Abstract:
:Various subsets of self-avoiding walks naturally appear when investigating existing methods designed to predict the 3D conformation of a protein of interest. Two such subsets, namely the folded and the unfoldable self-avoiding walks, are studied computationally in this article. We show that these two sets are equal and correspond to the whole n-step self-avoiding walks for n≤14, but that they are different for numerous n≥108, which are common protein lengths. Concrete counterexamples are provided and the computational methods used to discover them are completely detailed. A tool for studying these subsets of walks related to both pivot moves and protein conformations is finally presented.
journal_name
Comput Biol Chemjournal_title
Computational biology and chemistryauthors
Bahi JM,Guyeux C,Mazouzi K,Philippe Ldoi
10.1016/j.compbiolchem.2013.10.001subject
Has Abstractpub_date
2013-12-01 00:00:00pages
246-56eissn
1476-9271issn
1476-928Xpii
S1476-9271(13)00092-3journal_volume
47pub_type
杂志文章abstract::Proline is an important osmotic adjusting material greatly accumulated under drought stress and can help plant to adapt to osmotic stress. MicroRNAs (miRNAs) are small, endogenous RNAs that play important regulatory roles in plant development and stress response by negatively affecting gene expression at post-transcri...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2013.04.006
更新日期:2013-10-01 00:00:00
abstract::Functional classification of genes represents one of the most basic problems in genome analysis and annotation. Our analysis of some of the popular methods for functional classification of genes shows that these methods are not always consistent with each other and may not be specific enough for high-resolution gene f...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2008.02.007
更新日期:2008-06-01 00:00:00
abstract::Cytosine methylation is one of the most important RNA epigenetic modifications. With the development of experimental technology, scientists attach more importance to RNA cytosine methylation and find bisulfite sequencing is an effective experimental method for RNA cytosine methylation study. However, there are only a ...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2016.09.003
更新日期:2016-12-01 00:00:00
abstract::An oscillation with a period of around 500 kb in guanine and cytosine content (GC%) is observed in the DNA sequence of human chromosome 21. This oscillation is localized in the rightmost one-eighth region of the chromosome, from 43.5 Mb to 46.5 Mb. Five cycles of oscillation are observed in this region with six GC-ric...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2004.09.011
更新日期:2004-12-01 00:00:00
abstract::Anethum sowa L. has been used as a spice herb in the Asian and European culinary systems to add flavour and taste. The studied plant has diverse folkloric medicinal value. Present study was designed to isolate phytochemicals from the hexane, chloroform and ethyl acetate extracts of the roots by various chromatographic...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2018.11.025
更新日期:2019-02-01 00:00:00
abstract::With an increasing number of publicly available microarray datasets, it becomes attractive to borrow information from other relevant studies to have more reliable and powerful analysis of a given dataset. We do not assume that subjects in the current study and other relevant studies are drawn from the same population ...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2005.04.002
更新日期:2005-06-01 00:00:00
abstract::Genome-wide association analysis involved many single-nucleotide polymorphisms (SNPs) data is challenging mathematically and computationally. Hence, we propose the odds ratio-based discrete binary particle swarm optimization (OR-DBPSO) method that uses the OR as a new quantitative measure of disease risk among many SN...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2008.07.029
更新日期:2009-02-01 00:00:00
abstract::The plant-specific TCP transcription factors, which play critical roles in diverse aspects of biological processes, have been identified and analyzed in various plant species. However, no systematical study of TCP family genes in potato (Solanum tuberosum L.) has been undertaken. In this study, a total of 31 non-redun...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2018.11.009
更新日期:2019-02-01 00:00:00
abstract::Developments of novel inhibitors to prevent the function of 5-lipoxygenase (5-LOX) proteins that are responsible for a variety of inflammatory and allergic disease are a major challenge in the scientific community. In this study, robust QSAR classification models for predicting 5-LOX activity were developed using mach...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2018.10.002
更新日期:2018-12-01 00:00:00
abstract::Up to this date, there has been an ongoing debate about the mode of action of general anesthetics, which have postulated many biological sites as targets for their action. However, postoperative nausea and vomiting are common problems in which inhalational agents may have a role in their development. When a mode of ac...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2018.04.009
更新日期:2018-08-01 00:00:00
abstract::We have developed a computational technique refereed to as complex phylogenetic profiling. Our approach combines logic analyses of gene phylogenetic profiles and phenotype data. Logic analysis of phylogenetic profiles identifies sets of proteins whose presence or absence follows certain logic relationships. Our approa...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2008.07.003
更新日期:2008-12-01 00:00:00
abstract::MicroRNAs (miRNAs) are small (19-25 base long), non-coding RNAs that regulate post-transcriptional gene expression by cleaving targeted mRNAs in several eukaryotes. The miRNAs play vital roles in multiple biological and metabolic processes, including developmental timing, signal transduction, cell maintenance and diff...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2017.08.005
更新日期:2017-10-01 00:00:00
abstract::Glucokinase (GK) is the main enzyme which controls the blood glucose levels in a safe and narrow physiological range in humans. GK activators are the novel type of therapeutic agents which act on GK enzyme and show their anti-diabetic potential. The present work was planned to synthesize and evaluate the antidiabetic ...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2018.02.018
更新日期:2018-04-01 00:00:00
abstract::Alzheimer's disease (AD) is a progressive neurodegenerative disease of central nervous system among elderly people. Human acetylcholinesterase (hAChE), an important enzyme in neuronal signaling, is responsible for the degradation of acetylcholine which in turn prevents the post synaptic signal transmissions. hAChE has...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2017.04.002
更新日期:2017-06-01 00:00:00
abstract::We report ligand field molecular mechanics, density functional theory and semi-empirical studies on the binding of Cu(II) to GlyHisLys (GHK) peptide. Following exhaustive conformational searching using molecular mechanics, we show that relative energy and geometry of conformations are in good agreement between GFN2-xT...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2020.107265
更新日期:2020-06-01 00:00:00
abstract::Cyclin-Dependent Kinases (CDKs) are known to play crucial roles in controlling cell cycle progression of eukaryotic cell and inhibition of their activity has long been considered as potential strategy in anti-cancer drug research. In the present work, a series of porphyrin-anthraquinone hybrids bearing meso-substituen...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2016.12.005
更新日期:2017-04-01 00:00:00
abstract::Natural products as well as their derivatives play a significant role in the discovery of new biologically active compounds in the different areas of our life especially in the field of medicine. The synthesis of compounds produced from natural products including cytisine is one approach for the wider use of natural s...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2020.107407
更新日期:2020-11-05 00:00:00
abstract::The growth and spread of drug resistance in bacteria have been well established in both mankind and beasts and thus is a serious public health concern. Due to the increasing problem of drug resistance, control of infectious diseases like diarrhea, pneumonia etc. is becoming more difficult. Hence, it is crucial to unde...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2015.07.011
更新日期:2015-10-01 00:00:00
abstract::Membrane electroporation seems to be a useful method for delivery of biological active compounds into the cell. Although it is known that this phenomenon is sensitive to the electric field intensity, duration of the electric pulse and its shape, it is not fully understood. In some theoretical descriptions it is postul...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2008.02.001
更新日期:2008-06-01 00:00:00
abstract::Tamoxifen is a prodrug and cytochrome P450 2C9 (CYP2C9) has a significant role in the formation of a therapeutically more potent metabolite (4-hydroxytamoxifen) than tamoxifen. Since CYP2C9 exhibits genetic polymorphism, it may contribute to different phenotypic drug response. Moreover, it may be misleading if the pos...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2019.107166
更新日期:2020-02-01 00:00:00
abstract::The identification of isatin sulfonamide as a potent small molecule inhibitor of caspase-3 had fuelled the synthesis and characterization of the numerous sulfonamide class of inhibitors to optimize for potency. Recent works that relied on the ligand-based approaches have successfully shown the regions of optimizations...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2017.08.006
更新日期:2017-12-01 00:00:00
abstract::MicroRNAs (miRNAs) have been implicated in complex vertebrate developmental and pathological systems as a versatile class of molecules involved in the regulation of various biological processes and molecular pathways. To elucidate the role of miRNAs in human somatic cells, an understanding of the molecular framework r...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2009.09.003
更新日期:2009-12-01 00:00:00
abstract::In process of creating genetic maps different labs/research groups obtain overlapping parts of the map. Merging these parts into one integrative map is based on looking for maximum shared marker orders among the maps. Really, not all shared markers of such maps have consensus order that obstructs building of the integ...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2005.09.007
更新日期:2006-02-01 00:00:00
abstract::Relative amino acid residue solvent accessibility values allow the quantitative comparison of atomic solvent-accessible surface areas in different residue types and physical environments in proteins and in protein structural alignments. Geometry-optimised tri-peptide structures in extended solvent-exposed reference co...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2014.11.007
更新日期:2015-02-01 00:00:00
abstract::Human intestinal absorption (HIA) of the drugs administered through the oral route constitutes an important criterion for the candidate molecules. The computational approach for predicting the HIA of molecules may potentiate the screening of new drugs. In this study, ensemble learning (EL) based qualitative and quanti...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2016.01.005
更新日期:2016-04-01 00:00:00
abstract::The NS2B-NS3 protease is essential for the replication process of Dengue Virus, which make it an attractive target for anti-virus drugs. Since a considerable number of NS2B-NS3 protease inhibitors have been reported so far, it is significant for the discovery of more effective antivirus compounds with the essential st...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2018.09.010
更新日期:2018-12-01 00:00:00
abstract::Polymerase chain reaction (PCR) is an important diagnostic tool for the amplification of DNA. The PCR process can be treated as a problem in biochemical engineering. This study focuses on the development of a mathematical model of the polymerase chain reaction. The PCR process consists of three steps: denaturation of ...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2004.03.001
更新日期:2004-07-01 00:00:00
abstract::The shortest common supersequence (SCS) problem is a classical NP-hard problem, which is normally solved by heuristic algorithms. One important heuristic that is inspired by the process of chemical reactions in nature is the chemical reaction optimization (CRO) and its algorithm known as CRO_SCS. In this paper we prop...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2020.107327
更新日期:2020-10-01 00:00:00
abstract::Blood-feeding animals are known for their ability to produce bioactive compounds to impair haemostasis and suppress pain perception in the host. These compounds are extremely appealing for pharmacological development since they are generally very effective and specific for their molecular target. A preliminary RNA-Seq...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2018.05.014
更新日期:2018-08-01 00:00:00
abstract::In this study, we develop a program that allows us to reveal DNA receptors, i.e. nucleotide sequences that may form more than one non-canonical structure. The data obtained may be analysed either experimentally or using DNA banks, and refers to the coding, non-coding or promotor region of the gene. These results provi...
journal_title:Computational biology and chemistry
pub_type: 杂志文章
doi:10.1016/j.compbiolchem.2019.04.009
更新日期:2019-06-01 00:00:00