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. 2022 Aug 20;90(7):621–633. doi: 10.1002/mrd.23640

Figure 1.

Figure 1

The porcine mitochondrial genome. (a) The porcine mitochondrial genome is 16.7 kb in size and encodes 13 of the subunits of the electron transfer chain, namely ND1 to 6 and ND4L, CYTB, COX I to III, and ATP6 and ATP8. It also encodes 2 rRNAs (12S and 16S rRNAs), and 22 tRNAs. It contains two noncoding regions. The smaller region is located two‐thirds of the way around the genome and houses the origin of L‐strand replication (OL). The major noncoding region is the D‐Loop, which contains the regulatory regions, the H‐strand promoter region (HSP), the L‐strand promoter region (LSP), and the origin of H‐strand replication (OH). (b) The D‐Loop (mt. 15,434 to mt. 16,679) also contains two hypervariable regions I and II, the central conserved domain, and three conserved sequence boxes (CSB1‐). rRNA, ribosomal RNA; tRNA, transfer RNA.