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Title: Cloning and characterization of the promoter region of the murine alpha-4 integrin subunit
Authors: De Meirsman, Catherine
Schollen, E
Jaspers, M
Ongena, K
Matthijs, Gert
Marynen, Peter
Cassiman, Jean-Jacques #
Issue Date: Jul-1994
Series Title: DNA and cell biology. vol:13 issue:7 pages:743-54
Abstract: To study the differential expression of the murine VLA-4 (alpha 4 beta 1) integrin, the 5'-flanking region of the gene for the alpha subunit (alpha 4m) was isolated and a cDNA for alpha 4m was obtained with reverse transcriptase polymerase chain reaction (RT-PCR). The cDNA sequence contained a difference in the signal peptide region compared to the previously described cDNA (Neuhaus et al., 1991). As a consequence, another start codon is predicted, resulting in a decrease in size of the signal peptide. This was confirmed by genomic sequencing. The promoter region was delimited by ribonuclease protection assay (RPA) and transfection experiments fusing 5'-upstream fragments to the luciferase gene. A fragment extending from -936 to +221 was capable of controlling the expected cell-type-specific expression. Sequence comparison of the mouse alpha 4m promoter region with the human alpha 4h promoter revealed little homology. Like most integrin subunits, alpha 4m lacks TATA anc CCAAT boxes. Putative recognition sites for DNA-binding nuclear factors (AP1, AP2, Sp1, and PU1) were identified. The characterization of the promoter region and further identification of the transcription regulatory elements should provide insight in the regulation of alpha 4m integrin gene expression.
ISSN: 1044-5498
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Clinical Genetics Section (-)
Molecular Genetics Section (-)
Human Mutations and Polymorphisms Section (-)
Forensic Biomedical Sciences
Department of Health and Technology - UC Leuven
Department of Human Genetics - miscellaneous
# (joint) last author

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