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We have generated and characterized a <jats:italic>Lrsam1<\/jats:italic><jats:sup>C698R<\/jats:sup> knock-in mouse model produced through CRISPR\/Cas9 technology. Both heterozygous (<jats:italic>Lrsam1<\/jats:italic><jats:sup>+\/C698R<\/jats:sup>) and homozygous (<jats:italic>Lrsam1<\/jats:italic><jats:sup>C698\/C698R<\/jats:sup>) knock-in mice exhibited normal motor functions on behavioral tests as well as normal on nerve conduction studies. Axonal density and myelin thickness were not significantly different between mutants and wild-type mice by sciatic nerve morphometric analysis up to 17\u00a0months of age. In line with these normal findings, protein\u2013protein interactions between mutant LRSAM1 and RNA-binding proteins (such as FUS and G3BP1) were still present in mouse cells, which differs from the disrupted interactions between these proteins in human CMT2P cells. However, after crush nerve injury, <jats:italic>Lrsam1<\/jats:italic><jats:sup>+<jats:italic>\/C698R<\/jats:italic><\/jats:sup> mice had a mild, but statistically significant, reduced compound nerve action potential and conduction velocity during recovery. Therefore, C698R mutation results in a mild impaired nerve regeneration in mice. We speculate that repetitive nerve injuries may, at least partially, contribute to the slowly progressive axonal loss in CMT2P.<\/jats:p>","DOI":"10.1038\/s41598-022-15902-3","type":"journal-article","created":{"date-parts":[[2022,7,16]],"date-time":"2022-07-16T10:16:02Z","timestamp":1657966562000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["C698R mutation in Lrsam1 gene impairs nerve regeneration in a CMT2P mouse model"],"prefix":"10.1038","volume":"12","author":[{"given":"Daniel","family":"Moiseev","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zafar","family":"Wazir","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Donghao","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jun","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bo","family":"Hu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2022,7,16]]},"reference":[{"key":"15902_CR1","doi-asserted-by":"publisher","first-page":"644","DOI":"10.1038\/s41582-019-0254-5","volume":"15","author":"M Pipis","year":"2019","unstructured":"Pipis, M., Rossor, A. 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