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Prediction of the coding sequences of unidentified human genes. XIV. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro.

Kikuno R., Nagase T., Ishikawa K., Hirosawa M., Miyajima N., Tanaka A., Kotani H., Nomura N., Ohara O.

To extend our cDNA project for accumulating basic information on unidentified human genes, we newly determined the sequences of 100 cDNA clones from a set of size-fractionated human adult and fetal brain cDNA libraries, and predicted the coding sequences of the corresponding genes, named KIAA1019 to KIAA1118. The sequencing of these clones revealed that the average size of the inserts and corresponding open reading frames were 5.0 kb and 2.6 kb (880 amino acid residues), respectively. Database search of the predicted amino acid sequences classified 58 predicted gene products into the five functional categories, such as cell signaling/communication, cell structure/motility, nucleic acid management, protein management and cell division. It was also found that, for 34 gene products, homologues were detected in the databases, which were similar in sequence through almost the entire regions. The chromosomal locations of the genes were determined by using human-rodent hybrid panels unless their mapping data were already available in the public databases. The expression profiles of all the genes among 10 human tissues, 8 brain regions (amygdala, corpus callosum, cerebellum, caudate nucleus, hippocampus, substania nigra, subthalamic nucleus, and thalamus), spinal cord, fetal brain and fetal liver were also examined by reverse transcription-coupled polymerase chain reaction, products of which were quantified by enzyme-linked immunosorbent assay.

DNA Res. 6:197-205(1999) [PubMed] [Europe PMC]

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