scholarly journals In silico analysis of Missense Variants in Human MPL Gene Associated with Essential Thrombocythemia

2019 ◽  
Author(s):  
Sahar G. Elbager ◽  
Abier A. Makkawi ◽  
Hadeel A. Mohamed ◽  
Fauzia A. Abdelrahman ◽  
Lamia H. Osman ◽  
...  
Keyword(s):  
Essential Thrombocythemia ◽  
In Silico ◽  
Association Studies ◽  
In Silico Analysis ◽  
Structure And Function ◽  
Janus Kinase ◽  
Hematopoietic Stem ◽  
Missense Variants ◽  
And Function ◽  
Silico Analysis

AbstractIntroductionThe proto-oncogene (MPL) gen encodes the receptor for thrombopoietin (TPO-R), a member of hematopoietic receptor superfamily. Thrombopoietin (TPO), the primary cytokine regulating self-renewal of hematopoietic stem cells, thrombopoiesis and megakaryocytopoiesis. TPO binding to TPO-R induces activation of Janus Kinase 2 (JAK2). Activated JAK2 triggers the activation of downstream positive signaling pathways, leading to the survival, proliferation, and differentiation of hematopoietic cells. Mutations in MPL gene possibly will alter the normal regulatory mechanisms. Numerous MPL mutations have been observed in various hematopoietic cancers such as essential thrombocythemia and primary myelofibrosis and leukemias. In this study, we performed a comprehensive in silico analysis of the functional and structural impact of non-synonymous (nsSNP) that are deleterious to TPO-R structure and function.MethodologyThe data on human MPL gene was retrieved from dbSNP/NCBI. Nine prediction algorithms; SIFT, Polyphen, PROVEAN, SNAP2, Condel, PhD-SNP, I-Mutant, Mutpred. RaptorX and Chimera were used to analyzing the effect of nsSNPs on functions and structure of the TPO-R. STRING and KEGG database were used for TPO-R protein-protein interaction.Results and DiscussionAs per dbSNP database, the human MPL gene contained 445 missense mutations. A total 5 nsSNPs (D295G, R257C, Y252H, R537W and D128Y) were predicted to have the most damaging effects on TPO-R structure and function. STRING and KEGG revealed that MPL had strong interactions with proteins that involved in cell growth, apoptosis, signal transduction pathway, some cancers pathways such as colorectal cancer, lung cancer, pancreas cancers, and skin cancer. A literature search revealed that Y252H has contribute to the development of essential thrombocythemia.ConclusionThese in silico predictions will provide useful information in selecting the target SNPs that are likely to have functional impact on the TPO-R and moreover could act as potential targets in genetic association studies. Keywords: In Silico analyses; JAK2; Missense Variants; MPL gene; Thrombopoietin (TPO); Single nucleotide polymorphism (SNP).

scholarly journals Comprehensive in silico Analysis of IKBKAP gene that could potentially cause Familial dysautonomia

2018 ◽  
Author(s):  
Mujahed I. Mustafa ◽  
Enas A. Osman ◽  
Abdelrahman H. Abdelmoneiom ◽  
Dania M. Hassn ◽  
Hadeel M. Yousif ◽  
...  
Keyword(s):  
In Silico ◽  
Genetic Disorder ◽  
In Silico Analysis ◽  
Familial Dysautonomia ◽  
Structural Effect ◽  
Structure And Function ◽  
Genetic Studies ◽  
And Function ◽  
Silico Analysis

AbstractBackgroundFamilial dysautonomia (FD) is a rare neurodevelopmental genetic disorder within the larger classification of hereditary sensory and autonomic neuropathies. We aimed to identify the pathogenic SNPs in IKBKAP gene by computational analysis software’s, and to determine the structure, function and regulation of their respective proteins.Materials and MethodsWe carried out in silico analysis of structural effect of each SNP using different bioinformatics tools to predict SNPs influence on protein structure and function.Result41 novel mutations out of 973 nsSNPs that are found be deleterious effect on the IKBKAP structure and function.ConclusionThis is the first in silico analysis in IKBKAP gene to prioritize SNPs for further genetic studies.

scholarly journals The Association between SLC25A15 Gene Polymorphisms and Hyperornithinemia-hyperammonemia-homocitrullinuria Syndrome: Using In Silico Analysis

2019 ◽  
Author(s):  
Nuha A. Mahmoud ◽  
Dina T. Ahmed ◽  
Zainab O. Mohammed ◽  
Fatima A. Altyeb ◽  
Mujahed I. Mustafa ◽  
...  
Keyword(s):  
In Silico ◽  
Autosomal Recessive ◽  
Urea Cycle ◽  
In Silico Analysis ◽  
Structure And Function ◽  
Medical Testing ◽  
Bioinformatics Tools ◽  
And Function ◽  
Silico Analysis ◽  
Selection Of

BackgroundHyperornithinemia-hyperammonemia-homocitrullinuria (HHH) syndrome is an autosomal recessive inborn error of the urea cycle. It is caused by mutations in the SLC25A15 gene that codes the mitochondrial ornithine transporter. The aim of this study is to detect and identify the pathogenic SNPs in SLC25A15 gene through a combination set of bioinformatics tools and their effect on the structure and function of the protein.MethodsThe deleterious SNPs in SLC25A15 are detected by various bioinformatics tools, with addition to identifying their effects on the structure and function of this gene.Results20 deleterious SNPs out 287of were found to have their own damaging effects on the structure and function of the SLC25A15 gene.ConclusionThis study is the first in silico analysis of SLC25A15 using a selection of bioinformatics tools to detect functional and structural effects of deleterious SNPs. Finding the pathogenic SNPs is a promising start to innovate new, useful SNP diagnostic markers for medical testing and for safer novel therapies specifically targeting mutant SLC25A15.

scholarly journals In silico analysis ofIDH3Agene revealed Novel mutations associated with Retinitis Pigmentosa

2019 ◽  
Author(s):  
Thwayba A. Mahmoud ◽  
Abdelrahman H. Abdelmoneim ◽  
Naseem S. Murshed ◽  
Zainab O. Mohammed ◽  
Dina T. Ahmed ◽  
...  
Keyword(s):  
Retinitis Pigmentosa ◽  
In Silico ◽  
In Silico Analysis ◽  
Photoreceptor Cells ◽  
Structure And Function ◽  
Novel Mutations ◽  
Inherited Disorders ◽  
Bioinformatics Tools ◽  
And Function ◽  
Silico Analysis

AbstractBackgroundRetinitis Pigmentosa (RP) refers to a group of inherited disorders characterized by the death of photoreceptor cells leading to blindness. The aim of this study is to identify the pathogenic SNPs in the IDH3A gene and their effect on the structure and function of the protein.Methodwe used different bioinformatics tools to predict the effect of each SNP on the structure and function of the protein.Result20 deleterious SNPs out of 178 were found to have a damaging effect on the protein structure and function.Conclusionthis is the first in silico analysis of IDH3A gene and 20 novel mutations were found using different bioinformatics tools, and they could be used as diagnostic markers for Retinitis Pigmentosa.

scholarly journals Novel mutations within PRSS1 Gene that could potentially cause hereditary pancreatitis: Using Comprehensive in silico Approach

2019 ◽  
Author(s):  
Mujahed I. Mustafa ◽  
Abdelrahman H. Abdelmoneim ◽  
Nafisa M. Elfadol ◽  
Soada A. osman ◽  
Tebyan A. Abdelhameed ◽  
...  
Keyword(s):  
In Silico ◽  
In Silico Analysis ◽  
Structure And Function ◽  
Incomplete Penetrance ◽  
Nucleotide Polymorphisms ◽  
Hereditary Pancreatitis ◽  
Novel Mutations ◽  
Autosomal Dominant Disorder ◽  
And Function ◽  
Silico Analysis

AbstractBackgroundHereditary pancreatitis (HP) is an autosomal dominant disorder with incomplete penetrance characterized by recurring episodes of severe abdominal pain often presenting in childhood. The comprehensive in silico analysis of coding SNPs, and their functional impacts on protein level, still remains unknown. In this study, we aimed to identify the pathogenic SNPs in PRSS1 gene by computational analysis approach.Materials and MethodsWe carried out in silico analysis of structural effect of each SNP using different bioinformatics tools to predict Single-nucleotide polymorphisms influence on protein structure and function.ResultTwo novel mutations out of 339 nsSNPs that are found be deleterious effect on the PRSS1 structure and function.ConclusionThis is the first in silico analysis in PRSS1 gene, which will be a valuable resource for future targeted mechanistic and population-based studies.

scholarly journals In Silico Analysis and Modeling of Novel Pathogenic Single Nucleotide Polymorphisms (SNPs) in Human CD40LG Gene

2019 ◽  
Author(s):  
Abdelrahman H. Abdelmoneim ◽  
Mujahed I. Mustafa ◽  
Thwayba A. Mahmoud ◽  
Naseem S. Murshed ◽  
Mohamed A. Hassan
Keyword(s):  
In Silico ◽  
Elevated Serum ◽  
In Silico Analysis ◽  
Structure And Function ◽  
Immunoglobulin M ◽  
Hyper Igm Syndrome ◽  
Bioinformatics Tools ◽  
Hyper Igm ◽  
And Function ◽  
Silico Analysis

Abstract:Background:The X-linked hyper-immunoglobulin M syndrome (XHIGM) is a rare, inherited immune deficiency disorder. It is more common in males. Characterized by elevated serum IgM levels and low to undetectable levels of serum IgG, IgA and IgE. Hyper-IgM syndrome is caused by mutations in the CD40LG gene. Located in human Xq26. CD40LG acts as an immune modulator in activated T cells.Method:We used different bioinformatics tools to predict the effect of each SNP on the structure and function of the protein.Result:8 novel SNPs out of 233 were found to have most deleterious effect on the protein structure and function. While modeling of nsSNPs was studied by Project HOPE software.Conclusion:Better understanding of Hyper-IgM syndrome caused by mutations in CD40LG gene was achieved using in silico analysis. This is the first in silico functional analysis of CD40LG gene and 8 novel mutations were found using different bioinformatics tools, and they could be used as diagnostic markers for hyper-IgM syndrome. These 8 novel SNPs may be important candidates for the cause of different types of human diseases by CD40LG gene.

A panoramic review and in silico analysis of IL-11 structure and function

2016 ◽  
Vol 32 ◽  
pp. 41-61 ◽  
Author(s):  
Manica Negahdaripour ◽  
Navid Nezafat ◽  
Younes Ghasemi
Keyword(s):  
In Silico ◽  
In Silico Analysis ◽  
Structure And Function ◽  
And Function ◽  
Silico Analysis

scholarly journals In Silico Analysis of High-Risk Missense Variants in Human ACE2 Gene and Susceptibility to SARS-CoV-2 Infection

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Asmae Saih ◽  
Hana Baba ◽  
Meryem Bouqdayr ◽  
Hassan Ghazal ◽  
Salsabil Hamdi ◽  
...  
Keyword(s):  
Protein Structure ◽  
High Risk ◽  
In Silico ◽  
In Silico Analysis ◽  
Host Cells ◽  
Structure Stability ◽  
Missense Variants ◽  
Cumulative Score ◽  
And Function ◽  
Silico Analysis

SARS-CoV-2 coronavirus uses for entry to human host cells a SARS-CoV receptor of the angiotensin-converting enzyme (ACE2) that catalyzes the conversion of angiotensin II into angiotensin (1-7). To understand the effect of ACE2 missense variants on protein structure, stability, and function, various bioinformatics tools were used including SIFT, PANTHER, PROVEAN, PolyPhen2.0, I. Mutant Suite, MUpro, SWISS-MODEL, Project HOPE, ModPred, QMEAN, ConSurf, and STRING. All twelve ACE2 nsSNPs were analyzed. Six ACE2 high-risk pathogenic nsSNPs (D427Y, R514G, R708W, R710C, R716C, and R768W) were found to be the most damaging by at least six software tools (cumulative score between 6 and 7) and exert deleterious effect on the ACE2 protein structure and likely function. Additionally, they revealed high conservation, less stability, and having a role in posttranslation modifications such a proteolytic cleavage or ADP-ribosylation. This in silico analysis provides information about functional nucleotide variants that have an impact on the ACE2 protein structure and function and therefore susceptibility to SARS-CoV-2.

scholarly journals In silico analysis of CDC73 gene revealing 11 novel SNPs associated with Jaw Tumor Syndrome

2019 ◽  
Author(s):  
Abdelrahman H. Abdelmoneim ◽  
Alaa I. Mohammed ◽  
Esraa O. Gadim ◽  
Mayada A.Mohammed ◽  
Sara H. Hamza ◽  
...  
Keyword(s):  
In Silico ◽  
Autosomal Dominant ◽  
In Silico Analysis ◽  
Autosomal Dominant Disorder ◽  
Variable Expression ◽  
Back Ground ◽  
And Function ◽  
Molecular Aberrations ◽  
The Impact ◽  
Silico Analysis

AbstractBack groundhyperparathyroidism-jaw tumor (HPT-JT) is an autosomal dominant disorder with variable expression, with an estimated prevalence of 6.7 per 1,000 population. Genetic testing for predisposing CDC73 (HRPT2) mutations has been an important clinical advance, aimed at early detection and/or treatment to prevent advanced disease. The aim of this study is to assess the effect of SNPs on CDC73 structure and function using different bioinformatics tools.MethodComputational analysis using eight different in-silico tools including SIFT, PROVEAN, PolyPhen-2, SNAP2, PhD-SNP, SNPs&GO, PMut and Imutant were used to identify the impact on the structure and/or function of CDC73 gene that might be causing jaw tumour.ResultsFrom (733) SNPs identified in the CDC73 gene we found that only Eleven were deleterious to the function and structure of protein and expected to cause syndrome.ConclusionEleven substantial genetic/molecular aberrations in CDC73 gene were identified that could serve as actionable targets for chemotherapeutic intervention in patients whose disease is no longer surgically curable.

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