The molecular epidemiology and evolution of Epstein-Barr virus: sequence variation and genetic recombination in the latent membrane protein-1 gene.
نویسندگان
چکیده
The phylogeny and evolution of Epstein-Barr virus (EBV) genetic variation are poorly understood. EBV latent membrane protein-1 (LMP-1) gene sequences are especially heterogeneous and may be useful as a tool for EBV genotype identification. Therefore, LMP-1 sequences obtained directly from EBV-infected human tissues were examined by PCR amplification and cloning. EBV genotypes were defined as "strains" from among 22 identified LMP-1 sequence patterns. Three molecular mechanisms were identified by which genetic diversity arises in the LMP-1 gene: point mutation, sequence deletion or duplication, and homologous recombination. The rate of LMP-1 gene evolution was found to be accelerated by coinfection with multiple EBV strains. The results of this study refine our understanding of LMP-1 sequence variation and enable accurate discrimination between independent EBV infection events and the consequence of intrahost EBV evolution. Thus, this LMP-1 sequence-based approach to EBV molecular epidemiology will facilitate the study of intrahost EBV infection, coinfection, and persistence.
منابع مشابه
Molecular Characterization of the Epstein-Barr Virus BGLF2 Gene, its Expression, and Subcellular Localization
Background: Epstein–Barr virus (EBV) is a universal herpes virus which can cause a life-long and largely asymptomatic infection in the human population. However, the exact pathogenesis of the EBV infection is not well known.Objective: A comprehensive bioinformatics prediction was carried out for investigating the molecular properties of the BGLF2 and to a...
متن کاملThe Major Sources of Genetic Differentiation Among Apricot Latent Virus (ApLV) Isolates
Background and Aims: Apricot latent virus (ApLV) is a species within Foveavirus genus (Betaflexiviridae family, Tymovirales order). Phylogenetic analyses using different ORFs nucleotide sequences divided most ApLV isolates into two clusters. However, there is little data about the sources of genetic differentiation among ApLV isolates. Materials and Methods: Partial coat protein (CP) sequences...
متن کاملStudy on the association of Epstein - Barr virus with breast cancer in Khorramabad breast cancer patients, Iran
Background: Breast cancer is one of the most common malignancies in the world, and early diagnosis of this cancer is a key factor in its treatment. This cancer is a multi-stage disease, in which viruses can play a role. EBV is known as an important factor in the development of some human cancers. Therefore, this study was conducted to determine the relationship between Epstein-Barr virus, EBV, ...
متن کاملEvaluation of Changes in NFKB Gene Expression Following Epstein-Barr Virus and its Participation in the Half-Life of Patients With Acute Epstein-Barr Positive Lymphoblastic Leukemia
Aim: Leukemia targets are one of the most common childhood malignancies. Epstein-Barr virus is a tumorigenic virus of the herpes family of viruses and causes primary infection in young children. The aim of this study was to evaluate the increase in NFKB expression following EBV virus and its contribution to the half-life of EBV-positive acute lymphoblastic leukemia patients. Materials and Meth...
متن کاملThe relationship between Human Papillomavirus and Epstein-Barr virus infections with breast cancer of Iranian patients
Background: Breast cancer is the malignancy in humans and other mammals. Several risk factors are involved in their appearance such as higher hormone levels and obesity. Identification of a mouse mammary tumor virus supports a viral etiology for breast tumors in animals. Viruses have been implicated in the development of various cancers, but viral induction for formation breast cancer is contro...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Journal of infectious diseases
دوره 179 4 شماره
صفحات -
تاریخ انتشار 1999