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- Table of Contents
Facts about Selenoprotein N.
Within the ER, ERO1A activity raises the concentration of H(2)O(2), which attacks the luminal thiols in ATP2A2 and thus results in cysteinyl sulfenic acid formation (-SOH) and SEPN1 reduces the SOH back to free thiol (- SH), thus restoring ATP2A2 action (PubMed:25452428). Acts as a modulator of ryanodine receptor (RyR) action: protects RyR from oxidation due to increased oxidative stress, or directly controls the RyR redox state, regulating the RyR-mediated calcium mobilization needed for normal muscle development and differentiation (PubMed:19557870, PubMed:18713863).
Human | |
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Gene Name: | SELENON |
Uniprot: | Q9NZV5 |
Entrez: | 57190 |
Belongs to: |
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No superfamily |
Selenoprotein N
Mass (kDA):
65.813 kDA
Human | |
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Location: | 1p36.11 |
Sequence: | 1; NC_000001.11 (25800193..25818221) |
Isoform 1 and isoform 2 are expressed in skeletal muscle, brain, lung and placenta. Isoform 2 is also expressed in heart, diaphragm and stomach.
[Isoform 2]: Endoplasmic reticulum membrane.
PMID: 11528383 by Moghadaszadeh B., et al. Mutations in SEPN1 cause congenital muscular dystrophy with spinal rigidity and restrictive respiratory syndrome.
PMID: 10608886 by Lescure A., et al. Novel selenoproteins identified in silico and in vivo by using a conserved RNA structural motif.