Evidence map›Paper›PMID 30284812›Full record

ArticleBiochemistry2018

Salvaging the Thermodynamic Destabilization of Interface Histidine in Transmembrane β-Barrels.

Bharat Ramasubramanian Iyer, Pallavi Vijay Vetal, Henna Noordeen, Punit Zadafiya, Radhakrishnan Mahalakshmi

Abstract read
In one paragraph

Article in Biochemistry, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
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

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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

6 citing papers in PubMed.

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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

5 authors.

Bharat Ramasubramanian IyerMolecular Biophysics Laboratory, Department of Biological Sciences , Indian Institute of Science Education and Research , Bhopal 462066 , India.
Pallavi Vijay VetalMolecular Biophysics Laboratory, Department of Biological Sciences , Indian Institute of Science Education and Research , Bhopal 462066 , India.
Henna NoordeenMolecular Biophysics Laboratory, Department of Biological Sciences , Indian Institute of Science Education and Research , Bhopal 462066 , India.
Punit ZadafiyaMolecular Biophysics Laboratory, Department of Biological Sciences , Indian Institute of Science Education and Research , Bhopal 462066 , India.
Radhakrishnan MahalakshmiMolecular Biophysics Laboratory, Department of Biological Sciences , Indian Institute of Science Education and Research , Bhopal 462066 , India.ORCID 0000-0003-1549-7550

Funding

DBT-Wellcome Trust India Alliance IA/I/14/1/501305
6 · The paper itself

Abstract

The ability of histidine to participate in a wide range of stabilizing polar interactions preferentially populates this residue in functionally important sites of proteins. Histidine possesses an amphiphilic and electrostatic nature that is essential for amino acids residing at membrane interfaces. However, the frequency of occurrence of histidine at membrane interfaces, particularly transmembrane β-barrels, is lower than those of other aromatic residues. Here, we carry out comprehensive energetic measurements using equilibrium folding of the outer membrane enzyme PagP to address the contribution of a C-terminal interface histidine to barrel stability. We show that placing histidine at the C-terminus universally destabilizes PagP by 4.0-8.0 kcal mol

Indexed as

AcyltransferasesAmino Acid SequenceAmino Acid SubstitutionBacterial Outer Membrane ProteinsEscherichia coliEscherichia coli ProteinsHistidineHydrophobic and Hydrophilic InteractionsMembrane LipidsModels, MolecularMutagenesis, Site-DirectedProtein Conformation, beta-StrandProtein FoldingProtein Interaction Domains and MotifsProtein StabilityThermodynamicsAcyltransferasesBacterial Outer Membrane ProteinsEscherichia coli ProteinsHistidineMembrane LipidsPagP protein, E coli

Identifiers

PMID30284812
PMCPMC6284319

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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.