SHsearch. A Method for Fast Remote Homology Detection - Mohamed Baddar Noha Yousri - Master's Thesis - Mathematics - Statistics - Publish your bachelor's or master's thesis, dissertation, term paper or essay.
Hidden Markov models (HMMs) have been extensively used in biological sequence analysis. In this paper, we give a tutorial review of HMMs and their applications in a variety of problems in molecular biology. We especially focus on three types of HMMs.
Remote homology detection is a key element of protein structure and function analysis in computational and experimental biology. This paper presents a simple representation of protein sequences.Remote protein homology detection has been widely used as a part of the analysis of protein structure and function. In this study, the good quality of protein feature vectors is the main aspect to.It has been believed for a long time that the transfer and fixation of genetic material from RNA viruses to eukaryote genomes is very unlikely. However, during the last decade, there have been several cases in which “virus-to-host” gene transfer from various viral families into various eukaryotic phyla have been described. These transfers have been identified by sequence similarity, which.
Protein identification and characterization Identification and characterization with peptide mass fingerprinting data Find.
Protein sequencing is the practical process of determining the amino acid sequence of all or part of a protein or peptide.This may serve to identify the protein or characterize its post-translational modifications.Typically, partial sequencing of a protein provides sufficient information (one or more sequence tags) to identify it with reference to databases of protein sequences derived from.
The analysis of uncharacterized biomolecular sequences obtained as a result of genetic screens, expression profile studies, etc. is a standard task in a life science research environment. The understanding of protein function is typically the main difficulty. This chapter intends to give practical advise to students and researchers that have only introductory knowledge in the field of protein.
Representative Based Protein Sequence Clustering Examining Committee: Chair:. pair-wise sequence comparison. We address the protein clustering issues in details and give a. sequence similarity cannot be used as transitive to detect the homology. This makes the homology detection more challenging for the methods based on sequence analysis.
Data science allows the extraction of practical insights from large-scale data. Here, we contextualize it as an umbrella term, encompassing several disparate subdomains. We focus on how genomics fits as a specific application subdomain, in terms of well-known 3 V data and 4 M process frameworks (volume-velocity-variety and measurement-mining-modeling-manipulation, respectively).
Data science as a formal discipline is currently popular because of its tremendous commercial utility. Large companies have used several well-established computational and statistical techniques to mine high volumes of commercial and social data ().The broad interest across many applications stirred the birth of data science as a field that acts as an umbrella, uniting a number of disparate.
The Mediterranean fruit fly (medfly), Ceratitis capitata, is a major destructive insect pest due to its broad host range, which includes hundreds of fruits and vegetables. It exhibits a unique ability to invade and adapt to ecological niches throughout tropical and subtropical regions of the world, though medfly infestations have been prevented and controlled by the sterile insect technique.
Second, the sequence comparison and homology search was attained with the use of several programs of alignment (BLAST, FASTA, and CLUSTALW) and by hidden Markov models (HMM) ). Third, structural alignments were presented with the program Structural Alignment of Multiple Proteins (STAMP) ( 9 ).
The bacterial genus Listeria contains pathogenic and non-pathogenic species, including the pathogens L. monocytogenes and L. ivanovii, both of which carry homologous virulence gene clusters such as the prfA cluster and clusters of internalin genes. Initial evidence for multiple deletions of the prfA cluster during the evolution of Listeria indicates that this genus provides an interesting.
Novel protein kinases are expected in bacteria, e.g. the only two annotated protein kinases in Mycoplasma pneumoniae account for only five out of 63 identified protein phosphorylation events. The correlation of presence of SELO genes in bacteria with aquatic and aerobic lifestyles aligns with the hypothesis that these genes are involved in stress responses, possibly in oxidative stress response.
Metagenomics applies a suite of genomic technologies and bioinformatics tools to directly access the genetic content of entire communities of organisms. The field of metagenomics has been responsible for substantial advances in microbial ecology, evolution, and diversity over the past 5 to 10 years, and many research laboratories are actively engaged in it now.