Published in: 12th Congress of Iranian Genetics Society
COI code: CIGS13_0542
Paper Language: English
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Authors Myelin proteolipid protein as an effective autoantigen in multiple sclerosisZahra Zamanzadeh - National Institute of Genetics engineering and Biotechnology
mehdi sadeghi - National Institute of Genetics engineering and Biotechnology
ghasem ahangari - National Institute of Genetics engineering and Biotechnology
mitra ataei - National Institute of Genetics engineering and Biotechnology
Abstract:Myelin proteolipid protein (PLP) is the most abundant protein in central nervous system (CNS) myelin. Its abundance in, and restriction to, CNS myelin and its post-translational modification by acylation make PLP an effective autoantigen, which can induce experimental autoimmune encephalomyelitis in rodents and non-human primates and is a target ofpathogenic autoimmunity in people with multiple sclerosis. Goal of this research is to study if PLP act as an auto antigen inmultiple sclerosis. The isoforms of human PLP protein sequences were obtained from NCBI. Then, Uniprot KB was used to find protein properties. Meta prediction method was used to find its epitopes. For this aim some T and B cell epitope prediction siteswere used to predict PLPs epitopes against HLAs which are common in Iranian patients. The overlap regions which werepredicted by most of the sites, selected as immunogenic regions.NCBI results revealed that PLP has two isoforms; one isoform is PLP with 276 amino acid and second, DM20 which is 35amino acids shorter than PLP. Uniprot KB data revealed that this protein is a hydrophobic integral membrane protein containing four trans-membrane regions, one cytoplasmic and two extracellular loops. Three common zones were selectedas immunogenic regions by meta-prediction. Therefore the epitopes of PLP may cause MS by molecular mimicry mechanism
Keywords:myelin proteolipid protein, multiple sclerosis, HLA, epitope prediction, molecular mimicry
COI code: CIGS13_0542
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Zamanzadeh, Zahra; mehdi sadeghi; ghasem ahangari & mitra ataei, 2014, Myelin proteolipid protein as an effective autoantigen in multiple sclerosis, 12th Congress of Iranian Genetics Society, تهران, انجمن ژنتيك ايران, https://www.civilica.com/Paper-CIGS13-CIGS13_0542.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Zamanzadeh, Zahra; mehdi sadeghi; ghasem ahangari & mitra ataei, 2014)
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