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Characterization of tissue expression and full-length coding sequence of a novel human gene mapping at 3q12.1 and transcribed in oligodendrocytes.

Nicole-Adeline Fayein 1 Bernard Stankoff 2 Charles Auffray 1 Marie-Dominique Devignes 3
1 Genexpress
2 Biologie des Interactions Neurones / Glie
3 LANGUE ET DIALOGUE - Human-machine dialogue with a significant language component
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : Macro-array differential hybridization of a collection of 5058 human gene transcripts represented in an IMAGE infant brain cDNA library has led to the identification of transcripts displaying preferential or specific expression in brain (Genome Res. 9 (1999) 195; http://idefix.upr420.vjf.cnrs.fr/IMAGE). Most of these genes correspond to as yet undescribed functions. Detailed characterization of the expression, sequence, and genome assignment of one of these genes named C3orf4, is reported here. The full-length sequence of the transcript was obtained by 5′ extension RT-PCR. The gene transcript (2.8 kb) encodes a 253 amino acid long protein, with four transmembrane domains. The position of the C3orf4 gene was determined at 3q12.1 thanks to the draft sequence of the human genome. It is composed of five exons spanning more than 7 kb. No TATAA box but a CpG island was found upstream of the beginning of the gene. Northern blot analysis and in situ hybridization revealed a predominant expression in myelinated structures such as corpus callosum and spinal cord. RT-PCR showed expression of the C3orf4 gene in rat optic nerve and cultured oligodendrocytes, the myelinating cells of the central nervous system, but not in astrocytes. This work supports further investigations aimed at determining the role of the C3orf4 gene in myelinating cells.
Keywords : Central nervous system Genomic organization Peripheral Myelin Protein 22/Epithelial Membrane Protein/Membrane Protein 20/Claudin family In situ hybridization
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https://hal.inria.fr/inria-00000237
Contributor : Marie-Dominique Devignes <>
Submitted on : Friday, September 16, 2005 - 12:41:40 PM
Last modification on : Friday, March 12, 2021 - 2:40:39 PM

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INRIA | CNRS | UPMC | LORIA | UNIV-LORRAINE | SORBONNE-UNIVERSITE

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Nicole-Adeline Fayein, Bernard Stankoff, Charles Auffray, Marie-Dominique Devignes. Characterization of tissue expression and full-length coding sequence of a novel human gene mapping at 3q12.1 and transcribed in oligodendrocytes.. Gene, Elsevier, 2002, 289 (1-2), pp.119-129. ⟨10.1016/S0378-1119(02)00507-3⟩. ⟨inria-00000237⟩

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