NDLI: Genetic variation at chemokine receptor CCR5 in leporids: alteration at the 2nd extracellular domain by gene conversion with CCR2 in Oryctolagus, but not in Sylvilagus and Lepus species

Content Provider	Springer Nature Link
Author	Carmo, C. R. Esteves, P. J. Ferrand, N. Loo, W.
Copyright Year	2006
Abstract	Whereas in its natural host (Sylvilagus sps.) the effects of myxoma virus infections are benign, in European rabbit (Oryctolagus cuniculus), it causes a highly infectious disease with very high mortality rate, known as myxomatosis. There is evidence that, as with HIV-1 virus in human, myxoma virus may use chemokine receptors such as CCR5 of the host target cell for entry and activation of pathways of immune avoidance. We have characterized and compared CCR5 genes of leporid species with different susceptibility levels to myxomatosis. The CCR5 protein of O. cuniculus differs markedly from all those known from other species. The most striking was the replacement of a specific peptide motif of the second extracellular loop (ECL2) by a motif, which in other species characterizes the CCR2 molecules. While absent in Sylvilagus and Lepus species, this CCR2 imposed CCR5–ECL2 alteration was observed in all genomes of 25 European rabbits, representing the subspecies O. cuniculus algirus and O. cuniculus cuniculus. Allelic variation at the rabbit CCR5 locus confirmed that the gene conversion predates the subspecies split (1–2 Ma).
Starting Page	494
Ending Page	501
Page Count	8
File Format	PDF
ISSN	00937711
Journal	Immunogenetics
Volume Number	58
Issue Number	5-6
e-ISSN	14321211
Language	English
Publisher	Springer-Verlag
Publisher Date	2006-04-05
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chemokine receptors Host parasite interaction Gene conversion Myxoma virus Leporidae Oryctolagus Allergology Cell Biology Gene Function Human Genetics Immunology
Content Type	Text
Resource Type	Article
Subject	Genetics Immunology

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