Map of the human mitochondrial DNA genome (16569 bp, <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/nuccore/251831106">NCBI sequence accession NC_012920</a> — <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1038/290457a0">Anderson et al. 1981</a>).
<p>The H (heavy, outer circle) and L (light, inner circle) strands are given with their corresponding genes.
There are 22 transfer RNA (TRN) genes for the following amino acids: F, V, L1 (codon UUA/G), I, Q, M, W, A, N, C, Y, S1 (UCN), D, K, G, R, H, S2 (AGC/U), L2 (CUN), E, T and P (white boxes).
There are 2 ribosomal RNA (RRN) genes: S (small subunit, or 12S) and L (large subunit, or 16S) (blue boxes).
There are 13 protein-coding genes: 7 for NADH dehydrogenase subunits (ND, yellow boxes), 3 for cytochrome c oxidase subunits (COX, orange boxes), 2 for ATPase subunits (ATP, red boxes), and one for cytochrome b (CYTB, coral box).
Two gene overlaps are indicated (ATP8-ATP6, and ND4L-ND4, black boxes).
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The control region (CR) is the longest non-coding sequence (grey box). Its three hyper-variable regions are indicated (HV, green boxes).
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