{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T16:03:36Z","timestamp":1777565016899,"version":"3.51.4"},"reference-count":44,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2023,2,2]],"date-time":"2023-02-02T00:00:00Z","timestamp":1675296000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100000015","name":"U.S. Department of Energy, Office of Science, Basic Energy Sciences","doi-asserted-by":"publisher","award":["DESC0020246"],"award-info":[{"award-number":["DESC0020246"]}],"id":[{"id":"10.13039\/100000015","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000015","name":"U.S. Department of Energy, Office of Science, Basic Energy Sciences","doi-asserted-by":"publisher","award":["MCB-1714556"],"award-info":[{"award-number":["MCB-1714556"]}],"id":[{"id":"10.13039\/100000015","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000015","name":"U.S. Department of Energy, Office of Science, Basic Energy Sciences","doi-asserted-by":"publisher","award":["P20GM103474"],"award-info":[{"award-number":["P20GM103474"]}],"id":[{"id":"10.13039\/100000015","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000015","name":"U.S. Department of Energy, Office of Science, Basic Energy Sciences","doi-asserted-by":"publisher","award":["S10OD28650"],"award-info":[{"award-number":["S10OD28650"]}],"id":[{"id":"10.13039\/100000015","id-type":"DOI","asserted-by":"publisher"}]},{"name":"U.S. Department of Energy, Office of Science, Basic Energy Sciences","award":["DESC0020246"],"award-info":[{"award-number":["DESC0020246"]}]},{"name":"U.S. Department of Energy, Office of Science, Basic Energy Sciences","award":["MCB-1714556"],"award-info":[{"award-number":["MCB-1714556"]}]},{"name":"U.S. Department of Energy, Office of Science, Basic Energy Sciences","award":["P20GM103474"],"award-info":[{"award-number":["P20GM103474"]}]},{"name":"U.S. Department of Energy, Office of Science, Basic Energy Sciences","award":["S10OD28650"],"award-info":[{"award-number":["S10OD28650"]}]},{"name":"MJ Murdock Charitable Trust and the National Institute of General Medical Sciences of the National Institutes of Health","award":["DESC0020246"],"award-info":[{"award-number":["DESC0020246"]}]},{"name":"MJ Murdock Charitable Trust and the National Institute of General Medical Sciences of the National Institutes of Health","award":["MCB-1714556"],"award-info":[{"award-number":["MCB-1714556"]}]},{"name":"MJ Murdock Charitable Trust and the National Institute of General Medical Sciences of the National Institutes of Health","award":["P20GM103474"],"award-info":[{"award-number":["P20GM103474"]}]},{"name":"MJ Murdock Charitable Trust and the National Institute of General Medical Sciences of the National Institutes of Health","award":["S10OD28650"],"award-info":[{"award-number":["S10OD28650"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Microorganisms"],"abstract":"<jats:p>Arsenic is a toxic metalloid with differential biological effects, depending on speciation and concentration. Trivalent arsenic (arsenite, AsIII) is more toxic at lower concentrations than the pentavalent form (arsenate, AsV). In E. coli, the proteins encoded by the arsRBC operon are the major arsenic detoxification mechanism. Our previous transcriptional analyses indicate broad changes in metal uptake and regulation upon arsenic exposure. Currently, it is not known how arsenic exposure impacts the cellular distribution of other metals. This study examines the metalloproteome of E. coli strains with and without the arsRBC operon in response to sublethal doses of AsIII and AsV. Size exclusion chromatography coupled with inductively coupled plasma mass spectrometry (SEC-ICPMS) was used to investigate the distribution of five metals (56Fe, 24Mg, 66Zn, 75As, and 63Cu) in proteins and protein complexes under native conditions. Parallel analysis by SEC-UV-Vis spectroscopy monitored the presence of protein cofactors. Together, these data reveal global changes in the metalloproteome, proteome, protein cofactors, and soluble intracellular metal pools in response to arsenic stress in E. coli. This work brings to light one outcome of metal exposure and suggests that metal toxicity on the cellular level arises from direct and indirect effects.<\/jats:p>","DOI":"10.3390\/microorganisms11020382","type":"journal-article","created":{"date-parts":[[2023,2,3]],"date-time":"2023-02-03T02:35:10Z","timestamp":1675391710000},"page":"382","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Arsenic Exposure Causes Global Changes in the Metalloproteome of Escherichia coli"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9920-7682","authenticated-orcid":false,"given":"James","family":"Larson","sequence":"first","affiliation":[{"name":"Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59715, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3298-8298","authenticated-orcid":false,"given":"Monika","family":"Tokmina-Lukaszewska","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59715, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hunter","family":"Fausset","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59715, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Scott","family":"Spurzem","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59715, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Savannah","family":"Cox","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59715, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gwendolyn","family":"Cooper","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59715, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2778-1463","authenticated-orcid":false,"given":"Val\u00e9rie","family":"Copi\u00e9","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59715, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1295-9609","authenticated-orcid":false,"given":"Brian","family":"Bothner","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59715, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,2,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"305","DOI":"10.1093\/toxsci\/kfr184","article-title":"Arsenic Exposure and Toxicology: A Historical Perspective","volume":"123","author":"Hughes","year":"2011","journal-title":"Toxicol. 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