Table 1.
Composition and abundance of repeats within human centromeric and pericentromeric regions.
| Peri/Centromere Repeat Type | Repeat Unit Length (bp) | GC Content (%) | Abundance inthe T2T-CHM13 Genome (Mbp; %) | Chromosomal Location in the T2T-CHM13 Genome | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | X | Y | ||||
| α-satellite | ~171 | 39 | 85.67; 2.75 | ||||||||||||||||||||||||
| β-satellite | 68 | 52 | 8.61; 0.28 | ||||||||||||||||||||||||
| ɣ-satellite | ~217 | 59 | 0.65; 0.02 | ||||||||||||||||||||||||
| HSATI | 42 (1A) | 22 (1A) | 13.39; 0.43 (1A) | ||||||||||||||||||||||||
| 2420 (1B) | 24 (1B) | 15.32; 0.49 (1B) | |||||||||||||||||||||||||
| HSATII | Variable | 37 | 28.71; 0.92 | ||||||||||||||||||||||||
| HSATIII | Variable | 41 | 69.33; 2.22 | ||||||||||||||||||||||||
Black square: >1 Mbp of sequence is present on the indicated chromosome; dark gray square: 100 kbp–1Mbp is present; light gray square: 10–100 kbp is present; white square: <10 kbp is present. Calculations include satellites from chromosomes 1–22, X, and Y in the T2T-CHM13 v2.0 genome.