Research Paper Volume 8, Issue 4 pp 796—809

Naturally occurring mitochondrial-derived peptides are age-dependent regulators of apoptosis, insulin sensitivity, and inflammatory markers

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Figure 1. Identification and validation of small open reading frames (sORFs) within the mitochondrial 16S ribosomal RNA (rRNA) gene. (A) Assigned names, size, location, and predicted sequences of SHLPs. (B) Location of SHLP ORFs within 16S rRNA. (C) Relative expression of SHLPs (1–4 and 6) in C57BL/6 mouse tissues relative to GAPDH (used as a loading control). (D) Expression of SHLPs (1–4 and 6), mitochondrial complexes (COI and COII) and nuclear GAPDH proteins in HeLa parental and HeLa-ρ0 cells. (E) Northern blot of whole cell RNA, whole cell mRNA, mitochondrial RNA, and mitochondrial mRNA using a SHLP6 probe identifies several bands smaller than the 16S rRNA indicated by the arrows.