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العنوان
Studies on expression and characterization of proteins from Babesia species parasites
المؤلف
Mousa, Ahmed Abdelmoniem Mohamed.
هيئة الاعداد
باحث / Ahmed Abdelmoniem Mohamed Mousa
مشرف / Salah Sayed El Ballal
مشرف / , Mabrouk Attia Abd Eldaim
مناقش / , Mabrouk Attia Abd Eldaim
الموضوع
Parasites. Parasites - Ecology. Parasites - Evolution.
تاريخ النشر
2014.
عدد الصفحات
1computer optical disc :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
Veterinary (miscellaneous)
تاريخ الإجازة
1/1/2014
مكان الإجازة
جامعة مدينة السادات - كلية الطب البيطري بالسادات - Department of Biochemistry and Chemistry of Nutrition.
الفهرس
Only 14 pages are availabe for public view

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from 118

Abstract

Identification and molecular characterization of Babesia gibsoni proteins with potential antigenic properties are crucial for the development and validation of the serodiagnostic method. In this study, we isolated a cDNA clone consists of an ORF of 1,995 bp encoding 664 amino acid residues encoding a novel B. gibsoni 76-kDa protein by immunoscreening of the parasite cDNA library. The translated BgGARP contained a glutamic acid-rich region profile at amino acid residues (174-583 aa) in the C-terminal, therefore, the protein was designated as Babesia gibsoni glutamic acid-rich protein (BgGARP). A BLASTp analysis of the translated BgGARP polypeptide demonstrated that the peptide shared shared 35.4% and 27.4% degree of identity with B. bigemina P200 (GenBank: AAF63787.1) and B. bovis P200 (GenBank: XP_001608924.1) proteins, respectively. The translated BgGARP revealed high hydrophilicity with a good antigenicity index. Analysis of the probability that the sequence will adopt a coiled-coil conformation revealed that BgGARP contained a coiled-coil domain at amino acid residues (181-452 aa).
A truncated BgGARP cDNA (BgGARPt) of 342 bp encoding a predicted 13-kDa peptide was expressed in Escherichia coli (E. coli). Six 6-week-old female ICR mice (Clea, Japan) were intraperitoneally immunized with 100 μg of purified rBgGARPt emulsified with an equal volume of complete Freund’s adjuvant (Difco Laboratories, USA).