{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,21]],"date-time":"2026-03-21T20:26:32Z","timestamp":1774124792393,"version":"3.50.1"},"reference-count":29,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2006,7,17]],"date-time":"2006-07-17T00:00:00Z","timestamp":1153094400000},"content-version":"vor","delay-in-days":4490,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Intl Journal of Cancer"],"published-print":{"date-parts":[[1994,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>MAb Kl recognizes a cell\u2010surface glycoprotein (MW \u223c40 kDa) present in ovarian carcinomas, malignant mesotheliomas, squamous\u2010cell carcinomas and normal mesothelial cells. In this study, expression screening was used to isolate cDNA clones encoding an antigen recognized by MAb 0Kl from a cDNA library made from a human ovarian carcinoma cell line (OVCAR\u20103). Subsequently, other clones were isolated by DNA hybridization using a cDNA probe derived from one of the initial clones. The sequence of all the clones was similar. The longest cDNA contains 2,444 base pairs, and encodes a polypeptide of 263 amino acids with a calculated molecular weight of 30,511 daltons. The nudeotide sequence and deduced ami no\u2010acid sequence of the protein show no homology to other sequences in current data bases. <jats:italic>In vitro<\/jats:italic> translation of RNA transcripts from the cDNA inserts yielded polypeptides of 29 and 30 kDa. Similar\u2010sized proteins were obtained upon expression of the cDNA in Escherich'm coti, and these proteins were reactive with MAb Kl. The protein(s) expressed in E. coli were purified and used to make rabbit or mouse anttsera. These antisera reacted strongly with a soluble cytosolk protein in OVCAR\u20103 cells, but not with the membrane\u2010bound antigen. Soluble cytosolk proteins of a similar size, recognized with MAb Kl, were found in OVCAR\u20103 and N87 (gastric cancer) cells but not in 10 other cancer cell lines. These data indicate that the cloned cDNA encodes a cytosolk protein that reacted with MAb Kl. This soluble protein is expressed only in cells containing the CAKI surface glvcoprotein, suggesting that the 2 proteins could be structurally related. \u00a9 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/ijc.2910570117","type":"journal-article","created":{"date-parts":[[2007,2,20]],"date-time":"2007-02-20T00:10:03Z","timestamp":1171930203000},"page":"90-97","source":"Crossref","is-referenced-by-count":42,"title":["Molecular cloning and expression of a cDNA encoding a protein detected by the ki antibody from an ovarian carcinoma (OVCAR\u20103) cell line"],"prefix":"10.1002","volume":"57","author":[{"given":"Kai","family":"Chang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ira","family":"Pastan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2006,7,17]]},"reference":[{"key":"e_1_2_1_1_1","first-page":"370","article-title":"Large\u2010scale subcloning of bacterio\u2010phage \u03bb ZAP clones","volume":"12","author":"Arcot S. 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G.","year":"1992","journal-title":"Cancer Res."},{"key":"e_1_2_1_15_1","doi-asserted-by":"publisher","DOI":"10.1093\/nar\/15.20.8125"},{"key":"e_1_2_1_16_1","first-page":"713","article-title":"Purification and characterization of carcinoembryonic antigen\u2010related antigens in normal adult feces","volume":"41","author":"Kuroki M.","year":"1981","journal-title":"Cancer Res."},{"key":"e_1_2_1_17_1","doi-asserted-by":"publisher","DOI":"10.1177\/37.1.2461982"},{"key":"e_1_2_1_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/0022-2836(82)90515-0"},{"key":"e_1_2_1_19_1","doi-asserted-by":"publisher","DOI":"10.1101\/gad.4.1.1"},{"key":"e_1_2_1_20_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.3276003"},{"key":"e_1_2_1_21_1","first-page":"6741","article-title":"Mouse monoclonal antibodies to human epithelial differentiation antigens expressed on the surface of ovarian carcinoma ascites cells","volume":"47","author":"Mattes M. 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