PMID- 11162530 OWN - NLM STAT- MEDLINE DCOM- 20010322 LR - 20061115 IS - 0006-291X (Print) IS - 0006-291X (Linking) VI - 280 IP - 1 DP - 2001 Jan 12 TI - Molecular cloning of a novel human gene on chromosome 4p11 by immunoscreening of an ovarian carcinoma cDNA library. PG - 401-6 AB - In our efforts to identify immunoreactive antigens in ovarian cancer, we used the method of immunoscreening of an ovarian carcinoma cDNA expression library with ascites fluid from ovarian cancer patients. Among many positive clones, one was found to contain partial sequence of a novel gene. By searching expressed sequence tags (ESTs) and human genome project databases as well as by screening other cDNA libraries and by RT-PCR strategies, we were able to obtain the full-length cDNA sequence (1.4 kb) and establish the genomic organization of this new gene. We also identified two alternatively spliced forms, encoding for slightly different proteins. The longer form (1.4 kb) is predicted to encode for a 27.6 kDa protein of 245 amino acids. The shorter form (1.3 kb) encodes for a truncated protein of 20.7 kDa and 208 amino acids. These proteins are not significantly homologous to any known protein in the GenBank database. This gene is composed of nine exons and eight introns. By fluorescence in situ hybridization (FISH), it was mapped to chromosome 4p11. This gene is highly expressed in many tissues, including testis, brain, placenta, ovary, prostate, and mammary gland. The high level expression of the shorter form is restricted to the central nervous system, including brain, cerebellum, and spinal cord, suggesting that this form may have a unique function in the central nervous system. CI - Copyright 2001 Academic Press. FAU - Luo, L Y AU - Luo LY AD - Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, M5G 1X5, Canada. FAU - Soosaipillai, A AU - Soosaipillai A FAU - Diamandis, E P AU - Diamandis EP LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Biochem Biophys Res Commun JT - Biochemical and biophysical research communications JID - 0372516 RN - 0 (Antigens, Neoplasm) RN - 0 (DNA, Complementary) SB - IM MH - Alternative Splicing MH - Amino Acid Sequence MH - Antigens, Neoplasm/chemistry/*genetics MH - Base Sequence MH - Brain/metabolism MH - Chromosome Mapping MH - *Chromosomes, Human, Pair 4 MH - DNA, Complementary MH - Exons MH - Expressed Sequence Tags MH - Female MH - *Gene Library MH - Human Genome Project MH - Humans MH - In Situ Hybridization, Fluorescence MH - Introns MH - Karyotyping MH - Male MH - Molecular Sequence Data MH - Open Reading Frames MH - Organ Specificity MH - Ovarian Neoplasms/*genetics MH - Reverse Transcriptase Polymerase Chain Reaction EDAT- 2001/02/13 11:00 MHDA- 2001/03/27 10:01 CRDT- 2001/02/13 11:00 PHST- 2001/02/13 11:00 [pubmed] PHST- 2001/03/27 10:01 [medline] PHST- 2001/02/13 11:00 [entrez] AID - S0006-291X(00)94126-3 [pii] AID - 10.1006/bbrc.2000.4126 [doi] PST - ppublish SO - Biochem Biophys Res Commun. 2001 Jan 12;280(1):401-6. doi: 10.1006/bbrc.2000.4126.