Equine Infectious Anemia Virus: Evidence Favoring Classification As a Retravirus

Overview

Journal J Virol

Publisher American Society for Microbiology

Date 1976 Sep 1

PMID 61283

Citations 29

Authors

H P Charman

S Bladen

R V Gilden

L COGGINS

Affiliations

Soon will be listed here.

Abstract

Equine infectious anemia virus (EIAV) has a density of 1.154 g/cm3 in sucrose a high-molecular-weight RNA similar in size to Rauscher murine leukemia virus, and an internal virion reverse transcriptase that utilizes the synthetic RNA template poly(rA) but not the synthetic DNA template poly(dA), both with (dT)12 as primer. Although capable of utilizing manganese at low concentrations (approximately 0.1 mM), EIAV reverse transcriptase showed highest activity in the presence of 9 mM magnesium. The major protein of EIAV has a slightly lower molecular weight than the comparable protein of type C viruses and co-electrophoresed with 125I-labeled p25 of Mason-Pfizer monkey virus. A reference horse serum with antibodies to the major EIAV protein reacted only with EIAV and not with other type C or non-type C retraviruses. Reciprocally, a broadly reactive serum to type C virus p30s and specific sera to a variety of non-type C retraviruses did not react with EIAV. We recommend the inclusion of EIAV in the family Retraviridae.

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