Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Number of occurrences of allowed subunits pairing in the 72 possible ring arrangements
| Subunit | A | B | G | D | E | H | Q | Z | #Partners |
|---|---|---|---|---|---|---|---|---|---|
| A | - | 16 | - | 16 | 16 | - | 24 | - | 4 |
| B | 12 | - | 36 | 12 | 12 | - | - | - | 4 |
| G | - | - | - | - | - | - | - | 72 | 1 |
| D | 16 | 16 | - | - | 16 | - | 24 | - | 4 |
| E | 16 | 16 | - | 16 | - | - | 24 | - | 4 |
| H | 14 | 12 | 18 | 14 | 14 | - | - | - | 5 |
| Q | 4 | 6 | 18 | 4 | 4 | 36 | - | - | 6 |
| Z | 10 | 6 | - | 10 | 10 | 36 | - | - | 5 |
| #Partners | 6 | 6 | 3 | 6 | 6 | 2 | 3 | 1 |
