Link to the University of Pittsburgh Homepage
Link to the University Library System Homepage Link to the Contact Us Form

Full-length sequence and mosaic structure of a human immunodeficiency virus type 1 isolate from Thailand

Carr, JK and Salminen, MO and Koch, C and Gotte, D and Artenstein, AW and Hegerich, PA and St. Louis, D and Burke, DS and McCutchan, FE (1996) Full-length sequence and mosaic structure of a human immunodeficiency virus type 1 isolate from Thailand. Journal of Virology, 70 (9). 5935 - 5943. ISSN 0022-538X

[img] Plain Text (licence)
Available under License : See the attached license file.

Download (1kB)


Human immunodeficiency virus type 1 isolates of envelope genotype E are contributing substantially to the global pandemic. These strains appear to be mosaics, with the gag gene from clade A and the envelope from clade E; the parental clade E strain has not been found. Here we report the first full genomic sequence of one such mosaic virus, isolate CM240 from Thailand. Multiple breakpoints between the two parental genotypes have been found in a CM240 virus. The entire gag-pol region and must, if not all, of the accessory genes vif, vpr, tat, rev, and vpu appear to derive from clade A. The genotype switches to E shortly after the signal peptide of the envelope and back to clade A near the middle of gp41; thus, the portion of the envelope that lies on the cytoplasmic side of the membrane appears to be principally derived not from clade E, as previously thought, but from clade A. Another small segment not belonging to any recognized clade and presumably also contributed by the parental E strain has been found in the long terminal repeat. It may be significant that the implied virion structure resembles a pseudotype virus with the matrix and core from one clade and the outer envelope from another. In the lung terminal repeat, differences were observed between CM240 and other clades in the number of NF-κB binding sites, the sequence of the TATA box, and the putative secondary structure of the transactivation response region stem-loop. The mosaic structure of a CM240 virion is suggestive of phenotypic differences which might have contributed to the emergence of this variant.


Social Networking:
Share |


Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Carr, JK
Salminen, MO
Koch, C
Gotte, D
Artenstein, AW
Hegerich, PA
St. Louis, D
Burke, DSdonburke@pitt.eduDONBURKE
McCutchan, FE
Centers: Other Centers, Institutes, Offices, or Units > Center for Vaccine Research
Date: 1 January 1996
Date Type: Publication
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Journal or Publication Title: Journal of Virology
Volume: 70
Number: 9
Page Range: 5935 - 5943
DOI or Unique Handle: 10.1128/jvi.70.9.5935-5943.1996
Institution: University of Pittsburgh
Schools and Programs: Graduate School of Public Health > Epidemiology
Refereed: Yes
ISSN: 0022-538X
Date Deposited: 08 May 2015 15:10
Last Modified: 02 Aug 2020 14:56


Monthly Views for the past 3 years

Plum Analytics

Actions (login required)

View Item View Item