Evidence map›Paper›PMID 21187897›Full record

ArticlePLoS pathogens2010

HIV-1 envelope subregion length variation during disease progression.

Marcel E Curlin, Rafael Zioni, Stephen E Hawes, Yi Liu, Wenjie Deng, Geoffrey S Gottlieb, Tuofu Zhu, James I Mullins

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

67 citing papers in PubMed, 1 synthesis or guideline pooled it, 93 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article

7 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Marcel E CurlinDepartment of Medicine, University of Washington School of Medicine, Seattle, Washington, United States of America. cemarcel@u.washington.edu
Rafael Zioni
Stephen E Hawes
Yi Liu
Wenjie Deng
Geoffrey S Gottlieb
Tuofu Zhu
James I Mullins
University of Washington · US

Funding

University of Washington/Fred Hutch Center for AIDS ResearchP30AI027757 · NIAID · UNIVERSITY OF WASHINGTON · PI Kenneth Sherr · 1988 to 2026
$104.9M
Viral Determinants of HIV-1 Transmission in African HeterosexualsP01AI057005 · NIAID · UNIVERSITY OF WASHINGTON · PI COREY, LAWRENCE · 2003 to 2014
$20.5M
Occurrence and Outcome of Dual HIV-1 InfectionR37AI047734 · NIAID · UNIVERSITY OF WASHINGTON · PI MULLINS, JAMES IVAN · 2005 to 2014
$5.9M
OCCURRENCE AND OUTCOME OF DUAL HIV-1 INFECTIONR01AI047734 · NIAID · UNIVERSITY OF WASHINGTON · PI MULLINS, JAMES IVAN · 2000 to 2004
$2.4M
HIV-1 and Host Cell Changes in Disease ProgressionR01AI058894 · NIAID · UNIVERSITY OF WASHINGTON · PI MULLINS, JAMES IVAN · 2004 to 2007
$1.9M
Minimal Levels of HIV-1 in Vaccinated &Exposed PersonsR01AI055336 · NIAID · UNIVERSITY OF WASHINGTON · PI ZHU, TUOFU · 2003 to 2007
$1.6M
Role of CD14+ Monocytes in HIV-1 InfectionR01AI049109 · NIAID · UNIVERSITY OF WASHINGTON · PI ZHU, TUOFU · 2001 to 2005
$1.3M
SUPPRESSING HIV INFECTION IN EXPOSED SERONEGATIVE ADULTSR01AI045402 · NIAID · UNIVERSITY OF WASHINGTON · PI ZHU, TUOFU · 1999 to 2003
$873k
A longitudinal study of HIV-1 infection in UgandaK08AI052791 · NIAID · UNIVERSITY OF WASHINGTON · PI CURLIN, MARCEL E · 2002 to 2006
$578k
NIAID NIH HHS AI047734NIAID NIH HHS AI058894NIAID NIH HHS AI27757NIAID NIH HHS AI45402NIAID NIH HHS AI49109NIAID NIH HHS AI52791NIAID NIH HHS AI55336NIAID NIH HHS AI57005NIAID NIH HHS K08 AI052791NIAID NIH HHS P01 AI057005NIAID NIH HHS P30 AI027757NIAID NIH HHS R01 AI045402NIAID NIH HHS R01 AI047734NIAID NIH HHS R01 AI049109NIAID NIH HHS R01 AI055336NIAID NIH HHS R01 AI058894NIAID NIH HHS R37 AI047734
6 · The paper itself

Abstract

The V3 loop of the HIV-1 Env protein is the primary determinant of viral coreceptor usage, whereas the V1V2 loop region is thought to influence coreceptor binding and participate in shielding of neutralization-sensitive regions of the Env glycoprotein gp120 from antibody responses. The functional properties and antigenicity of V1V2 are influenced by changes in amino acid sequence, sequence length and patterns of N-linked glycosylation. However, how these polymorphisms relate to HIV pathogenesis is not fully understood. We examined 5185 HIV-1 gp120 nucleotide sequence fragments and clinical data from 154 individuals (152 were infected with HIV-1 Subtype B). Sequences were aligned, translated, manually edited and separated into V1V2, C2, V3, C3, V4, C4 and V5 subregions. V1-V5 and subregion lengths were calculated, and potential N-linked glycosylation sites (PNLGS) counted. Loop lengths and PNLGS were examined as a function of time since infection, CD4 count, viral load, and calendar year in cross-sectional and longitudinal analyses. V1V2 length and PNLGS increased significantly through chronic infection before declining in late-stage infection. In cross-sectional analyses, V1V2 length also increased by calendar year between 1984 and 2004 in subjects with early and mid-stage illness. Our observations suggest that there is little selection for loop length at the time of transmission; following infection, HIV-1 adapts to host immune responses through increased V1V2 length and/or addition of carbohydrate moieties at N-linked glycosylation sites. V1V2 shortening during early and late-stage infection may reflect ineffective host immunity. Transmission from donors with chronic illness may have caused the modest increase in V1V2 length observed during the course of the pandemic.

Indexed as

Immune EvasionCross-Sectional StudiesDisease ProgressionHIV-1HIV Envelope Protein gp120HIV InfectionsHost-Pathogen InteractionsHumansPandemicsHIV Envelope Protein gp120

Identifiers

PMID21187897
PMCPMC3002983
OpenAlexW1998541327

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.