Evidence map›Paper›PMID 40510317›Full record

ArticleChemical science2025

Mining peptides for mining solutions: evaluation of calcium-binding peptides for rare earth element separations.

Farid F Khoury, Bradley S Heater, Daniel R Marzolf, Sameera Abeyrathna, Jonathan W Picking, Piyush Kumar, Steven A Higgins, Randy Jones, Alan T Lewis, Katarzyna H Kucharzyk and 1 more

Abstract read
In one paragraph

Article in Chemical science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

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

1 citing paper in PubMed.

  1. Article
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

11 authors.

Farid F KhouryDepartment of Chemical Engineering, Columbia University New York NY 10027 USA sbanta@columbia.edu.ORCID https://orcid.org/0000-0002-1116-6941
Bradley S HeaterBattelle Memorial Research Institute Columbus OH 43201 USA kucharzyk@battelle.org.ORCID https://orcid.org/0000-0001-8851-4345
Daniel R MarzolfBattelle Memorial Research Institute Columbus OH 43201 USA kucharzyk@battelle.org.
Sameera AbeyrathnaDepartment of Chemical Engineering, Columbia University New York NY 10027 USA sbanta@columbia.edu.ORCID https://orcid.org/0000-0002-1346-6796
Jonathan W PickingBattelle Memorial Research Institute Columbus OH 43201 USA kucharzyk@battelle.org.
Piyush KumarDepartment of Chemical Engineering, Columbia University New York NY 10027 USA sbanta@columbia.edu.ORCID https://orcid.org/0009-0001-7277-7965
Steven A HigginsBattelle Memorial Research Institute Columbus OH 43201 USA kucharzyk@battelle.org.ORCID https://orcid.org/0000-0002-5209-5000
Randy JonesBattelle Memorial Research Institute Columbus OH 43201 USA kucharzyk@battelle.org.
Alan T LewisBattelle Memorial Research Institute Columbus OH 43201 USA kucharzyk@battelle.org.
Katarzyna H KucharzykBattelle Memorial Research Institute Columbus OH 43201 USA kucharzyk@battelle.org.ORCID https://orcid.org/0000-0001-8524-2989
Scott BantaDepartment of Chemical Engineering, Columbia University New York NY 10027 USA sbanta@columbia.edu.ORCID https://orcid.org/0000-0001-7885-0150

Funding

Combination CD-Fluorescence Polarization Spectrophotometer for the Columbia Precision Biomolecular Characterization FacilityS10OD025102 · OD · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI HUNT, JOHN FRANCIS · 2018 to 2018
$138k
NIH HHS S10 OD025102
6 · The paper itself

Abstract

Rare earth elements (REEs), which include the 15 lanthanides plus scandium and yttrium, are critical components commonly used in permanent magnets and play a significant role in electronics and green energy technologies. Due to the similarities of these ions, conventional separation processes are chemically- and energy-intensive and generate large quantities of waste. The lanthanides share physical and chemical similarities with calcium ions, which allow REEs to replace calcium in calcium-binding peptides and proteins. In this study, we conducted a bioinformatic search to identify calcium-binding peptides with high affinity to bind and separate REEs. Seven unique domains representing different calcium-binding geometries were selected for evaluation. The results revealed a strong correlation between the charge of the binding loop and its affinity for REEs. We concluded that highly charged, aspartic acid-rich loops exhibit greater electrostatic repulsion, which creates higher affinity due to the increased stabilization effect of ion binding. Binding affinity across the lanthanide series was highest for ions with radii similar to that of calcium (∼1 Å), consistent with the evolutionary optimization of calcium-binding proteins for selective ion recognition. While selectivity varied among proteins in solution, immobilized proteins demonstrated higher selectivity toward intermediate REEs. One notable candidate identified in the bioinformatic search was HEW5 from

Identifiers

PMID40510317
PMCPMC12152738

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.