The molecular characterization of a recently discovered family of long repetitive sequences, termed ZLRS, is described. These elements belong to the class of moderate dispersed repetitive DNA and are specific to the Zea genus. An 8089-bp sequence from a Zea diploperennis ZLRS element have been elucidated. Sequence analysis reveals the presence of a long terminal repeat-like region, two clusters...

All extant lamprey karyotypes are characterized by almost all dot-shaped microchromosomes. To understand the molecular basis of chromosome structure in lampreys, we performed chromosome C-banding and silver staining and chromosome mapping of the 18S-28S and 5S ribosomal RNA (rRNA) genes and telomeric TTAGGG repeats in the Arctic lamprey (Lethenteron camtschaticum). In addition, we cloned chromo...

We examined the localization of the Pir protein family (Pir1 to Pir4), which is covalently linked to the cell wall in an unknown manner. In contrast to the other Pir proteins, a fusion of Pir1p and monomeric red fluorescent protein distributed in clusters in pir1Delta cells throughout the period of cultivation, indicating that Pir1p is localized in bud scars. Further microscopic analysis reveal...

Mining frequent sequential patterns from sequence databases has been a central research topic in data mining and various efficient mining sequential patterns algorithms have been proposed and studied. Recently, in many problem domains (e.g, program execution traces), a novel sequential pattern mining research, called mining repetitive gapped sequential patterns, has attracted the attention of m...

The major portion of the eukaryotic genome consists of various categories of repetitive DNA sequences which have been studied with respect to their base compositions, organizations, copy numbers, transcription and species specificities; their biological roles, however, are still unclear. A novel quality of a highly repetitive mouse DNA sequence is described which points to a functional role: Al...

In present study a proline rich protein has been identified in lentil EST database using (soyabean) glycine max proline rich protein sequence as query sequence known to be down regulated in response to salinity and drought stress. Sequence similarity search has shown 90 % similarity with chickpea EST sequence Accesion no. GR 398344 and 85% similarity with Lens culinaris EST sequence Accession n...

The insert of a lambda gt11 clone expressing gonococcal protein III was sequenced. The deduced amino acid sequence showed a coding frame of 236 amino acids with a typical 22-amino-acid signal peptide, followed by the known NH2-terminal sequence of PIII. The mature protein has a molecular weight of 23,298. It was found that PIII had extensive and very striking homology to the carboxy-terminal po...

Finding repetitive subsequences in genome is a challengeable problem in bioinformatics research area. A lot of approaches have been proposed to solve the problem, which could be divided to library base and de novo methods. The library base methods use predetermined repetitive genome’s subsequences, where library-less methods attempt to discover repetitive subsequences by analytical approach...

The Triticeae tribe contains some of the world's most important agricultural crops (wheat, barley and rye) and is perhaps, one of the most challenging for genome annotation because Triticeae genomes are primarily composed of repetitive sequences. Further complicating the challenge is the polyploidy found in wheat and particularly in the hexaploid bread wheat genome. Genomic sequence data are av...

We evaluated the epigenetic contributions of repetitive DNA elements to human gene regulation. Human proximal promoter sequences show distinct distributions of transposable elements (TEs) and simple sequence repeats (SSRs). TEs are enriched distal from transcriptional start sites (TSSs) and their frequency decreases closer to TSSs, being largely absent from the core promoter region. SSRs, on th...