{"corpus_id":24268900,"paper_sha":"6d8ec5042ab4796c17b44ec3badf3a121feb12bc","doi":"10.1016/s0021-9258(18)35849-6","arxiv_id":null,"pmid":1447226,"pmcid":null,"mag_id":6357302,"dblp_id":null,"acl_id":null,"title":"Sphingolipid transport in mitotic HeLa cells.","year":1992,"publication_date":"1992-12-05","venue":"Journal of Biological Chemistry","journal":{"name":"The Journal of biological chemistry","pages":"\n          24906-11\n        ","volume":"267 34"},"journal_issn":null,"journal_title":null,"publication_types":["JournalArticle"],"pubmed_pub_types":["Journal Article"],"s2_fields_of_study":["Biology","Medicine"],"reference_count":0,"citation_count":60,"influential_citation_count":0,"is_open_access":false,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":[{"d":"Biological Transport","mj":false,"ui":"D001692"},{"d":"Carbohydrate Sequence","mj":false,"ui":"D002240"},{"d":"Ceramides","mj":false,"qs":[{"q":"biosynthesis","mj":true,"ui":"Q000096"}],"ui":"D002518"},{"d":"Endoplasmic Reticulum","mj":false,"qs":[{"q":"metabolism","mj":false,"ui":"Q000378"}],"ui":"D004721"},{"d":"Gangliosides","mj":false,"qs":[{"q":"biosynthesis","mj":true,"ui":"Q000096"}],"ui":"D005732"},{"d":"Glycosphingolipids","mj":false,"qs":[{"q":"biosynthesis","mj":true,"ui":"Q000096"}],"ui":"D006028"},{"d":"Golgi Apparatus","mj":false,"qs":[{"q":"metabolism","mj":false,"ui":"Q000378"}],"ui":"D006056"},{"d":"HeLa Cells","mj":false,"ui":"D006367"},{"d":"Humans","mj":false,"ui":"D006801"},{"d":"Interphase","mj":false,"ui":"D007399"},{"d":"Kinetics","mj":false,"ui":"D007700"},{"d":"Mitosis","mj":false,"qs":[{"q":"physiology","mj":true,"ui":"Q000502"}],"ui":"D008938"},{"d":"Molecular Sequence Data","mj":false,"ui":"D008969"},{"d":"Nocodazole","mj":false,"qs":[{"q":"pharmacology","mj":false,"ui":"Q000494"}],"ui":"D015739"},{"d":"Serine","mj":false,"qs":[{"q":"metabolism","mj":false,"ui":"Q000378"}],"ui":"D012694"},{"d":"Sphingolipids","mj":false,"qs":[{"q":"metabolism","mj":true,"ui":"Q000378"}],"ui":"D013107"},{"d":"Tritium","mj":false,"ui":"D014316"}],"chemicals":[{"n":"Ceramides","ui":"D002518","reg":"0"},{"n":"Gangliosides","ui":"D005732","reg":"0"},{"n":"Glycosphingolipids","ui":"D006028","reg":"0"},{"n":"Sphingolipids","ui":"D013107","reg":"0"},{"n":"Tritium","ui":"D014316","reg":"10028-17-8"},{"n":"Serine","ui":"D012694","reg":"452VLY9402"},{"n":"Nocodazole","ui":"D015739","reg":"SH1WY3R615"}],"comments_corrections":null,"source_flags":5,"s2_open_access_pdf_url":null,"s2_open_access_landing_url":null,"s2_open_access_license":null,"s2_open_access_status":null,"pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"Mitotic and interphase HeLa cells were labeled with [3H]serine. Ceramide and its derivatives, lactosylceramide and sphingomyelin, were biosynthetically labeled under both conditions. Only in the absence of nocodazole, as the cells entered telophase, was an additional glycosphingolipid synthesized which was identified as GA2 (GalNAc(beta 1,4)Gal(beta 1,4)Glc(beta 1,1)Cer). Ceramide, the basic sphingolipid precursor, is synthesized in the endoplasmic reticulum, whereas its immediate derivatives are synthesized in early Golgi compartments. Transport of newly synthesized proteins from the endoplasmic reticulum to the Golgi is inhibited in mitotic cells while ceramide acquires early Golgi modifications under the same conditions, suggesting that ceramide can be delivered to the Golgi by a different route. Since GA2 is synthesized in late Golgi, its absence in mitotic cells strongly argues for an in vivo inhibition of intra-Golgi transport, an observation with important implications for the mechanism of Golgi division.","claims":[{"public_id":"cl_fe005ecf75ab741bda9a1019d785a581","status":"active","text":"An additional glycosphingolipid, GA2 (GalNAc(beta 1,4)Gal(beta 1,4)Glc(beta 1,1)Cer), was synthesized only in the absence of nocodazole as cells entered telophase.","confidence":0.9,"contributors":[{"id":32,"public_id":"7c402c1b98","public_label":"뀨 (7c402c1b98)","roles":["extraction"],"url":"https://sah.borca.ai/u/7c402c1b98"},{"id":127,"public_id":"yy3835ars5","public_label":"Anonymous (yy3835ars5)","roles":["review"],"url":"https://sah.borca.ai/u/yy3835ars5"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous 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cells argues for an in vivo inhibition of intra-Golgi transport, with implications for the mechanism of Golgi division.","confidence":0.8,"contributors":[{"id":32,"public_id":"7c402c1b98","public_label":"뀨 (7c402c1b98)","roles":["extraction"],"url":"https://sah.borca.ai/u/7c402c1b98"},{"id":127,"public_id":"yy3835ars5","public_label":"Anonymous (yy3835ars5)","roles":["review"],"url":"https://sah.borca.ai/u/yy3835ars5"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_ba32f0f51022ce1be0c09a198c8eb4ec"},{"public_id":"cl_e1be5f75bf466c18b43edd8c1460150b","status":"active","text":"Transport of newly synthesized proteins from the endoplasmic reticulum to the Golgi is inhibited in mitotic cells, but ceramide acquires early Golgi modifications under the same conditions, suggesting ceramide can be delivered to the Golgi by a different 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