Evidence map›Paper›PMID 18261820›Full record

ReviewVirus research2008

RNase H activity: structure, specificity, and function in reverse transcription.

Sharon J Schultz, James J Champoux

Open access · greenAbstract readReview
In one paragraph

Review in Virus research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed
7.5field-weighted citation impact, top 2% 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

73 citing papers in PubMed, 145 citations in OpenAlex.

  1. Target, silence, replace: a review on RNA-based drugs in modern medicine.Frontiers in cell and developmental biology · 2026
    Review
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Improved protocol forExperimental biology and medicine (Maywood, N.J.) · 2023
    Article
  8. Article
  9. In vitro evolution of ribonucleases from expanded genetic alphabets.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  10. Review
  11. Article
  12. A truncated reverse transcriptase enhances prime editing by split AAV vectors.Molecular therapy : the journal of the American Society of Gene Therapy · 2022
    Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Review
  18. Article
  19. Review
  20. Review

13 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

2 authors at 1 institution in 1 country.

Sharon J SchultzDepartment of Microbiology, School of Medicine, Box 357242, University of Washington, Seattle, WA 98195, USA.
James J Champoux
University of Washington · US

Funding

The Enzymology of M-MuLV and HIV ReplicationR01CA051605 · NCI · UNIVERSITY OF WASHINGTON · PI CHAMPOUX, JAMES J · 1989 to 2009
$2.8M
ENZYMOLOGY OF M-MULV AND HIV REPLICATIONR37CA051605 · NCI · UNIVERSITY OF WASHINGTON · PI CHAMPOUX, JAMES J · 1995 to 1999
–
NCI NIH HHS CA51605NCI NIH HHS R01 CA051605NCI NIH HHS R37 CA051605
6 · The paper itself

Abstract

This review compares the well-studied RNase H activities of human immunodeficiency virus, type 1 (HIV-1) and Moloney murine leukemia virus (MoMLV) reverse transcriptases. The RNase H domains of HIV-1 and MoMLV are structurally very similar, with functions assigned to conserved subregions like the RNase H primer grip and the connection subdomain, as well as to distinct features like the C-helix and loop in MoMLV RNase H. Like cellular RNases H, catalysis by the retroviral enzymes appears to involve a two-metal ion mechanism. Unlike cellular RNases H, the retroviral RNases H display three different modes of cleavage: internal, DNA 3' end-directed, and RNA 5' end-directed. All three modes of cleavage appear to have roles in reverse transcription. Nucleotide sequence is an important determinant of cleavage specificity with both enzymes exhibiting a preference for specific nucleotides at discrete positions flanking an internal cleavage site as well as during tRNA primer removal and plus-strand primer generation. RNA 5' end-directed and DNA 3' end-directed cleavages show similar sequence preferences at the positions closest to a cleavage site. A model for how RNase H selects cleavage sites is presented that incorporates both sequence preferences and the concept of a defined window for allowable cleavage from a recessed end. Finally, the RNase H activity of HIV-1 is considered as a target for anti-virals as well as a participant in drug resistance.

Indexed as

Reverse TranscriptionAmino Acid SequenceBase SequenceCrystallography, X-RayHIV-1HIV InfectionsHumansMoloney murine leukemia virusProtein Structure, SecondaryProtein Structure, TertiaryReverse Transcriptase InhibitorsRibonuclease HRNA-Directed DNA PolymeraseSubstrate SpecificityReverse Transcriptase InhibitorsRibonuclease HRNA-Directed DNA Polymerase

Identifiers

PMID18261820
PMCPMC2464458
OpenAlexW2008698998

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.