title: Cloning and characterization of a novel gene EC97 associated with human esophageal squamous cell carcinoma.
abstract: We report on the cloning and characterization of a novel gene EC97 which is associated with human esophageal squamous cell carcinoma (ESCC). A fragment of expressed sequence tag (EST) (aa700351) was overexpressed in ESCC tissues compared with the normal tissues in cDNA microarray data. Based on the sequence of aa700351, the full-length cDNA was acquired by polymerase chain reaction (PCR) amplification and named EC97. EC97 was 3353 bp long and its encoding protein contained 813 amino acid residues. Northern blot and reverse transcription polymerase chain reaction (RT-PCR) analysis revealed that EC97 had a transcript of 3.4 kb in most human normal tissues we checked and its expression level was increased in 60% (12/20) of tested ESCC tissues versus the normal counterparts. EC97 was mapped to human chromosome 16p12-16p13.1 using radiation hybridization (RH) and predicted to include 25 exons and disseminated over 100 kb of genomic DNA.
authors.affiliation: National Laboratory of Molecular Oncology, Cancer Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, P.R. China.
authors.forename: Jiayun
authors.initials: J
authors.lastname: Lu
authors.forename: Gengxi
authors.initials: G
authors.lastname: Hu
authors.forename: Xiuqin
authors.initials: X
authors.lastname: Wang
authors.forename: Min
authors.initials: M
authors.lastname: Wu
authors.forename: Zhihua
authors.initials: Z
authors.lastname: Liu
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000595:Amino Acid Sequence; D001483:Base Sequence; D002294:Carcinoma, Squamous Cell / Q000235:genetics*; D003001:Cloning, Molecular; D004273:DNA, Neoplasm / Q000235:genetics*; D004938:Esophageal Neoplasms / Q000235:genetics*; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D008297:Male; D008875:Middle Aged; D008969:Molecular Sequence Data; D009363:Neoplasm Proteins / Q000235:genetics* / Q000378:metabolism; D017422:Sequence Analysis, DNA; D033921:Vesicular Transport Proteins
chemical_list: D004273:DNA, Neoplasm; D009363:Neoplasm Proteins; C476226:VPS35L protein, human; D033921:Vesicular Transport Proteins