Complex regulation of the human gene for the Z-DNA binding protein DLM-1

Stefan Rothenburg, Thomas Schwartz, Friedrich Koch-Nolte, Friedrich Haag

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Dlm-1 is a recently described gene which is upregulated in murine stromal cells lining tumors. The function of the 40 kDa DLM-1 protein is poorly understood. DLM-1 contains an N-terminal Z-DNA binding domain homologous to the Zα domain in the RNA editing enzyme ADAR1. We report the cloning of human and rat DLM-1. In addition to the Zα domain, three further conserved regions were identified. One of these is homologous to the second Z-DNA binding domain, Zβ, of ADAR1. We find that human DLM-1 is predominantly expressed in lymphatic tissues. The gene spans 17 kb and consists of 10 exons. DNA transcripts are extremely heterogeneous as a result of alternative splicing and the usage of exon variants combined with at least two transcriptional start sites and 3′-terminal exons. The exon coding for the Zα domain was present in approximately one-third of the analyzed mRNAs. Nearly half of the transcripts contained exon variants that had premature stop codons incorporated. Based on our analysis, over 2000 different mRNAs may be produced due to alternative splicing and usage of different 5′ and 3′ ends. The cellular function of DLM-1 appears to call for a high degree of adaptation by this complex regulation.

Original languageEnglish (US)
Pages (from-to)993-1000
Number of pages8
JournalNucleic Acids Research
Volume30
Issue number4
StatePublished - Feb 15 2002
Externally publishedYes

Fingerprint

Z-Form DNA
DNA-Binding Proteins
Exons
Genes
Alternative Splicing
RNA Editing
Messenger RNA
Nonsense Codon
Lymphoid Tissue
Stromal Cells
Organism Cloning
DNA
Enzymes
Neoplasms
Proteins

ASJC Scopus subject areas

  • Genetics

Cite this

Rothenburg, S., Schwartz, T., Koch-Nolte, F., & Haag, F. (2002). Complex regulation of the human gene for the Z-DNA binding protein DLM-1. Nucleic Acids Research, 30(4), 993-1000.

Complex regulation of the human gene for the Z-DNA binding protein DLM-1. / Rothenburg, Stefan; Schwartz, Thomas; Koch-Nolte, Friedrich; Haag, Friedrich.

In: Nucleic Acids Research, Vol. 30, No. 4, 15.02.2002, p. 993-1000.

Research output: Contribution to journalArticle

Rothenburg, S, Schwartz, T, Koch-Nolte, F & Haag, F 2002, 'Complex regulation of the human gene for the Z-DNA binding protein DLM-1', Nucleic Acids Research, vol. 30, no. 4, pp. 993-1000.
Rothenburg, Stefan ; Schwartz, Thomas ; Koch-Nolte, Friedrich ; Haag, Friedrich. / Complex regulation of the human gene for the Z-DNA binding protein DLM-1. In: Nucleic Acids Research. 2002 ; Vol. 30, No. 4. pp. 993-1000.
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