Evidence map›Paper›PMID 23787140›Full record

ArticleJournal of inorganic biochemistry2013

Substrate preference of the HIF-prolyl hydroxylase-2 (PHD2) and substrate-induced conformational change.

Serap Pektas, Michael J Knapp

Open access · greenAbstract read
In one paragraph

Article in Journal of inorganic biochemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.6field-weighted citation impact, top 30% 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

10 citing papers in PubMed, 17 citations in OpenAlex.

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  10. Oxygen sensing strategies in mammals and bacteria.Journal of inorganic biochemistry · 2014
    Review
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.

Serap PektasDepartment of Chemistry, University of Massachusetts, Amherst, MA 01003, USA.
Michael J Knapp
University of Massachusetts Amherst · US

Funding

Molecular mechanisms of hypoxia sensing by the HIF-hydroxylasesR01GM077413 · NIGMS · UNIVERSITY OF MASSACHUSETTS AMHERST · PI KNAPP, MICHAEL J · 2007 to 2018
$2.2M
NIGMS NIH HHS R01 GM077413NIGMS NIH HHS R01-GM077413
6 · The paper itself

Abstract

HIF prolyl-4-hydroxylase 2 (PHD2) is a non-heme Fe, 2-oxoglutarate (2OG) dependent dioxygenase that regulates the hypoxia inducible transcription factor (HIF) by hydroxylating two conserved prolyl residues in N-terminal oxygen degradation domain (NODD) and C-terminal oxygen degradation domain (CODD) of HIF-1α. Prior studies have suggested that the substrate preference of PHD2 arises from binding contacts with the β2β3 loop of PHD2. In this study we tested the substrate selectivity of PHD2 by kinetic competition assays, varied ionic strength, and global protein flexibility using amide H/D exchange (HDX). Our results revealed that PHD2 preferred CODD by 20-fold over NODD and that electrostatics influenced this effect. Global HDX monitored by mass spectrometry indicated that binding of Fe(II) and 2OG stabilized the overall protein structure but the saturating concentrations of either NODD or CODD caused an identical change in protein flexibility. These observations imply that both substrates stabilize the β2β3 loop to the same extent. Under unsaturated substrate conditions NODD led to a higher HDX rate than CODD due to its lower binding affinity to PHD2. Our results suggest that loop closure is the dominant contributor to substrate selectivity in PHD2.

Indexed as

Models, MolecularBinding, CompetitiveBinding SitesCations, DivalentEscherichia coliHumansHydroxylationHypoxia-Inducible Factor 1, alpha SubunitHypoxia-Inducible Factor-Proline DioxygenasesIronKetoglutaric AcidsKineticsProtein BindingProtein Interaction Domains and MotifsProtein Structure, SecondaryRecombinant ProteinsCations, DivalentEGLN1 protein, humanHIF1A protein, humanHypoxia-Inducible Factor 1, alpha SubunitHypoxia-Inducible Factor-Proline DioxygenasesIronKetoglutaric AcidsRecombinant ProteinsHIFHIF-prolyl hydroxylaseHypoxiaNon-heme ironα-Ketoglutarate

Identifiers

PMID23787140
PMCPMC4046702
OpenAlexW2046638225

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.