Interaction of renalase and its peptides RP211-223 and RP224-232 with the mitochondrial fraction of rat brain: a link to neurodegeneration?

  
Buneeva O.A.1 , Fedchenko V.I.1, Kaloshina S.A.1, Kaloshin A.A.1, Zgoda V.G.1, Medvedev A.E.1

1. Institute of Biomedical Chemistry, Moscow, Russia
Section: Experimental Study
DOI: 10.18097/PBMCR1704      PubMed Id: 42446257
Year: 2026  Volume: 72  Issue: 3  Pages: 220-229
Renalase (RNLS) is a protein exhibiting various functions inside and outside cells. A series of synthetic peptides, corresponding to the fragments of the RNLS amino acid sequence, may reproduce the effects of the full-length RNLS. In this study we have investigated the interaction of proteins in the mitochondrial brain fraction of rats with the full-length RNLS and its peptides RP211-223 (peptide 1) and RP224-232 (peptide 2) immobilized on CNBr-activated Sepharose. Proteomic profiles of proteins bound to the full-length RNLS and its peptide RP211-223 were significantly different, whereas RP224-232 bound a small number of proteins (6), similar to those bound to the full-length RNLS. However, most proteins bound to RNLS and its peptides were multifunctional and associated with neurodegenerative pathology (Alzheimer’s and Parkinson’s diseases, etc.).
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Keywords: renalase, renalase peptides RP211-223 and RP224-232, proteomic profiling, rat brain mitochondria, neurodegeneration
Citation:

Buneeva, O. A., Fedchenko, V. I., Kaloshina, S. A., Kaloshin, A. A., Zgoda, V. G., Medvedev, A. E. (2026). Interaction of renalase and its peptides RP211-223 and RP224-232 with the mitochondrial fraction of rat brain: a link to neurodegeneration?. Biomeditsinskaya Khimiya, 72(3), 220-229.
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