Evidence map›Paper›PMID 18667707›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2008

HIV-1 reverse transcriptase connection subdomain mutations reduce template RNA degradation and enhance AZT excision.

Krista A Delviks-Frankenberry, Galina N Nikolenko, Paul L Boyer, Stephen H Hughes, John M Coffin, Abhay Jere, Vinay K Pathak

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
3.3field-weighted citation impact, top 6% 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

38 citing papers in PubMed, 60 citations in OpenAlex.

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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

7 authors at 3 institutions in 1 country.

Krista A Delviks-FrankenberryViral Mutation Section, HIV Drug Resistance Program, National Cancer Institute at Frederick, Frederick, MD 21702, USA.
Galina N Nikolenko
Paul L Boyer
Stephen H Hughes
John M Coffin
Abhay Jere
Vinay K Pathak
Global Viral · USVector Oncology (United States) · USNational Cancer Institute · US

Funding

Structure and Function of HIV-1 Reverse TranscriptaseZIABC010481 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI HUGHES, STEPHEN H · 2009 to 2022
$15.7M
Role of Connection and RNase H Domains of HIV-1 RT in Antiviral Drug ResistanceZ01BC010532 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI PATHAK, VINAY K. · 2003 to 2008
$1.1M
Role of Connection and RNase H Domains of HIV-1 RT in Antiviral Drug ResistanceZIABC010532 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI PATHAK, VINAY K. · 2009 to 2011
$640k
Intramural NIH HHS Z01 BC010532
6 · The paper itself

Abstract

We previously proposed that mutations in the connection subdomain (cn) of HIV-1 reverse transcriptase increase AZT resistance by altering the balance between nucleotide excision and template RNA degradation. To test the predictions of this model, we analyzed the effects of previously identified cn mutations in combination with thymidine analog mutations (D67N, K70R, T215Y, and K219Q) on in vitro RNase H activity and AZT monophosphate (AZTMP) excision. We found that cn mutations G335C/D, N348I, A360I/V, V365I, and A376S decreased primary and secondary RNase H cleavages. The patient-derived cns increased ATP- and PPi-mediated AZTMP excision on an RNA template compared with a DNA template. One of 5 cns caused an increase in ATP-mediated AZTMP excision on a DNA template, whereas three cns showed a higher ratio of ATP- to PPi-mediated excision, indicating that some cn mutations also affect excision on a DNA substrate. Overall, the results strongly support the model that cn mutations increase AZT resistance by reducing template RNA degradation, thereby providing additional time for RT to excise AZTMP.

Indexed as

Models, BiologicalCell LineCloning, MolecularDNA PrimersDrug Resistance, ViralHIV Reverse TranscriptaseHumansMutagenesisMutationRNAZidovudineDNA PrimersHIV Reverse Transcriptasereverse transcriptase, Human immunodeficiency virus 1RNAZidovudine

Identifiers

PMID18667707
PMCPMC2491488
OpenAlexW2158116620

What OpenQuestion holds

Textmetadata
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.