Age-dependent ataxia and neurodegeneration caused by an αII spectrin mutation with impaired regulation of its calpain sensitivity
Miazek A, Zalas M, Skrzymowska J, Bogin BA, Grzymajło K, Goszczynski TM, Levine ZA, Morrow JS, Stankewich MC. Age-dependent ataxia and neurodegeneration caused by an αII spectrin mutation with impaired regulation of its calpain sensitivity. Scientific Reports 2021, 11: 7312. PMID: 33790315, PMCID: PMC8012654, DOI: 10.1038/s41598-021-86470-1.Peer-Reviewed Original ResearchConceptsSpectrin cleavageCalpain cleavage sitesCalcium-activated proteaseGlobal neurodegenerationTraumatic encephalopathyC57BL/6J miceDendritic integrityExcessive activationNeuronal integrityProgressive ataxiaImpaired regulationCalpain activationCalpain sensitivityPhysiologic significanceNeurodegenerative diseasesNeuronal developmentCalpain proteolysisCalpain proteasesCalcium-dependent bindingAtaxiaNeurodegenerationCalpainActivated calpainSubstrate-level regulationCaM affinity