Table 1. Telomeric repeats.
| Species | Motifa(5′→3′) | 3′-Overhangb | T-loopc | G4d |
|---|---|---|---|---|
| Homo sapiens | GGGTTA | Yes (1–3) | Yes (270) | ? |
| Saccharomyces cerevisiae | G1–3T | Yes (383) | ? | ? |
| Trypanosoma brucei | GGGTTA | Yes (384) | Yes (384) | ? |
| Oxytricha fallax/nova | GGGGTTTT | Yes (385,386) | Yes (387) | ? |
| Tetrahymena thermophila | GGGGTT | Yes (388) | ? | ? |
| Stylonychia lemnae/pustulata | GGGGTTTT | Yes (133,385) | ? | Yes (133) |
aSequence of the telomeric repeat motif.
bEvidence for the presence of a 3′ G-rich overhang (and relevant reference).
cEvidence for T-loop formation (and relevant reference).
dEvidence for telomeric quadruplex formation in the cell (and relevant reference).