| Literature DB >> 3163799 |
T M Berkvens1, F Schoute, H van Ormondt, P Meera Khan, A J van der Eb.
Abstract
The housekeeping enzyme adenosine deaminase (ADA) shows a large variation in tissue-specific expression ranging from 1 Iu in red blood cells to 880 Iu in thymocytes. We investigated the acute lymphocytic leukemic cell line Molt-4 (660 Iu ADA/g protein) and the promyelocytic cell line HL-60 (38 Iu ADA/g protein) as a model system to determine the levels at which the tissue-specific expression of ADA is regulated. From our results it can be concluded that the almost 20-fold difference in ADA expression between Molt-4 and HL-60 is the result of differences in the post-transcriptional processing and/or stability of ADA pre-mRNA within the nucleus.Entities:
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Year: 1988 PMID: 3163799 PMCID: PMC336492 DOI: 10.1093/nar/16.8.3255
Source DB: PubMed Journal: Nucleic Acids Res ISSN: 0305-1048 Impact factor: 16.971