/bi047545g"},{"key":"e_1_3_4_20_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmb.2011.08.031"},{"key":"e_1_3_4_21_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1017093108"},{"key":"e_1_3_4_22_2","doi-asserted-by":"publisher","DOI":"10.1242\/jeb.088815"},{"key":"e_1_3_4_23_2","doi-asserted-by":"publisher","DOI":"10.1146\/annurev-arplant-042110-103759"},{"key":"e_1_3_4_24_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0031867"},{"key":"e_1_3_4_25_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0001106"},{"key":"e_1_3_4_26_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pbio.0060160"},{"key":"e_1_3_4_27_2","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M111.228940"},{"key":"e_1_3_4_28_2","doi-asserted-by":"publisher","DOI":"10.1021\/cr0204348"},{"key":"e_1_3_4_29_2","doi-asserted-by":"publisher","DOI":"10.1101\/sqb.2007.72.015"},{"key":"e_1_3_4_30_2","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M608872200"},{"key":"e_1_3_4_31_2","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M700616200"},{"key":"e_1_3_4_32_2","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M609842200"},{"key":"e_1_3_4_33_2","doi-asserted-by":"publisher","DOI":"10.1105\/tpc.112.098947"},{"key":"e_1_3_4_34_2","doi-asserted-by":"publisher","DOI":"10.1007\/s003590050327"},{"key":"e_1_3_4_35_2","doi-asserted-by":"publisher","DOI":"10.1080\/08927014.1992.9525348"},{"key":"e_1_3_4_36_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1118959109"},{"key":"e_1_3_4_37_2","doi-asserted-by":"publisher","DOI":"10.1098\/rsif.2012.0374"},{"key":"e_1_3_4_38_2","doi-asserted-by":"publisher","DOI":"10.1021\/jp209508y"},{"key":"e_1_3_4_39_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.bpj.2012.01.007"},{"key":"e_1_3_4_40_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.bpj.2008.11.072"},{"key":"e_1_3_4_41_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.cplett.2009.08.051"},{"key":"e_1_3_4_42_2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.109.220501"}],"container-title":["Journal of The Royal Society Interface"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/royalsocietypublishing.org\/doi\/pdf\/10.1098\/rsif.2013.0638","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/royalsocietypublishing.org\/doi\/full-xml\/10.1098\/rsif.2013.0638","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/royalsocietypublishing.org\/doi\/pdf\/10.1098\/rsif.2013.0638","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T21:20:05Z","timestamp":1778620805000},"score":1,"resource":{"primary":{"URL":"http:\/\/royalsocietypublishing.org\/rsif\/article\/64372"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,11,6]]},"references-count":41,"journal-issue":{"issue":"88","published-print":{"date-parts":[[2013,11,6]]}},"alternative-id":["10.1098\/rsif.2013.0638"],"URL":"https:\/\/doi.org\/10.1098\/rsif.2013.0638","relation":{},"ISSN":["1742-5689","1742-5662"],"issn-type":[{"value":"1742-5689","type":"print"},{"value":"1742-5662","type":"electronic"}],"subject":[],"published":{"date-parts":[[2013,11,6]]},"assertion":[{"value":"2013-07-16","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2013-07-31","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2013-11-06","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}