Biomedical subjects

S S Ivakhno

Publications and source records attributed to S S Ivakhno.

3 recordsLinked to original sources

PubMedDate not supplied

[Microarrays: technologies overview and data analysis].

DNA microarrays are a powerful tool to investigate differential gene expression for thousands of genes simultaneously. In this review, recent advances in DNA microarray technologies and their applications are examined. Various DNA microarray platforms are described along with their methods for fabrication and their use. In addition some algorithms and tools for the analysis of microarray expression data, including clustering methods, partitioning and machine learning methods are discussed.

Gene Expression Profiling↗

PubMedDate not supplied

[From bioinformatics to systems biology: account of the 12th international conference on intelligent systems in molecular biology].

The paper reviews the 12th International Conference on Intelligent Systems for Molecular Biology/Third European Conference on Computational Biology 2004 that was held in Glasgow, UK, during July 31-August 4. A number of talks, papers and software demos from the conference in bioinformatics, genomics, proteomics, transcriptomics and systems biology are described. Recent applications of liquid chromatography - tandem mass spectrometry, comparative genomics and DNA microarrays are given along with the discussion of bioinformatics curricular in higher education.

Computational Biology↗

PubMedDate not supplied

Bioinformatic analysis of changes in expression level of tyrosyl-tRNA synthetase during sporulation process in Saccharomyces cerevisiae.

Study of tyrosyl-tRNA synthetases (TyrRS) gene expression during sporulation cycle in Saccharomyces cerevisiae by bioinformatic analysis of microarray data showed high correlation of TyrRS expression to genes that participate in cell wall assembly. Furthermore, the cell wall biogenesis protein KNR4 which physically interacts with TyrRS and cooperates in beta-1,3 glucan biosynthesis falls into a single gene cluster with TyrRS. One third of genes (13 from 42) in TyrRS gene cluster are responsible for the functions directly related to cell wall assembly and maintenance during sporulation. Putative transcription factor binding site on TyrRS upstream sequences was localized with expectation maximization algorithm. The site could be involved in the control of TyrRS expression during sporulation. Absence of correlation in gene expression between KNR4 and TyrRS in S. cerevisiae and their homologues in Schizosaccharomyces pombe--genes SPBC30D10.17 and TYR1 as well as the lack of correlation in the expression level of TyrRS with other sporulation cycle genes indicates that participation of TyrRS in cell wall assembly in S. cerevisiae appeared later in evolution after divergence of S. pombe and S. cerevisiae.

Base Sequence↗