Evidence map›Paper›PMID 27032648›Full record

ArticleJournal of the American Society for Mass Spectrometry2016

Hydrogen Exchange Mass Spectrometry of Related Proteins with Divergent Sequences: A Comparative Study of HIV-1 Nef Allelic Variants.

Thomas E Wales, Jerrod A Poe, Lori Emert-Sedlak, Christopher R Morgan, Thomas E Smithgall, John R Engen

Abstract read
In one paragraph

Article in Journal of the American Society for Mass Spectrometry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

9 citing papers in PubMed, 13 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

6 authors at 2 institutions in 1 country.

Thomas E WalesDepartment of Chemistry and Chemical Biology, Northeastern University, Boston, MA, 02115, USA.
Jerrod A PoeMicrobiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15261, USA.
Lori Emert-SedlakMicrobiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15261, USA.
Christopher R MorganDepartment of Chemistry and Chemical Biology, Northeastern University, Boston, MA, 02115, USA.
Thomas E SmithgallMicrobiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15261, USA.
John R EngenDepartment of Chemistry and Chemical Biology, Northeastern University, Boston, MA, 02115, USA. j.engen@neu.edu.
Northeastern University · USUniversity of Pittsburgh · US

Funding

Small Molecule Inhibitors of HIV Nef SignalingR01AI057083 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SMITHGALL, THOMAS E. · 2003 to 2019
$5.1M
Structural Biology of HIV-1 Nef with Host Effectors and Small Molecule InhibitorsR01AI102724 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI ALVARADO, JOHN JEFF, SMITHGALL, THOMAS E. · 2013 to 2017
$1.9M
Protein conformational change upon membrane associationR01GM086507 · NIGMS · NORTHEASTERN UNIVERSITY · PI ENGEN, JOHN R · 2009 to 2012
$1.6M
Structural Dynamics of Src-Family Kinase ActivationR01GM070590 · NIGMS · UNIVERSITY OF NEW MEXICO · PI ENGEN, JOHN R · 2004 to 2008
$1.5M
Extending the applications of hydrogen exchange mass spectrometryR01GM101135 · NIGMS · NORTHEASTERN UNIVERSITY · PI ENGEN, JOHN R · 2012 to 2015
$1.2M
Structural Biology of HIV-1 Nef with Host Effectors and Small Molecule InhibitorsR56AI102724 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SMITHGALL, THOMAS E. · 2019 to 2019
$468k
NIAID NIH HHS R01 AI057083NIAID NIH HHS R01 AI102724NIAID NIH HHS R56 AI102724NIGMS NIH HHS R01 GM070590NIGMS NIH HHS R01 GM086507NIGMS NIH HHS R01 GM101135
6 · The paper itself

Abstract

Hydrogen exchange mass spectrometry can be used to compare the conformation and dynamics of proteins that are similar in tertiary structure. If relative deuterium levels are measured, differences in sequence, deuterium forward- and back-exchange, peptide retention time, and protease digestion patterns all complicate the data analysis. We illustrate what can be learned from such data sets by analyzing five variants (Consensus G2E, SF2, NL4-3, ELI, and LTNP4) of the HIV-1 Nef protein, both alone and when bound to the human Hck SH3 domain. Regions with similar sequence could be compared between variants. Although much of the hydrogen exchange features were preserved across the five proteins, the kinetics of Nef binding to Hck SH3 were not the same. These observations may be related to biological function, particularly for ELI Nef where we also observed an impaired ability to downregulate CD4 surface presentation. The data illustrate some of the caveats that must be considered for comparison experiments and provide a framework for investigations of other protein relatives, families, and superfamilies with HX MS. Graphical Abstract ᅟ.

Indexed as

Mass SpectrometryAmino Acid SequenceHIV-1HumansHydrogennef Gene Products, Human Immunodeficiency VirusProto-Oncogene Proteins c-hcksrc Homology DomainsHydrogennef Gene Products, Human Immunodeficiency Virusnef protein, Human immunodeficiency virus 1Proto-Oncogene Proteins c-hckHck SH3Protein conformationSequence conservation

Identifiers

PMID27032648
PMCPMC4865444
OpenAlexW2313556685

What OpenQuestion holds

Textmetadata
LicenceTDM
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.