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The S100A7 nuclear interactors in autoimmune diseases: a coevolutionary study in mammals

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Abstract

S100A7, a member of the S100A family of Ca2+-binding proteins, is considered a key effector in immune response. In particular, S100A7 dysregulation has been associated with several diseases, including autoimmune disorders. At the nuclear level, S100A7 interacts with several protein-binding partners which are involved in transcriptional regulation and DNA repair. By using the BioGRID and GAAD databases, S100A7 nuclear interactors with a putative involvement in autoimmune diseases were retrieved. We selected fatty acid–binding protein 5 (FABP5), autoimmune regulator (AIRE), cystic fibrosis transmembrane conductance regulator (CFTR), chromodomain helicase DNA-binding protein 4 (CHD4), epidermal growth factor receptor (EGFR), estrogen receptor 1 (ESR1), histone deacetylase 2 (HDAC2), v-myc avian myelocytomatosis viral oncogene homolog (MYC), protection of telomeres protein 1 (POT1), telomeric repeat–binding factor (NIMA-interacting) 1 (TERF1), telomeric repeat–binding factor 2 (TERF2), and Zic family member 1 (ZIC1). Linear correlation coefficients between interprotein distances were calculated with MirrorTree. Coevolution clusters were also identified with the use of a recent version of the Blocks in Sequences (BIS2) algorithm implemented in the BIS2Analyzer web server. Analysis of pair positions identified interprotein coevolving clusters between S100A7 and the binding partners CFTR and TERF1. Such findings could guide further analysis to better elucidate the function of S100A7 and its binding partners and to design drugs targeting for these molecules in autoimmune diseases.

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Correspondence to Fabio D’Amico.

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251_2022_1256_MOESM1_ESM.pdf

Supplementary file1 Fig. 1. MUSCLE-aligned and Gblocks-curated protein sequences of S100A7 and its binding partners. (PDF 3015 KB)

251_2022_1256_MOESM2_ESM.docx

Supplementary file2 Table 1. Accession numbers (retrieved from http://www.ncbi.nlm.nih.gov) of protein sequences analyzed in this study. Low quality and partial proteins were omitted. (DOCX 26 KB)

Supplementary file3 Table 2. Average pairwise identities (API) for MSAs and concatenated MSAs. (DOCX 14 KB)

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D’Amico, F., Skarmoutsou, E. & Libra, M. The S100A7 nuclear interactors in autoimmune diseases: a coevolutionary study in mammals. Immunogenetics 74, 271–284 (2022). https://doi.org/10.1007/s00251-022-01256-7

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  • DOI: https://doi.org/10.1007/s00251-022-01256-7

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