BACKGROUND Molecular marker based cancer diagnosis gaining more attention in the current genomics era. So, Hspb1 and Tp53 gene characterization and their mRNA expression might be helpful in diagnosis and prognosis of cat mammary adenocarcinoma. It will also add information in comparative cancer genetics and genomics. OBJECTIVES Eight tumors of Siamese cats were analyzed to ascertain germ-line...

Insulin-like growth factor binding protein 3 (IGFBP-3) is an important regulator of normal and malignant cell growth. It modulates the mitogenic effects of insulin-like growth factors (IGFs) by inhibiting growth through mechanisms both dependent on and independent of IGF binding. IGF-I and IGF-II levels are regulated by binding to the IGF-II receptor, which is inactivated by mutation in human g...

The tea plants have been one of the most widely consumed and oldest nonalcoholic beverage crops in world. Lingyun Baihao are unique species distribute Guangxi. It is well known that aroma usually determine quality tea. In recent years, molecular identification has employed plant at genetic level. However, association loss issues to diversities between wild cultivated not clear. Here, we identif...

Likelihood-ratio statistics are proposed to test for heterogeneity in nucleotide substitution rate among regions of a DNA sequence. The tests examine three-sequence phylogenies, and two specific tests are proposed: a test to detect rate heterogeneity among genic regions within a sequence, over all evolutionary lineages; and a test to detect rate heterogeneity among regions in a specific evoluti...

Using real sequence data, we evaluate the adequacy of assumptions made in evolutionary models of nucleotide substitution and the effects that these assumptions have on estimation of evolutionary trees. Two aspects of the assumptions are evaluated. The first concerns the pattern of nucleotide substitution, including equilibrium base frequencies and the transition/transversion-rate ratio. The sec...

The binding of transcription factors to the core promoter of the juvenile hormone esterase gene was functionally characterized using both a cell-free in vitro transcription functional assay and a cell transfection assay. A core JHE promoter (-61 to +28 bp relative to transcription start site) supported faithful transcription from the in vivo transcription start site. The nuclear extracts from t...

Background and aim: Though transition bias has been previously demonstrated in cattle, however, there has not been any study that has explored transition bias in buffalo nuclear genome. The aim of the present study was to evaluate the nucleotide substitution pattern in the Intron I of Oxidised Low Density Lipoprotein Receptor 1 (OLR1) gene in four breeds of Indian buffalo using 24 different nuc...

A comparative analysis of the features transition-transversion bias nucleotide sequence cytb gene in microbats (Vespertilionidae, Chiroptera) and mice (Muridae, Rodentia) shows both general regularities certain family-level features. common feature two families is fact sharp predominance transitions over transversions at early stages evolutionary process, followed by equalization ts/tv-displace...