Evidence map›Paper›PMID 27933225›Full record

ArticleChemistryOpen2016

Rational Design of Dual Active Sites in a Single Protein Scaffold: A Case Study of Heme Protein in Myoglobin.

Xiao-Gang Shu, Ji-Hu Su, Ke-Jie Du, Yong You, Shu-Qin Gao, Ge-Bo Wen, Xiangshi Tan, Ying-Wu Lin

Open access · goldAbstract read
In one paragraph

Article in ChemistryOpen, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

4 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
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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

8 authors at 3 institutions in 1 country.

Xiao-Gang ShuSchool of Chemistry and Chemical Engineering University of South China Hengyang 421001 P. R. China.
Ji-Hu SuDepartment of Modern Physics University of Science and Technology of China Hefei 230026 P. R. China.
Ke-Jie DuSchool of Chemistry and Chemical Engineering University of South China Hengyang 421001 P. R. China.
Yong YouLaboratory of Protein Structure and Function University of South China Hengyang 421001 P. R. China.
Shu-Qin GaoLaboratory of Protein Structure and Function University of South China Hengyang 421001 P. R. China.
Ge-Bo WenLaboratory of Protein Structure and Function University of South China Hengyang 421001 P. R. China.
Xiangshi TanDepartment of Chemistry Shanghai Key Lab of Chemical Biology for Protein Research & Institute of Biomedical Science Fudan University Shanghai 200433 P. R. China.
Ying-Wu LinSchool of Chemistry and Chemical Engineering University of South China Hengyang 421001 P. R. China; Laboratory of Protein Structure and Function University of South China Hengyang 421001 P. R. China.
University of South China · CNFudan University · CNUniversity of Science and Technology of China · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Rational protein design has been proven to be a powerful tool for creating functional artificial proteins. Although many artificial metalloproteins with a single active site have been successfully created, those with dual active sites in a single protein scaffold are still relatively rare. In this study, we rationally designed dual active sites in a single heme protein scaffold, myoglobin (Mb), by retaining the native heme site and creating a copper-binding site remotely through a single mutation of Arg118 to His or Met. Isothermal titration calorimetry (ITC) and electron paramagnetic resonance (EPR) studies confirmed that a copper-binding site of [3-His] or [2-His-1-Met] motif was successfully created in the single mutant of R118H Mb and R118M Mb, respectively. UV/Vis kinetic spectroscopy and EPR studies further revealed that both the heme site and the designed copper site exhibited nitrite reductase activity. This study presents a new example for rational protein design with multiple active sites in a single protein scaffold, which also lays the groundwork for further investigation of the structure and function relationship of heme/non-heme proteins.

Indexed as

electron paramagnetic resonance (EPR)heme proteinsmetal-binding sitenitrite reductaseprotein design

Identifiers

PMID27933225
PMCPMC5125789
OpenAlexW2295341642

What OpenQuestion holds

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Registered trials

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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.