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The mouse zinc-fingers and homeoboxes 1 (ZHX1) gene was cloned and its transcriptional regulatory mechanism analysed. The mouse ZHX1 gene spans approximately 29 kb and consists of five exons. Exons 1-3 contain the nucleotide sequence of the 5'-noncoding region of mouse ZHX1 cDNA, exon 4 contains a part of the 5'-noncoding region, an entire coding sequence, and a part of the 3'-noncoding sequence,...
Mrjp1 gene belongs to the honeybee mrjp gene family encoding the major royal jelly proteins (MRJPs), secreted by nurse bees into the royal jelly. In this study, we have isolated the genomic clone containing the entire mrjp1 gene and determined its sequence. The mrjp1 gene sequence spans over 3038 bp and contains six exons separated by five introns. Seven mismatches between the mrjp1 gene sequence...
Rat BTEB2 protein is a transcription factor with three zinc fingers that binds to GC box, and is expressed in the placenta, intestine, and testis. To understand mechanisms of gene expression of BTEB2, we have cloned the rat BTEB2 gene from a rat liver genomic library and determined the gene structure. The BTEB2 gene contained 4 exons. In the process of cloning of the BTEB2 gene, we cloned two pseudogenes...
To study the transcriptional mechanisms by which expression of the dopamine receptor regulating factor (DRRF) gene is regulated, a murine genomic clone was isolated using a DRRF cDNA as probe. A 24 kb genomic fragment which comprises 13 kb upstream of the transcription initiation site was sequenced. The promoter region lacks a TATA box and CAAT box, is rich in G+C content, and has multiple putative...
The forkhead genes encode a family of transcriptional regulators with important roles in the control of animal development. The genomic sequence has revealed Caenorhabditis elegans has 15 forkhead genes of which six had been experimentally characterised previously. The remaining nine have now been investigated by RNAi and reporter gene expression pattern analysis. Two (B0286.5 and F26B1.7) have key...
The vascular component of trees possesses some of the most specialized processes active in the formation of roots, stems, and branches, and its wood component continues to be of primary importance to our daily lives. The molecular mechanisms of wood development, however, remain poorly understood with few well-characterized regulatory genes. We have identified a vascular tissue-specific MADS-box gene,...
A major function of the mitogen-activated protein kinase (MAPK) pathways is to control eukaryotic gene expression programmes in response to extracellular signals. MAPKs directly control gene expression by phosphorylating transcription factors. However, it is becoming clear that transcriptional regulation in response to MAPK signaling is more complex. MAPKs can also target coactivators and corepressors...
The mammalian AP-2 family of transcription factors consists of four members, AP-2α, AP-2β, AP-2γ and AP-2δ, which play an important role in regulating gene expression during development and differentiation of multiple organs and tissues. The defining feature of the AP-2 family is a highly conserved carboxy-terminal basic helix-turn-helix domain that is involved in dimerization and sequence-specific...
Using avian B lymphoma-derived DT40 cells, we disrupted a gene encoding the transcription factor PU.1. The mutant mRNA codes for a protein incapable of functioning as a transcription factor because of the deletion of the protein's DNA-binding domain. The absence of a functional PU.1 protein in the mutant cells was confirmed by Western blotting and electrophoretic mobility shift assay, thereby demonstrating...
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