| F | KR | e6rn3F1 | A: alpha arrays | X: Ten stranded beta/alpha barrel | H: Ten stranded beta/alpha barrel | T: Ten stranded beta/alpha barrel | F: KR | ECOD (v295) |
| E | KR | e6rn3E1 | A: alpha arrays | X: Ten stranded beta/alpha barrel | H: Ten stranded beta/alpha barrel | T: Ten stranded beta/alpha barrel | F: KR | ECOD (v295) |
| D | KR | e6rn3D1 | A: alpha arrays | X: Ten stranded beta/alpha barrel | H: Ten stranded beta/alpha barrel | T: Ten stranded beta/alpha barrel | F: KR | ECOD (v295) |
| C | KR | e6rn3C1 | A: alpha arrays | X: Ten stranded beta/alpha barrel | H: Ten stranded beta/alpha barrel | T: Ten stranded beta/alpha barrel | F: KR | ECOD (v295) |
| B | KR | e6rn3B1 | A: alpha arrays | X: Ten stranded beta/alpha barrel | H: Ten stranded beta/alpha barrel | T: Ten stranded beta/alpha barrel | F: KR | ECOD (v295) |
| A | KR | e6rn3A1 | A: alpha arrays | X: Ten stranded beta/alpha barrel | H: Ten stranded beta/alpha barrel | T: Ten stranded beta/alpha barrel | F: KR | ECOD (v295) |