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[Restriction analysis of the DNA of aleutian mink disease virus strain P-1]
Abstract:
The II-1 strain of the Aleutian disease virus (ADV-II-1) was isolated from experimentally infected mink organs. The viral particles were isolated having 23 to 24 nm in diameter with the buoyant density of the virions in CsCl gradient being 1.41 g.ml-1. The single stranded ADV DNA extracted from the purified virus particles had the molecular mass about 1.4 . 10(6) (4800 bases). The double-stranded replicative form of ADV DNA has been synthesized in vitro with the use of a large "Klenow" fragment of DNA-polymerase I. A restriction endonuclease map of ADV-II-1 DNA has been constructed with the use of in vitro synthesized double-stranded DNA.
Insights
Researchers isolated the Aleutian disease virus (ADV-II-1) from mink, characterizing its DNA and creating a restriction map. This study details the viral particle properties and ADV DNA synthesis for further research.
Area of Science:
- Virology
- Molecular Biology
- Genetics
Context:
- Aleutian disease virus (ADV) is a significant pathogen in mink populations.
- Previous research has focused on ADV pathogenesis and epidemiology.
- Characterization of ADV strains at the molecular level is crucial for understanding viral replication.
Purpose:
- To isolate and characterize the ADV-II-1 strain from experimentally infected mink.
- To determine the physical and biochemical properties of ADV-II-1 viral particles and DNA.
- To construct a restriction endonuclease map of the ADV-II-1 DNA.
Summary:
- The ADV-II-1 strain was isolated from mink organs, with viral particles measuring 23-24 nm in diameter and a buoyant density of 1.41 g/mL in CsCl.
- Single-stranded ADV DNA from purified particles had a molecular mass of approximately 1.4 x 10^6 Da (4800 bases).
- Double-stranded ADV DNA was synthesized in vitro using a Klenow fragment of DNA polymerase I, enabling the construction of a restriction endonuclease map for ADV-II-1 DNA.
Impact:
- Provides foundational molecular data for the ADV-II-1 strain.
- Facilitates further studies on ADV genetics and replication mechanisms.
- Aids in the development of diagnostic tools and potential antiviral strategies against Aleutian disease.